4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
27 #pragma ident "@(#)vdev.c 1.33 07/11/27 SMI"
29 #include <sys/zfs_context.h>
30 #include <sys/fm/fs/zfs.h>
32 #include <sys/spa_impl.h>
34 #include <sys/dmu_tx.h>
35 #include <sys/vdev_impl.h>
36 #include <sys/uberblock_impl.h>
37 #include <sys/metaslab.h>
38 #include <sys/metaslab_impl.h>
39 #include <sys/space_map.h>
42 #include <sys/fs/zfs.h>
45 * Virtual device management.
48 static vdev_ops_t
*vdev_ops_table
[] = {
60 /* maximum scrub/resilver I/O queue */
61 int zfs_scrub_limit
= 70;
64 * Given a vdev type, return the appropriate ops vector.
67 vdev_getops(const char *type
)
69 vdev_ops_t
*ops
, **opspp
;
71 for (opspp
= vdev_ops_table
; (ops
= *opspp
) != NULL
; opspp
++)
72 if (strcmp(ops
->vdev_op_type
, type
) == 0)
79 * Default asize function: return the MAX of psize with the asize of
80 * all children. This is what's used by anything other than RAID-Z.
83 vdev_default_asize(vdev_t
*vd
, uint64_t psize
)
85 uint64_t asize
= P2ROUNDUP(psize
, 1ULL << vd
->vdev_top
->vdev_ashift
);
89 for (c
= 0; c
< vd
->vdev_children
; c
++) {
90 csize
= vdev_psize_to_asize(vd
->vdev_child
[c
], psize
);
91 asize
= MAX(asize
, csize
);
98 * Get the replaceable or attachable device size.
99 * If the parent is a mirror or raidz, the replaceable size is the minimum
100 * psize of all its children. For the rest, just return our own psize.
111 vdev_get_rsize(vdev_t
*vd
)
116 pvd
= vd
->vdev_parent
;
119 * If our parent is NULL or the root, just return our own psize.
121 if (pvd
== NULL
|| pvd
->vdev_parent
== NULL
)
122 return (vd
->vdev_psize
);
126 for (c
= 0; c
< pvd
->vdev_children
; c
++) {
127 cvd
= pvd
->vdev_child
[c
];
128 rsize
= MIN(rsize
- 1, cvd
->vdev_psize
- 1) + 1;
135 vdev_lookup_top(spa_t
*spa
, uint64_t vdev
)
137 vdev_t
*rvd
= spa
->spa_root_vdev
;
139 ASSERT(spa_config_held(spa
, RW_READER
) ||
140 curthread
== spa
->spa_scrub_thread
);
142 if (vdev
< rvd
->vdev_children
)
143 return (rvd
->vdev_child
[vdev
]);
149 vdev_lookup_by_guid(vdev_t
*vd
, uint64_t guid
)
154 if (vd
->vdev_guid
== guid
)
157 for (c
= 0; c
< vd
->vdev_children
; c
++)
158 if ((mvd
= vdev_lookup_by_guid(vd
->vdev_child
[c
], guid
)) !=
166 vdev_add_child(vdev_t
*pvd
, vdev_t
*cvd
)
168 size_t oldsize
, newsize
;
169 uint64_t id
= cvd
->vdev_id
;
172 ASSERT(spa_config_held(cvd
->vdev_spa
, RW_WRITER
));
173 ASSERT(cvd
->vdev_parent
== NULL
);
175 cvd
->vdev_parent
= pvd
;
180 ASSERT(id
>= pvd
->vdev_children
|| pvd
->vdev_child
[id
] == NULL
);
182 oldsize
= pvd
->vdev_children
* sizeof (vdev_t
*);
183 pvd
->vdev_children
= MAX(pvd
->vdev_children
, id
+ 1);
184 newsize
= pvd
->vdev_children
* sizeof (vdev_t
*);
186 newchild
= kmem_zalloc(newsize
, KM_SLEEP
);
187 if (pvd
->vdev_child
!= NULL
) {
188 bcopy(pvd
->vdev_child
, newchild
, oldsize
);
189 kmem_free(pvd
->vdev_child
, oldsize
);
192 pvd
->vdev_child
= newchild
;
193 pvd
->vdev_child
[id
] = cvd
;
195 cvd
->vdev_top
= (pvd
->vdev_top
? pvd
->vdev_top
: cvd
);
196 ASSERT(cvd
->vdev_top
->vdev_parent
->vdev_parent
== NULL
);
199 * Walk up all ancestors to update guid sum.
201 for (; pvd
!= NULL
; pvd
= pvd
->vdev_parent
)
202 pvd
->vdev_guid_sum
+= cvd
->vdev_guid_sum
;
204 if (cvd
->vdev_ops
->vdev_op_leaf
)
205 cvd
->vdev_spa
->spa_scrub_maxinflight
+= zfs_scrub_limit
;
209 vdev_remove_child(vdev_t
*pvd
, vdev_t
*cvd
)
212 uint_t id
= cvd
->vdev_id
;
214 ASSERT(cvd
->vdev_parent
== pvd
);
219 ASSERT(id
< pvd
->vdev_children
);
220 ASSERT(pvd
->vdev_child
[id
] == cvd
);
222 pvd
->vdev_child
[id
] = NULL
;
223 cvd
->vdev_parent
= NULL
;
225 for (c
= 0; c
< pvd
->vdev_children
; c
++)
226 if (pvd
->vdev_child
[c
])
229 if (c
== pvd
->vdev_children
) {
230 kmem_free(pvd
->vdev_child
, c
* sizeof (vdev_t
*));
231 pvd
->vdev_child
= NULL
;
232 pvd
->vdev_children
= 0;
236 * Walk up all ancestors to update guid sum.
238 for (; pvd
!= NULL
; pvd
= pvd
->vdev_parent
)
239 pvd
->vdev_guid_sum
-= cvd
->vdev_guid_sum
;
241 if (cvd
->vdev_ops
->vdev_op_leaf
)
242 cvd
->vdev_spa
->spa_scrub_maxinflight
-= zfs_scrub_limit
;
246 * Remove any holes in the child array.
249 vdev_compact_children(vdev_t
*pvd
)
251 vdev_t
**newchild
, *cvd
;
252 int oldc
= pvd
->vdev_children
;
255 ASSERT(spa_config_held(pvd
->vdev_spa
, RW_WRITER
));
257 for (c
= newc
= 0; c
< oldc
; c
++)
258 if (pvd
->vdev_child
[c
])
261 newchild
= kmem_alloc(newc
* sizeof (vdev_t
*), KM_SLEEP
);
263 for (c
= newc
= 0; c
< oldc
; c
++) {
264 if ((cvd
= pvd
->vdev_child
[c
]) != NULL
) {
265 newchild
[newc
] = cvd
;
266 cvd
->vdev_id
= newc
++;
270 kmem_free(pvd
->vdev_child
, oldc
* sizeof (vdev_t
*));
271 pvd
->vdev_child
= newchild
;
272 pvd
->vdev_children
= newc
;
276 * Allocate and minimally initialize a vdev_t.
279 vdev_alloc_common(spa_t
*spa
, uint_t id
, uint64_t guid
, vdev_ops_t
*ops
)
283 vd
= kmem_zalloc(sizeof (vdev_t
), KM_SLEEP
);
285 if (spa
->spa_root_vdev
== NULL
) {
286 ASSERT(ops
== &vdev_root_ops
);
287 spa
->spa_root_vdev
= vd
;
291 if (spa
->spa_root_vdev
== vd
) {
293 * The root vdev's guid will also be the pool guid,
294 * which must be unique among all pools.
296 while (guid
== 0 || spa_guid_exists(guid
, 0))
297 guid
= spa_get_random(-1ULL);
300 * Any other vdev's guid must be unique within the pool.
303 spa_guid_exists(spa_guid(spa
), guid
))
304 guid
= spa_get_random(-1ULL);
306 ASSERT(!spa_guid_exists(spa_guid(spa
), guid
));
311 vd
->vdev_guid
= guid
;
312 vd
->vdev_guid_sum
= guid
;
314 vd
->vdev_state
= VDEV_STATE_CLOSED
;
316 mutex_init(&vd
->vdev_dtl_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
317 mutex_init(&vd
->vdev_stat_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
318 space_map_create(&vd
->vdev_dtl_map
, 0, -1ULL, 0, &vd
->vdev_dtl_lock
);
319 space_map_create(&vd
->vdev_dtl_scrub
, 0, -1ULL, 0, &vd
->vdev_dtl_lock
);
320 txg_list_create(&vd
->vdev_ms_list
,
321 offsetof(struct metaslab
, ms_txg_node
));
322 txg_list_create(&vd
->vdev_dtl_list
,
323 offsetof(struct vdev
, vdev_dtl_node
));
324 vd
->vdev_stat
.vs_timestamp
= gethrtime();
332 * Allocate a new vdev. The 'alloctype' is used to control whether we are
333 * creating a new vdev or loading an existing one - the behavior is slightly
334 * different for each case.
337 vdev_alloc(spa_t
*spa
, vdev_t
**vdp
, nvlist_t
*nv
, vdev_t
*parent
, uint_t id
,
342 uint64_t guid
= 0, islog
, nparity
;
345 ASSERT(spa_config_held(spa
, RW_WRITER
));
347 if (nvlist_lookup_string(nv
, ZPOOL_CONFIG_TYPE
, &type
) != 0)
350 if ((ops
= vdev_getops(type
)) == NULL
)
354 * If this is a load, get the vdev guid from the nvlist.
355 * Otherwise, vdev_alloc_common() will generate one for us.
357 if (alloctype
== VDEV_ALLOC_LOAD
) {
360 if (nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_ID
, &label_id
) ||
364 if (nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_GUID
, &guid
) != 0)
366 } else if (alloctype
== VDEV_ALLOC_SPARE
) {
367 if (nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_GUID
, &guid
) != 0)
369 } else if (alloctype
== VDEV_ALLOC_L2CACHE
) {
370 if (nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_GUID
, &guid
) != 0)
375 * The first allocated vdev must be of type 'root'.
377 if (ops
!= &vdev_root_ops
&& spa
->spa_root_vdev
== NULL
)
381 * Determine whether we're a log vdev.
384 (void) nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_IS_LOG
, &islog
);
385 if (islog
&& spa_version(spa
) < SPA_VERSION_SLOGS
)
389 * Set the nparity property for RAID-Z vdevs.
392 if (ops
== &vdev_raidz_ops
) {
393 if (nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_NPARITY
,
396 * Currently, we can only support 2 parity devices.
398 if (nparity
== 0 || nparity
> 2)
401 * Older versions can only support 1 parity device.
404 spa_version(spa
) < SPA_VERSION_RAID6
)
408 * We require the parity to be specified for SPAs that
409 * support multiple parity levels.
411 if (spa_version(spa
) >= SPA_VERSION_RAID6
)
414 * Otherwise, we default to 1 parity device for RAID-Z.
421 ASSERT(nparity
!= -1ULL);
423 vd
= vdev_alloc_common(spa
, id
, guid
, ops
);
425 vd
->vdev_islog
= islog
;
426 vd
->vdev_nparity
= nparity
;
428 if (nvlist_lookup_string(nv
, ZPOOL_CONFIG_PATH
, &vd
->vdev_path
) == 0)
429 vd
->vdev_path
= spa_strdup(vd
->vdev_path
);
430 if (nvlist_lookup_string(nv
, ZPOOL_CONFIG_DEVID
, &vd
->vdev_devid
) == 0)
431 vd
->vdev_devid
= spa_strdup(vd
->vdev_devid
);
432 if (nvlist_lookup_string(nv
, ZPOOL_CONFIG_PHYS_PATH
,
433 &vd
->vdev_physpath
) == 0)
434 vd
->vdev_physpath
= spa_strdup(vd
->vdev_physpath
);
437 * Set the whole_disk property. If it's not specified, leave the value
440 if (nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_WHOLE_DISK
,
441 &vd
->vdev_wholedisk
) != 0)
442 vd
->vdev_wholedisk
= -1ULL;
445 * Look for the 'not present' flag. This will only be set if the device
446 * was not present at the time of import.
448 (void) nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_NOT_PRESENT
,
449 &vd
->vdev_not_present
);
452 * Get the alignment requirement.
454 (void) nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_ASHIFT
, &vd
->vdev_ashift
);
457 * If we're a top-level vdev, try to load the allocation parameters.
459 if (parent
&& !parent
->vdev_parent
&& alloctype
== VDEV_ALLOC_LOAD
) {
460 (void) nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_METASLAB_ARRAY
,
462 (void) nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_METASLAB_SHIFT
,
464 (void) nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_ASIZE
,
469 * If we're a leaf vdev, try to load the DTL object and other state.
471 if (vd
->vdev_ops
->vdev_op_leaf
&& alloctype
== VDEV_ALLOC_LOAD
) {
472 (void) nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_DTL
,
473 &vd
->vdev_dtl
.smo_object
);
474 (void) nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_OFFLINE
,
476 (void) nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_UNSPARE
,
479 * When importing a pool, we want to ignore the persistent fault
480 * state, as the diagnosis made on another system may not be
481 * valid in the current context.
483 if (spa
->spa_load_state
== SPA_LOAD_OPEN
) {
484 (void) nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_FAULTED
,
486 (void) nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_DEGRADED
,
488 (void) nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_REMOVED
,
494 * Add ourselves to the parent's list of children.
496 vdev_add_child(parent
, vd
);
504 vdev_free(vdev_t
*vd
)
507 spa_t
*spa
= vd
->vdev_spa
;
510 * vdev_free() implies closing the vdev first. This is simpler than
511 * trying to ensure complicated semantics for all callers.
516 ASSERT(!list_link_active(&vd
->vdev_dirty_node
));
521 for (c
= 0; c
< vd
->vdev_children
; c
++)
522 vdev_free(vd
->vdev_child
[c
]);
524 ASSERT(vd
->vdev_child
== NULL
);
525 ASSERT(vd
->vdev_guid_sum
== vd
->vdev_guid
);
528 * Discard allocation state.
530 if (vd
== vd
->vdev_top
)
531 vdev_metaslab_fini(vd
);
533 ASSERT3U(vd
->vdev_stat
.vs_space
, ==, 0);
534 ASSERT3U(vd
->vdev_stat
.vs_dspace
, ==, 0);
535 ASSERT3U(vd
->vdev_stat
.vs_alloc
, ==, 0);
538 * Remove this vdev from its parent's child list.
540 vdev_remove_child(vd
->vdev_parent
, vd
);
542 ASSERT(vd
->vdev_parent
== NULL
);
545 * Clean up vdev structure.
551 spa_strfree(vd
->vdev_path
);
553 spa_strfree(vd
->vdev_devid
);
554 if (vd
->vdev_physpath
)
555 spa_strfree(vd
->vdev_physpath
);
557 if (vd
->vdev_isspare
)
558 spa_spare_remove(vd
);
559 if (vd
->vdev_isl2cache
)
560 spa_l2cache_remove(vd
);
562 txg_list_destroy(&vd
->vdev_ms_list
);
563 txg_list_destroy(&vd
->vdev_dtl_list
);
564 mutex_enter(&vd
->vdev_dtl_lock
);
565 space_map_unload(&vd
->vdev_dtl_map
);
566 space_map_destroy(&vd
->vdev_dtl_map
);
567 space_map_vacate(&vd
->vdev_dtl_scrub
, NULL
, NULL
);
568 space_map_destroy(&vd
->vdev_dtl_scrub
);
569 mutex_exit(&vd
->vdev_dtl_lock
);
570 mutex_destroy(&vd
->vdev_dtl_lock
);
571 mutex_destroy(&vd
->vdev_stat_lock
);
573 if (vd
== spa
->spa_root_vdev
)
574 spa
->spa_root_vdev
= NULL
;
576 kmem_free(vd
, sizeof (vdev_t
));
580 * Transfer top-level vdev state from svd to tvd.
583 vdev_top_transfer(vdev_t
*svd
, vdev_t
*tvd
)
585 spa_t
*spa
= svd
->vdev_spa
;
590 ASSERT(tvd
== tvd
->vdev_top
);
592 tvd
->vdev_ms_array
= svd
->vdev_ms_array
;
593 tvd
->vdev_ms_shift
= svd
->vdev_ms_shift
;
594 tvd
->vdev_ms_count
= svd
->vdev_ms_count
;
596 svd
->vdev_ms_array
= 0;
597 svd
->vdev_ms_shift
= 0;
598 svd
->vdev_ms_count
= 0;
600 tvd
->vdev_mg
= svd
->vdev_mg
;
601 tvd
->vdev_ms
= svd
->vdev_ms
;
606 if (tvd
->vdev_mg
!= NULL
)
607 tvd
->vdev_mg
->mg_vd
= tvd
;
609 tvd
->vdev_stat
.vs_alloc
= svd
->vdev_stat
.vs_alloc
;
610 tvd
->vdev_stat
.vs_space
= svd
->vdev_stat
.vs_space
;
611 tvd
->vdev_stat
.vs_dspace
= svd
->vdev_stat
.vs_dspace
;
613 svd
->vdev_stat
.vs_alloc
= 0;
614 svd
->vdev_stat
.vs_space
= 0;
615 svd
->vdev_stat
.vs_dspace
= 0;
617 for (t
= 0; t
< TXG_SIZE
; t
++) {
618 while ((msp
= txg_list_remove(&svd
->vdev_ms_list
, t
)) != NULL
)
619 (void) txg_list_add(&tvd
->vdev_ms_list
, msp
, t
);
620 while ((vd
= txg_list_remove(&svd
->vdev_dtl_list
, t
)) != NULL
)
621 (void) txg_list_add(&tvd
->vdev_dtl_list
, vd
, t
);
622 if (txg_list_remove_this(&spa
->spa_vdev_txg_list
, svd
, t
))
623 (void) txg_list_add(&spa
->spa_vdev_txg_list
, tvd
, t
);
626 if (list_link_active(&svd
->vdev_dirty_node
)) {
627 vdev_config_clean(svd
);
628 vdev_config_dirty(tvd
);
631 tvd
->vdev_deflate_ratio
= svd
->vdev_deflate_ratio
;
632 svd
->vdev_deflate_ratio
= 0;
634 tvd
->vdev_islog
= svd
->vdev_islog
;
639 vdev_top_update(vdev_t
*tvd
, vdev_t
*vd
)
648 for (c
= 0; c
< vd
->vdev_children
; c
++)
649 vdev_top_update(tvd
, vd
->vdev_child
[c
]);
653 * Add a mirror/replacing vdev above an existing vdev.
656 vdev_add_parent(vdev_t
*cvd
, vdev_ops_t
*ops
)
658 spa_t
*spa
= cvd
->vdev_spa
;
659 vdev_t
*pvd
= cvd
->vdev_parent
;
662 ASSERT(spa_config_held(spa
, RW_WRITER
));
664 mvd
= vdev_alloc_common(spa
, cvd
->vdev_id
, 0, ops
);
666 mvd
->vdev_asize
= cvd
->vdev_asize
;
667 mvd
->vdev_ashift
= cvd
->vdev_ashift
;
668 mvd
->vdev_state
= cvd
->vdev_state
;
670 vdev_remove_child(pvd
, cvd
);
671 vdev_add_child(pvd
, mvd
);
672 cvd
->vdev_id
= mvd
->vdev_children
;
673 vdev_add_child(mvd
, cvd
);
674 vdev_top_update(cvd
->vdev_top
, cvd
->vdev_top
);
676 if (mvd
== mvd
->vdev_top
)
677 vdev_top_transfer(cvd
, mvd
);
683 * Remove a 1-way mirror/replacing vdev from the tree.
686 vdev_remove_parent(vdev_t
*cvd
)
688 vdev_t
*mvd
= cvd
->vdev_parent
;
689 vdev_t
*pvd
= mvd
->vdev_parent
;
691 ASSERT(spa_config_held(cvd
->vdev_spa
, RW_WRITER
));
693 ASSERT(mvd
->vdev_children
== 1);
694 ASSERT(mvd
->vdev_ops
== &vdev_mirror_ops
||
695 mvd
->vdev_ops
== &vdev_replacing_ops
||
696 mvd
->vdev_ops
== &vdev_spare_ops
);
697 cvd
->vdev_ashift
= mvd
->vdev_ashift
;
699 vdev_remove_child(mvd
, cvd
);
700 vdev_remove_child(pvd
, mvd
);
701 cvd
->vdev_id
= mvd
->vdev_id
;
702 vdev_add_child(pvd
, cvd
);
704 * If we created a new toplevel vdev, then we need to change the child's
705 * vdev GUID to match the old toplevel vdev. Otherwise, we could have
706 * detached an offline device, and when we go to import the pool we'll
707 * think we have two toplevel vdevs, instead of a different version of
708 * the same toplevel vdev.
710 if (cvd
->vdev_top
== cvd
) {
711 pvd
->vdev_guid_sum
-= cvd
->vdev_guid
;
712 cvd
->vdev_guid_sum
-= cvd
->vdev_guid
;
713 cvd
->vdev_guid
= mvd
->vdev_guid
;
714 cvd
->vdev_guid_sum
+= mvd
->vdev_guid
;
715 pvd
->vdev_guid_sum
+= cvd
->vdev_guid
;
717 vdev_top_update(cvd
->vdev_top
, cvd
->vdev_top
);
719 if (cvd
== cvd
->vdev_top
)
720 vdev_top_transfer(mvd
, cvd
);
722 ASSERT(mvd
->vdev_children
== 0);
727 vdev_metaslab_init(vdev_t
*vd
, uint64_t txg
)
729 spa_t
*spa
= vd
->vdev_spa
;
730 objset_t
*mos
= spa
->spa_meta_objset
;
731 metaslab_class_t
*mc
;
733 uint64_t oldc
= vd
->vdev_ms_count
;
734 uint64_t newc
= vd
->vdev_asize
>> vd
->vdev_ms_shift
;
738 if (vd
->vdev_ms_shift
== 0) /* not being allocated from yet */
741 dprintf("%s oldc %llu newc %llu\n", vdev_description(vd
), oldc
, newc
);
743 ASSERT(oldc
<= newc
);
746 mc
= spa
->spa_log_class
;
748 mc
= spa
->spa_normal_class
;
750 if (vd
->vdev_mg
== NULL
)
751 vd
->vdev_mg
= metaslab_group_create(mc
, vd
);
753 mspp
= kmem_zalloc(newc
* sizeof (*mspp
), KM_SLEEP
);
756 bcopy(vd
->vdev_ms
, mspp
, oldc
* sizeof (*mspp
));
757 kmem_free(vd
->vdev_ms
, oldc
* sizeof (*mspp
));
761 vd
->vdev_ms_count
= newc
;
763 for (m
= oldc
; m
< newc
; m
++) {
764 space_map_obj_t smo
= { 0, 0, 0 };
767 error
= dmu_read(mos
, vd
->vdev_ms_array
,
768 m
* sizeof (uint64_t), sizeof (uint64_t), &object
);
773 error
= dmu_bonus_hold(mos
, object
, FTAG
, &db
);
776 ASSERT3U(db
->db_size
, >=, sizeof (smo
));
777 bcopy(db
->db_data
, &smo
, sizeof (smo
));
778 ASSERT3U(smo
.smo_object
, ==, object
);
779 dmu_buf_rele(db
, FTAG
);
782 vd
->vdev_ms
[m
] = metaslab_init(vd
->vdev_mg
, &smo
,
783 m
<< vd
->vdev_ms_shift
, 1ULL << vd
->vdev_ms_shift
, txg
);
790 vdev_metaslab_fini(vdev_t
*vd
)
793 uint64_t count
= vd
->vdev_ms_count
;
795 if (vd
->vdev_ms
!= NULL
) {
796 for (m
= 0; m
< count
; m
++)
797 if (vd
->vdev_ms
[m
] != NULL
)
798 metaslab_fini(vd
->vdev_ms
[m
]);
799 kmem_free(vd
->vdev_ms
, count
* sizeof (metaslab_t
*));
805 vdev_probe(vdev_t
*vd
)
811 * Right now we only support status checks on the leaf vdevs.
813 if (vd
->vdev_ops
->vdev_op_leaf
)
814 return (vd
->vdev_ops
->vdev_op_probe(vd
));
820 * Prepare a virtual device for access.
823 vdev_open(vdev_t
*vd
)
828 uint64_t asize
, psize
;
831 ASSERT(vd
->vdev_state
== VDEV_STATE_CLOSED
||
832 vd
->vdev_state
== VDEV_STATE_CANT_OPEN
||
833 vd
->vdev_state
== VDEV_STATE_OFFLINE
);
835 if (vd
->vdev_fault_mode
== VDEV_FAULT_COUNT
)
836 vd
->vdev_fault_arg
>>= 1;
838 vd
->vdev_fault_mode
= VDEV_FAULT_NONE
;
840 vd
->vdev_stat
.vs_aux
= VDEV_AUX_NONE
;
842 if (!vd
->vdev_removed
&& vd
->vdev_faulted
) {
843 ASSERT(vd
->vdev_children
== 0);
844 vdev_set_state(vd
, B_TRUE
, VDEV_STATE_FAULTED
,
845 VDEV_AUX_ERR_EXCEEDED
);
847 } else if (vd
->vdev_offline
) {
848 ASSERT(vd
->vdev_children
== 0);
849 vdev_set_state(vd
, B_TRUE
, VDEV_STATE_OFFLINE
, VDEV_AUX_NONE
);
853 error
= vd
->vdev_ops
->vdev_op_open(vd
, &osize
, &ashift
);
855 if (zio_injection_enabled
&& error
== 0)
856 error
= zio_handle_device_injection(vd
, ENXIO
);
859 if (vd
->vdev_removed
&&
860 vd
->vdev_stat
.vs_aux
!= VDEV_AUX_OPEN_FAILED
)
861 vd
->vdev_removed
= B_FALSE
;
863 vdev_set_state(vd
, B_TRUE
, VDEV_STATE_CANT_OPEN
,
864 vd
->vdev_stat
.vs_aux
);
868 vd
->vdev_removed
= B_FALSE
;
870 if (vd
->vdev_degraded
) {
871 ASSERT(vd
->vdev_children
== 0);
872 vdev_set_state(vd
, B_TRUE
, VDEV_STATE_DEGRADED
,
873 VDEV_AUX_ERR_EXCEEDED
);
875 vd
->vdev_state
= VDEV_STATE_HEALTHY
;
878 for (c
= 0; c
< vd
->vdev_children
; c
++)
879 if (vd
->vdev_child
[c
]->vdev_state
!= VDEV_STATE_HEALTHY
) {
880 vdev_set_state(vd
, B_TRUE
, VDEV_STATE_DEGRADED
,
885 osize
= P2ALIGN(osize
, (uint64_t)sizeof (vdev_label_t
));
887 if (vd
->vdev_children
== 0) {
888 if (osize
< SPA_MINDEVSIZE
) {
889 vdev_set_state(vd
, B_TRUE
, VDEV_STATE_CANT_OPEN
,
894 asize
= osize
- (VDEV_LABEL_START_SIZE
+ VDEV_LABEL_END_SIZE
);
896 if (vd
->vdev_parent
!= NULL
&& osize
< SPA_MINDEVSIZE
-
897 (VDEV_LABEL_START_SIZE
+ VDEV_LABEL_END_SIZE
)) {
898 vdev_set_state(vd
, B_TRUE
, VDEV_STATE_CANT_OPEN
,
906 vd
->vdev_psize
= psize
;
908 if (vd
->vdev_asize
== 0) {
910 * This is the first-ever open, so use the computed values.
911 * For testing purposes, a higher ashift can be requested.
913 vd
->vdev_asize
= asize
;
914 vd
->vdev_ashift
= MAX(ashift
, vd
->vdev_ashift
);
917 * Make sure the alignment requirement hasn't increased.
919 if (ashift
> vd
->vdev_top
->vdev_ashift
) {
920 vdev_set_state(vd
, B_TRUE
, VDEV_STATE_CANT_OPEN
,
926 * Make sure the device hasn't shrunk.
928 if (asize
< vd
->vdev_asize
) {
929 vdev_set_state(vd
, B_TRUE
, VDEV_STATE_CANT_OPEN
,
935 * If all children are healthy and the asize has increased,
936 * then we've experienced dynamic LUN growth.
938 if (vd
->vdev_state
== VDEV_STATE_HEALTHY
&&
939 asize
> vd
->vdev_asize
) {
940 vd
->vdev_asize
= asize
;
945 * Ensure we can issue some IO before declaring the
946 * vdev open for business.
948 error
= vdev_probe(vd
);
950 vdev_set_state(vd
, B_TRUE
, VDEV_STATE_CANT_OPEN
,
951 VDEV_AUX_OPEN_FAILED
);
956 * If this is a top-level vdev, compute the raidz-deflation
957 * ratio. Note, we hard-code in 128k (1<<17) because it is the
958 * current "typical" blocksize. Even if SPA_MAXBLOCKSIZE
959 * changes, this algorithm must never change, or we will
960 * inconsistently account for existing bp's.
962 if (vd
->vdev_top
== vd
) {
963 vd
->vdev_deflate_ratio
= (1<<17) /
964 (vdev_psize_to_asize(vd
, 1<<17) >> SPA_MINBLOCKSHIFT
);
968 * This allows the ZFS DE to close cases appropriately. If a device
969 * goes away and later returns, we want to close the associated case.
970 * But it's not enough to simply post this only when a device goes from
971 * CANT_OPEN -> HEALTHY. If we reboot the system and the device is
972 * back, we also need to close the case (otherwise we will try to replay
973 * it). So we have to post this notifier every time. Since this only
974 * occurs during pool open or error recovery, this should not be an
977 zfs_post_ok(vd
->vdev_spa
, vd
);
983 * Called once the vdevs are all opened, this routine validates the label
984 * contents. This needs to be done before vdev_load() so that we don't
985 * inadvertently do repair I/Os to the wrong device.
987 * This function will only return failure if one of the vdevs indicates that it
988 * has since been destroyed or exported. This is only possible if
989 * /etc/zfs/zpool.cache was readonly at the time. Otherwise, the vdev state
990 * will be updated but the function will return 0.
993 vdev_validate(vdev_t
*vd
)
995 spa_t
*spa
= vd
->vdev_spa
;
1001 for (c
= 0; c
< vd
->vdev_children
; c
++)
1002 if (vdev_validate(vd
->vdev_child
[c
]) != 0)
1006 * If the device has already failed, or was marked offline, don't do
1007 * any further validation. Otherwise, label I/O will fail and we will
1008 * overwrite the previous state.
1010 if (vd
->vdev_ops
->vdev_op_leaf
&& !vdev_is_dead(vd
)) {
1012 if ((label
= vdev_label_read_config(vd
)) == NULL
) {
1013 vdev_set_state(vd
, B_TRUE
, VDEV_STATE_CANT_OPEN
,
1014 VDEV_AUX_BAD_LABEL
);
1018 if (nvlist_lookup_uint64(label
, ZPOOL_CONFIG_POOL_GUID
,
1019 &guid
) != 0 || guid
!= spa_guid(spa
)) {
1020 vdev_set_state(vd
, B_FALSE
, VDEV_STATE_CANT_OPEN
,
1021 VDEV_AUX_CORRUPT_DATA
);
1026 if (nvlist_lookup_uint64(label
, ZPOOL_CONFIG_GUID
,
1027 &guid
) != 0 || guid
!= vd
->vdev_guid
) {
1028 vdev_set_state(vd
, B_FALSE
, VDEV_STATE_CANT_OPEN
,
1029 VDEV_AUX_CORRUPT_DATA
);
1034 if (nvlist_lookup_uint64(label
, ZPOOL_CONFIG_POOL_STATE
,
1036 vdev_set_state(vd
, B_FALSE
, VDEV_STATE_CANT_OPEN
,
1037 VDEV_AUX_CORRUPT_DATA
);
1044 if (spa
->spa_load_state
== SPA_LOAD_OPEN
&&
1045 state
!= POOL_STATE_ACTIVE
)
1050 * If we were able to open and validate a vdev that was previously
1051 * marked permanently unavailable, clear that state now.
1053 if (vd
->vdev_not_present
)
1054 vd
->vdev_not_present
= 0;
1060 * Close a virtual device.
1063 vdev_close(vdev_t
*vd
)
1065 vd
->vdev_ops
->vdev_op_close(vd
);
1067 vdev_cache_purge(vd
);
1070 * We record the previous state before we close it, so that if we are
1071 * doing a reopen(), we don't generate FMA ereports if we notice that
1072 * it's still faulted.
1074 vd
->vdev_prevstate
= vd
->vdev_state
;
1076 if (vd
->vdev_offline
)
1077 vd
->vdev_state
= VDEV_STATE_OFFLINE
;
1079 vd
->vdev_state
= VDEV_STATE_CLOSED
;
1080 vd
->vdev_stat
.vs_aux
= VDEV_AUX_NONE
;
1084 vdev_reopen(vdev_t
*vd
)
1086 spa_t
*spa
= vd
->vdev_spa
;
1088 ASSERT(spa_config_held(spa
, RW_WRITER
));
1091 (void) vdev_open(vd
);
1094 * Call vdev_validate() here to make sure we have the same device.
1095 * Otherwise, a device with an invalid label could be successfully
1096 * opened in response to vdev_reopen().
1098 (void) vdev_validate(vd
);
1101 * Reassess parent vdev's health.
1103 vdev_propagate_state(vd
);
1107 vdev_create(vdev_t
*vd
, uint64_t txg
, boolean_t isreplacing
)
1112 * Normally, partial opens (e.g. of a mirror) are allowed.
1113 * For a create, however, we want to fail the request if
1114 * there are any components we can't open.
1116 error
= vdev_open(vd
);
1118 if (error
|| vd
->vdev_state
!= VDEV_STATE_HEALTHY
) {
1120 return (error
? error
: ENXIO
);
1124 * Recursively initialize all labels.
1126 if ((error
= vdev_label_init(vd
, txg
, isreplacing
?
1127 VDEV_LABEL_REPLACE
: VDEV_LABEL_CREATE
)) != 0) {
1136 * The is the latter half of vdev_create(). It is distinct because it
1137 * involves initiating transactions in order to do metaslab creation.
1138 * For creation, we want to try to create all vdevs at once and then undo it
1139 * if anything fails; this is much harder if we have pending transactions.
1142 vdev_init(vdev_t
*vd
, uint64_t txg
)
1145 * Aim for roughly 200 metaslabs per vdev.
1147 vd
->vdev_ms_shift
= highbit(vd
->vdev_asize
/ 200);
1148 vd
->vdev_ms_shift
= MAX(vd
->vdev_ms_shift
, SPA_MAXBLOCKSHIFT
);
1151 * Initialize the vdev's metaslabs. This can't fail because
1152 * there's nothing to read when creating all new metaslabs.
1154 VERIFY(vdev_metaslab_init(vd
, txg
) == 0);
1158 vdev_dirty(vdev_t
*vd
, int flags
, void *arg
, uint64_t txg
)
1160 ASSERT(vd
== vd
->vdev_top
);
1161 ASSERT(ISP2(flags
));
1163 if (flags
& VDD_METASLAB
)
1164 (void) txg_list_add(&vd
->vdev_ms_list
, arg
, txg
);
1166 if (flags
& VDD_DTL
)
1167 (void) txg_list_add(&vd
->vdev_dtl_list
, arg
, txg
);
1169 (void) txg_list_add(&vd
->vdev_spa
->spa_vdev_txg_list
, vd
, txg
);
1173 vdev_dtl_dirty(space_map_t
*sm
, uint64_t txg
, uint64_t size
)
1175 mutex_enter(sm
->sm_lock
);
1176 if (!space_map_contains(sm
, txg
, size
))
1177 space_map_add(sm
, txg
, size
);
1178 mutex_exit(sm
->sm_lock
);
1182 vdev_dtl_contains(space_map_t
*sm
, uint64_t txg
, uint64_t size
)
1187 * Quick test without the lock -- covers the common case that
1188 * there are no dirty time segments.
1190 if (sm
->sm_space
== 0)
1193 mutex_enter(sm
->sm_lock
);
1194 dirty
= space_map_contains(sm
, txg
, size
);
1195 mutex_exit(sm
->sm_lock
);
1201 * Reassess DTLs after a config change or scrub completion.
1204 vdev_dtl_reassess(vdev_t
*vd
, uint64_t txg
, uint64_t scrub_txg
, int scrub_done
)
1206 spa_t
*spa
= vd
->vdev_spa
;
1209 ASSERT(spa_config_held(spa
, RW_WRITER
));
1211 if (vd
->vdev_children
== 0) {
1212 mutex_enter(&vd
->vdev_dtl_lock
);
1214 * We're successfully scrubbed everything up to scrub_txg.
1215 * Therefore, excise all old DTLs up to that point, then
1216 * fold in the DTLs for everything we couldn't scrub.
1218 if (scrub_txg
!= 0) {
1219 space_map_excise(&vd
->vdev_dtl_map
, 0, scrub_txg
);
1220 space_map_union(&vd
->vdev_dtl_map
, &vd
->vdev_dtl_scrub
);
1223 space_map_vacate(&vd
->vdev_dtl_scrub
, NULL
, NULL
);
1224 mutex_exit(&vd
->vdev_dtl_lock
);
1226 vdev_dirty(vd
->vdev_top
, VDD_DTL
, vd
, txg
);
1231 * Make sure the DTLs are always correct under the scrub lock.
1233 if (vd
== spa
->spa_root_vdev
)
1234 mutex_enter(&spa
->spa_scrub_lock
);
1236 mutex_enter(&vd
->vdev_dtl_lock
);
1237 space_map_vacate(&vd
->vdev_dtl_map
, NULL
, NULL
);
1238 space_map_vacate(&vd
->vdev_dtl_scrub
, NULL
, NULL
);
1239 mutex_exit(&vd
->vdev_dtl_lock
);
1241 for (c
= 0; c
< vd
->vdev_children
; c
++) {
1242 vdev_t
*cvd
= vd
->vdev_child
[c
];
1243 vdev_dtl_reassess(cvd
, txg
, scrub_txg
, scrub_done
);
1244 mutex_enter(&vd
->vdev_dtl_lock
);
1245 space_map_union(&vd
->vdev_dtl_map
, &cvd
->vdev_dtl_map
);
1246 space_map_union(&vd
->vdev_dtl_scrub
, &cvd
->vdev_dtl_scrub
);
1247 mutex_exit(&vd
->vdev_dtl_lock
);
1250 if (vd
== spa
->spa_root_vdev
)
1251 mutex_exit(&spa
->spa_scrub_lock
);
1255 vdev_dtl_load(vdev_t
*vd
)
1257 spa_t
*spa
= vd
->vdev_spa
;
1258 space_map_obj_t
*smo
= &vd
->vdev_dtl
;
1259 objset_t
*mos
= spa
->spa_meta_objset
;
1263 ASSERT(vd
->vdev_children
== 0);
1265 if (smo
->smo_object
== 0)
1268 if ((error
= dmu_bonus_hold(mos
, smo
->smo_object
, FTAG
, &db
)) != 0)
1271 ASSERT3U(db
->db_size
, >=, sizeof (*smo
));
1272 bcopy(db
->db_data
, smo
, sizeof (*smo
));
1273 dmu_buf_rele(db
, FTAG
);
1275 mutex_enter(&vd
->vdev_dtl_lock
);
1276 error
= space_map_load(&vd
->vdev_dtl_map
, NULL
, SM_ALLOC
, smo
, mos
);
1277 mutex_exit(&vd
->vdev_dtl_lock
);
1283 vdev_dtl_sync(vdev_t
*vd
, uint64_t txg
)
1285 spa_t
*spa
= vd
->vdev_spa
;
1286 space_map_obj_t
*smo
= &vd
->vdev_dtl
;
1287 space_map_t
*sm
= &vd
->vdev_dtl_map
;
1288 objset_t
*mos
= spa
->spa_meta_objset
;
1294 dprintf("%s in txg %llu pass %d\n",
1295 vdev_description(vd
), (u_longlong_t
)txg
, spa_sync_pass(spa
));
1297 tx
= dmu_tx_create_assigned(spa
->spa_dsl_pool
, txg
);
1299 if (vd
->vdev_detached
) {
1300 if (smo
->smo_object
!= 0) {
1301 int err
= dmu_object_free(mos
, smo
->smo_object
, tx
);
1302 ASSERT3U(err
, ==, 0);
1303 smo
->smo_object
= 0;
1306 dprintf("detach %s committed in txg %llu\n",
1307 vdev_description(vd
), txg
);
1311 if (smo
->smo_object
== 0) {
1312 ASSERT(smo
->smo_objsize
== 0);
1313 ASSERT(smo
->smo_alloc
== 0);
1314 smo
->smo_object
= dmu_object_alloc(mos
,
1315 DMU_OT_SPACE_MAP
, 1 << SPACE_MAP_BLOCKSHIFT
,
1316 DMU_OT_SPACE_MAP_HEADER
, sizeof (*smo
), tx
);
1317 ASSERT(smo
->smo_object
!= 0);
1318 vdev_config_dirty(vd
->vdev_top
);
1321 mutex_init(&smlock
, NULL
, MUTEX_DEFAULT
, NULL
);
1323 space_map_create(&smsync
, sm
->sm_start
, sm
->sm_size
, sm
->sm_shift
,
1326 mutex_enter(&smlock
);
1328 mutex_enter(&vd
->vdev_dtl_lock
);
1329 space_map_walk(sm
, space_map_add
, &smsync
);
1330 mutex_exit(&vd
->vdev_dtl_lock
);
1332 space_map_truncate(smo
, mos
, tx
);
1333 space_map_sync(&smsync
, SM_ALLOC
, smo
, mos
, tx
);
1335 space_map_destroy(&smsync
);
1337 mutex_exit(&smlock
);
1338 mutex_destroy(&smlock
);
1340 VERIFY(0 == dmu_bonus_hold(mos
, smo
->smo_object
, FTAG
, &db
));
1341 dmu_buf_will_dirty(db
, tx
);
1342 ASSERT3U(db
->db_size
, >=, sizeof (*smo
));
1343 bcopy(smo
, db
->db_data
, sizeof (*smo
));
1344 dmu_buf_rele(db
, FTAG
);
1350 vdev_load(vdev_t
*vd
)
1355 * Recursively load all children.
1357 for (c
= 0; c
< vd
->vdev_children
; c
++)
1358 vdev_load(vd
->vdev_child
[c
]);
1361 * If this is a top-level vdev, initialize its metaslabs.
1363 if (vd
== vd
->vdev_top
&&
1364 (vd
->vdev_ashift
== 0 || vd
->vdev_asize
== 0 ||
1365 vdev_metaslab_init(vd
, 0) != 0))
1366 vdev_set_state(vd
, B_FALSE
, VDEV_STATE_CANT_OPEN
,
1367 VDEV_AUX_CORRUPT_DATA
);
1370 * If this is a leaf vdev, load its DTL.
1372 if (vd
->vdev_ops
->vdev_op_leaf
&& vdev_dtl_load(vd
) != 0)
1373 vdev_set_state(vd
, B_FALSE
, VDEV_STATE_CANT_OPEN
,
1374 VDEV_AUX_CORRUPT_DATA
);
1378 * The special vdev case is used for hot spares and l2cache devices. Its
1379 * sole purpose it to set the vdev state for the associated vdev. To do this,
1380 * we make sure that we can open the underlying device, then try to read the
1381 * label, and make sure that the label is sane and that it hasn't been
1382 * repurposed to another pool.
1385 vdev_validate_aux(vdev_t
*vd
)
1388 uint64_t guid
, version
;
1391 if ((label
= vdev_label_read_config(vd
)) == NULL
) {
1392 vdev_set_state(vd
, B_TRUE
, VDEV_STATE_CANT_OPEN
,
1393 VDEV_AUX_CORRUPT_DATA
);
1397 if (nvlist_lookup_uint64(label
, ZPOOL_CONFIG_VERSION
, &version
) != 0 ||
1398 version
> SPA_VERSION
||
1399 nvlist_lookup_uint64(label
, ZPOOL_CONFIG_GUID
, &guid
) != 0 ||
1400 guid
!= vd
->vdev_guid
||
1401 nvlist_lookup_uint64(label
, ZPOOL_CONFIG_POOL_STATE
, &state
) != 0) {
1402 vdev_set_state(vd
, B_TRUE
, VDEV_STATE_CANT_OPEN
,
1403 VDEV_AUX_CORRUPT_DATA
);
1409 * We don't actually check the pool state here. If it's in fact in
1410 * use by another pool, we update this fact on the fly when requested.
1417 vdev_sync_done(vdev_t
*vd
, uint64_t txg
)
1421 dprintf("%s txg %llu\n", vdev_description(vd
), txg
);
1423 while (msp
= txg_list_remove(&vd
->vdev_ms_list
, TXG_CLEAN(txg
)))
1424 metaslab_sync_done(msp
, txg
);
1428 vdev_sync(vdev_t
*vd
, uint64_t txg
)
1430 spa_t
*spa
= vd
->vdev_spa
;
1435 dprintf("%s txg %llu pass %d\n",
1436 vdev_description(vd
), (u_longlong_t
)txg
, spa_sync_pass(spa
));
1438 if (vd
->vdev_ms_array
== 0 && vd
->vdev_ms_shift
!= 0) {
1439 ASSERT(vd
== vd
->vdev_top
);
1440 tx
= dmu_tx_create_assigned(spa
->spa_dsl_pool
, txg
);
1441 vd
->vdev_ms_array
= dmu_object_alloc(spa
->spa_meta_objset
,
1442 DMU_OT_OBJECT_ARRAY
, 0, DMU_OT_NONE
, 0, tx
);
1443 ASSERT(vd
->vdev_ms_array
!= 0);
1444 vdev_config_dirty(vd
);
1448 while ((msp
= txg_list_remove(&vd
->vdev_ms_list
, txg
)) != NULL
) {
1449 metaslab_sync(msp
, txg
);
1450 (void) txg_list_add(&vd
->vdev_ms_list
, msp
, TXG_CLEAN(txg
));
1453 while ((lvd
= txg_list_remove(&vd
->vdev_dtl_list
, txg
)) != NULL
)
1454 vdev_dtl_sync(lvd
, txg
);
1456 (void) txg_list_add(&spa
->spa_vdev_txg_list
, vd
, TXG_CLEAN(txg
));
1460 vdev_psize_to_asize(vdev_t
*vd
, uint64_t psize
)
1462 return (vd
->vdev_ops
->vdev_op_asize(vd
, psize
));
1466 vdev_description(vdev_t
*vd
)
1468 if (vd
== NULL
|| vd
->vdev_ops
== NULL
)
1469 return ("<unknown>");
1471 if (vd
->vdev_path
!= NULL
)
1472 return (vd
->vdev_path
);
1474 if (vd
->vdev_parent
== NULL
)
1475 return (spa_name(vd
->vdev_spa
));
1477 return (vd
->vdev_ops
->vdev_op_type
);
1481 * Mark the given vdev faulted. A faulted vdev behaves as if the device could
1482 * not be opened, and no I/O is attempted.
1485 vdev_fault(spa_t
*spa
, uint64_t guid
)
1491 * Disregard a vdev fault request if the pool has
1492 * experienced a complete failure.
1494 * XXX - We do this here so that we don't hold the
1495 * spa_namespace_lock in the event that we can't get
1496 * the RW_WRITER spa_config_lock.
1498 if (spa_state(spa
) == POOL_STATE_IO_FAILURE
)
1501 txg
= spa_vdev_enter(spa
);
1503 rvd
= spa
->spa_root_vdev
;
1505 if ((vd
= vdev_lookup_by_guid(rvd
, guid
)) == NULL
)
1506 return (spa_vdev_exit(spa
, NULL
, txg
, ENODEV
));
1507 if (!vd
->vdev_ops
->vdev_op_leaf
)
1508 return (spa_vdev_exit(spa
, NULL
, txg
, ENOTSUP
));
1511 * Faulted state takes precedence over degraded.
1513 vd
->vdev_faulted
= 1ULL;
1514 vd
->vdev_degraded
= 0ULL;
1515 vdev_set_state(vd
, B_FALSE
, VDEV_STATE_FAULTED
,
1516 VDEV_AUX_ERR_EXCEEDED
);
1519 * If marking the vdev as faulted cause the toplevel vdev to become
1520 * unavailable, then back off and simply mark the vdev as degraded
1523 if (vdev_is_dead(vd
->vdev_top
)) {
1524 vd
->vdev_degraded
= 1ULL;
1525 vd
->vdev_faulted
= 0ULL;
1528 * If we reopen the device and it's not dead, only then do we
1533 if (vdev_readable(vd
)) {
1534 vdev_set_state(vd
, B_FALSE
, VDEV_STATE_DEGRADED
,
1535 VDEV_AUX_ERR_EXCEEDED
);
1539 vdev_config_dirty(vd
->vdev_top
);
1541 (void) spa_vdev_exit(spa
, NULL
, txg
, 0);
1547 * Mark the given vdev degraded. A degraded vdev is purely an indication to the
1548 * user that something is wrong. The vdev continues to operate as normal as far
1549 * as I/O is concerned.
1552 vdev_degrade(spa_t
*spa
, uint64_t guid
)
1558 * Disregard a vdev fault request if the pool has
1559 * experienced a complete failure.
1561 * XXX - We do this here so that we don't hold the
1562 * spa_namespace_lock in the event that we can't get
1563 * the RW_WRITER spa_config_lock.
1565 if (spa_state(spa
) == POOL_STATE_IO_FAILURE
)
1568 txg
= spa_vdev_enter(spa
);
1570 rvd
= spa
->spa_root_vdev
;
1572 if ((vd
= vdev_lookup_by_guid(rvd
, guid
)) == NULL
)
1573 return (spa_vdev_exit(spa
, NULL
, txg
, ENODEV
));
1574 if (!vd
->vdev_ops
->vdev_op_leaf
)
1575 return (spa_vdev_exit(spa
, NULL
, txg
, ENOTSUP
));
1578 * If the vdev is already faulted, then don't do anything.
1580 if (vd
->vdev_faulted
|| vd
->vdev_degraded
) {
1581 (void) spa_vdev_exit(spa
, NULL
, txg
, 0);
1585 vd
->vdev_degraded
= 1ULL;
1586 if (!vdev_is_dead(vd
))
1587 vdev_set_state(vd
, B_FALSE
, VDEV_STATE_DEGRADED
,
1588 VDEV_AUX_ERR_EXCEEDED
);
1589 vdev_config_dirty(vd
->vdev_top
);
1591 (void) spa_vdev_exit(spa
, NULL
, txg
, 0);
1597 * Online the given vdev. If 'unspare' is set, it implies two things. First,
1598 * any attached spare device should be detached when the device finishes
1599 * resilvering. Second, the online should be treated like a 'test' online case,
1600 * so no FMA events are generated if the device fails to open.
1603 vdev_online(spa_t
*spa
, uint64_t guid
, uint64_t flags
,
1604 vdev_state_t
*newstate
)
1610 * Disregard a vdev fault request if the pool has
1611 * experienced a complete failure.
1613 * XXX - We do this here so that we don't hold the
1614 * spa_namespace_lock in the event that we can't get
1615 * the RW_WRITER spa_config_lock.
1617 if (spa_state(spa
) == POOL_STATE_IO_FAILURE
)
1620 txg
= spa_vdev_enter(spa
);
1622 rvd
= spa
->spa_root_vdev
;
1624 if ((vd
= vdev_lookup_by_guid(rvd
, guid
)) == NULL
)
1625 return (spa_vdev_exit(spa
, NULL
, txg
, ENODEV
));
1627 if (!vd
->vdev_ops
->vdev_op_leaf
)
1628 return (spa_vdev_exit(spa
, NULL
, txg
, ENOTSUP
));
1630 vd
->vdev_offline
= B_FALSE
;
1631 vd
->vdev_tmpoffline
= B_FALSE
;
1632 vd
->vdev_checkremove
= (flags
& ZFS_ONLINE_CHECKREMOVE
) ?
1634 vd
->vdev_forcefault
= (flags
& ZFS_ONLINE_FORCEFAULT
) ?
1636 vdev_reopen(vd
->vdev_top
);
1637 vd
->vdev_checkremove
= vd
->vdev_forcefault
= B_FALSE
;
1640 *newstate
= vd
->vdev_state
;
1641 if ((flags
& ZFS_ONLINE_UNSPARE
) &&
1642 !vdev_is_dead(vd
) && vd
->vdev_parent
&&
1643 vd
->vdev_parent
->vdev_ops
== &vdev_spare_ops
&&
1644 vd
->vdev_parent
->vdev_child
[0] == vd
)
1645 vd
->vdev_unspare
= B_TRUE
;
1647 vdev_config_dirty(vd
->vdev_top
);
1649 (void) spa_vdev_exit(spa
, NULL
, txg
, 0);
1652 * Must hold spa_namespace_lock in order to post resilver sysevent
1655 mutex_enter(&spa_namespace_lock
);
1656 VERIFY(spa_scrub(spa
, POOL_SCRUB_RESILVER
, B_TRUE
) == 0);
1657 mutex_exit(&spa_namespace_lock
);
1663 vdev_offline(spa_t
*spa
, uint64_t guid
, uint64_t flags
)
1669 * Disregard a vdev fault request if the pool has
1670 * experienced a complete failure.
1672 * XXX - We do this here so that we don't hold the
1673 * spa_namespace_lock in the event that we can't get
1674 * the RW_WRITER spa_config_lock.
1676 if (spa_state(spa
) == POOL_STATE_IO_FAILURE
)
1679 txg
= spa_vdev_enter(spa
);
1681 rvd
= spa
->spa_root_vdev
;
1683 if ((vd
= vdev_lookup_by_guid(rvd
, guid
)) == NULL
)
1684 return (spa_vdev_exit(spa
, NULL
, txg
, ENODEV
));
1686 if (!vd
->vdev_ops
->vdev_op_leaf
)
1687 return (spa_vdev_exit(spa
, NULL
, txg
, ENOTSUP
));
1690 * If the device isn't already offline, try to offline it.
1692 if (!vd
->vdev_offline
) {
1694 * If this device's top-level vdev has a non-empty DTL,
1695 * don't allow the device to be offlined.
1697 * XXX -- make this more precise by allowing the offline
1698 * as long as the remaining devices don't have any DTL holes.
1700 if (vd
->vdev_top
->vdev_dtl_map
.sm_space
!= 0)
1701 return (spa_vdev_exit(spa
, NULL
, txg
, EBUSY
));
1704 * Offline this device and reopen its top-level vdev.
1705 * If this action results in the top-level vdev becoming
1706 * unusable, undo it and fail the request.
1708 vd
->vdev_offline
= B_TRUE
;
1709 vdev_reopen(vd
->vdev_top
);
1710 if (vdev_is_dead(vd
->vdev_top
)) {
1711 vd
->vdev_offline
= B_FALSE
;
1712 vdev_reopen(vd
->vdev_top
);
1713 return (spa_vdev_exit(spa
, NULL
, txg
, EBUSY
));
1717 vd
->vdev_tmpoffline
= (flags
& ZFS_OFFLINE_TEMPORARY
) ?
1720 vdev_config_dirty(vd
->vdev_top
);
1722 return (spa_vdev_exit(spa
, NULL
, txg
, 0));
1726 * Clear the error counts associated with this vdev. Unlike vdev_online() and
1727 * vdev_offline(), we assume the spa config is locked. We also clear all
1728 * children. If 'vd' is NULL, then the user wants to clear all vdevs.
1729 * If reopen is specified then attempt to reopen the vdev if the vdev is
1730 * faulted or degraded.
1733 vdev_clear(spa_t
*spa
, vdev_t
*vd
, boolean_t reopen_wanted
)
1738 vd
= spa
->spa_root_vdev
;
1740 vd
->vdev_stat
.vs_read_errors
= 0;
1741 vd
->vdev_stat
.vs_write_errors
= 0;
1742 vd
->vdev_stat
.vs_checksum_errors
= 0;
1743 vd
->vdev_is_failing
= B_FALSE
;
1745 for (c
= 0; c
< vd
->vdev_children
; c
++)
1746 vdev_clear(spa
, vd
->vdev_child
[c
], reopen_wanted
);
1749 * If we're in the FAULTED state, then clear the persistent state and
1750 * attempt to reopen the device. We also mark the vdev config dirty, so
1751 * that the new faulted state is written out to disk.
1753 if (reopen_wanted
&& (vd
->vdev_faulted
|| vd
->vdev_degraded
)) {
1754 vd
->vdev_faulted
= vd
->vdev_degraded
= 0;
1756 vdev_config_dirty(vd
->vdev_top
);
1758 if (vd
->vdev_faulted
)
1759 spa_async_request(spa
, SPA_ASYNC_RESILVER
);
1761 spa_event_notify(spa
, vd
, ESC_ZFS_VDEV_CLEAR
);
1766 vdev_readable(vdev_t
*vd
)
1769 return (!vdev_is_dead(vd
));
1773 vdev_writeable(vdev_t
*vd
)
1775 return (!vdev_is_dead(vd
) && !vd
->vdev_is_failing
);
1779 vdev_is_dead(vdev_t
*vd
)
1781 return (vd
->vdev_state
< VDEV_STATE_DEGRADED
);
1785 vdev_error_inject(vdev_t
*vd
, zio_t
*zio
)
1789 if (vd
->vdev_fault_mode
== VDEV_FAULT_NONE
)
1792 if (((1ULL << zio
->io_type
) & vd
->vdev_fault_mask
) == 0)
1795 switch (vd
->vdev_fault_mode
) {
1796 case VDEV_FAULT_RANDOM
:
1797 if (spa_get_random(vd
->vdev_fault_arg
) == 0)
1801 case VDEV_FAULT_COUNT
:
1802 if ((int64_t)--vd
->vdev_fault_arg
<= 0)
1803 vd
->vdev_fault_mode
= VDEV_FAULT_NONE
;
1812 * Get statistics for the given vdev.
1815 vdev_get_stats(vdev_t
*vd
, vdev_stat_t
*vs
)
1817 vdev_t
*rvd
= vd
->vdev_spa
->spa_root_vdev
;
1820 mutex_enter(&vd
->vdev_stat_lock
);
1821 bcopy(&vd
->vdev_stat
, vs
, sizeof (*vs
));
1822 vs
->vs_timestamp
= gethrtime() - vs
->vs_timestamp
;
1823 vs
->vs_state
= vd
->vdev_state
;
1824 vs
->vs_rsize
= vdev_get_rsize(vd
);
1825 mutex_exit(&vd
->vdev_stat_lock
);
1828 * If we're getting stats on the root vdev, aggregate the I/O counts
1829 * over all top-level vdevs (i.e. the direct children of the root).
1832 for (c
= 0; c
< rvd
->vdev_children
; c
++) {
1833 vdev_t
*cvd
= rvd
->vdev_child
[c
];
1834 vdev_stat_t
*cvs
= &cvd
->vdev_stat
;
1836 mutex_enter(&vd
->vdev_stat_lock
);
1837 for (t
= 0; t
< ZIO_TYPES
; t
++) {
1838 vs
->vs_ops
[t
] += cvs
->vs_ops
[t
];
1839 vs
->vs_bytes
[t
] += cvs
->vs_bytes
[t
];
1841 vs
->vs_read_errors
+= cvs
->vs_read_errors
;
1842 vs
->vs_write_errors
+= cvs
->vs_write_errors
;
1843 vs
->vs_checksum_errors
+= cvs
->vs_checksum_errors
;
1844 vs
->vs_scrub_examined
+= cvs
->vs_scrub_examined
;
1845 vs
->vs_scrub_errors
+= cvs
->vs_scrub_errors
;
1846 mutex_exit(&vd
->vdev_stat_lock
);
1852 vdev_clear_stats(vdev_t
*vd
)
1854 mutex_enter(&vd
->vdev_stat_lock
);
1855 vd
->vdev_stat
.vs_space
= 0;
1856 vd
->vdev_stat
.vs_dspace
= 0;
1857 vd
->vdev_stat
.vs_alloc
= 0;
1858 mutex_exit(&vd
->vdev_stat_lock
);
1862 vdev_stat_update(zio_t
*zio
)
1864 vdev_t
*vd
= zio
->io_vd
;
1866 uint64_t txg
= zio
->io_txg
;
1867 vdev_stat_t
*vs
= &vd
->vdev_stat
;
1868 zio_type_t type
= zio
->io_type
;
1869 int flags
= zio
->io_flags
;
1871 if (zio
->io_error
== 0) {
1872 if (!(flags
& ZIO_FLAG_IO_BYPASS
)) {
1873 mutex_enter(&vd
->vdev_stat_lock
);
1875 vs
->vs_bytes
[type
] += zio
->io_size
;
1876 mutex_exit(&vd
->vdev_stat_lock
);
1878 if ((flags
& ZIO_FLAG_IO_REPAIR
) &&
1879 zio
->io_delegate_list
== NULL
) {
1880 mutex_enter(&vd
->vdev_stat_lock
);
1881 if (flags
& ZIO_FLAG_SCRUB_THREAD
)
1882 vs
->vs_scrub_repaired
+= zio
->io_size
;
1884 vs
->vs_self_healed
+= zio
->io_size
;
1885 mutex_exit(&vd
->vdev_stat_lock
);
1890 if (flags
& ZIO_FLAG_SPECULATIVE
)
1893 if (vdev_readable(vd
)) {
1894 mutex_enter(&vd
->vdev_stat_lock
);
1895 if (type
== ZIO_TYPE_READ
) {
1896 if (zio
->io_error
== ECKSUM
)
1897 vs
->vs_checksum_errors
++;
1899 vs
->vs_read_errors
++;
1901 if (type
== ZIO_TYPE_WRITE
)
1902 vs
->vs_write_errors
++;
1903 mutex_exit(&vd
->vdev_stat_lock
);
1906 if (type
== ZIO_TYPE_WRITE
) {
1907 if (txg
== 0 || vd
->vdev_children
!= 0)
1909 if (flags
& ZIO_FLAG_SCRUB_THREAD
) {
1910 ASSERT(flags
& ZIO_FLAG_IO_REPAIR
);
1911 for (pvd
= vd
; pvd
!= NULL
; pvd
= pvd
->vdev_parent
)
1912 vdev_dtl_dirty(&pvd
->vdev_dtl_scrub
, txg
, 1);
1914 if (!(flags
& ZIO_FLAG_IO_REPAIR
)) {
1915 if (vdev_dtl_contains(&vd
->vdev_dtl_map
, txg
, 1))
1917 vdev_dirty(vd
->vdev_top
, VDD_DTL
, vd
, txg
);
1918 for (pvd
= vd
; pvd
!= NULL
; pvd
= pvd
->vdev_parent
)
1919 vdev_dtl_dirty(&pvd
->vdev_dtl_map
, txg
, 1);
1925 vdev_scrub_stat_update(vdev_t
*vd
, pool_scrub_type_t type
, boolean_t complete
)
1928 vdev_stat_t
*vs
= &vd
->vdev_stat
;
1930 for (c
= 0; c
< vd
->vdev_children
; c
++)
1931 vdev_scrub_stat_update(vd
->vdev_child
[c
], type
, complete
);
1933 mutex_enter(&vd
->vdev_stat_lock
);
1935 if (type
== POOL_SCRUB_NONE
) {
1937 * Update completion and end time. Leave everything else alone
1938 * so we can report what happened during the previous scrub.
1940 vs
->vs_scrub_complete
= complete
;
1941 vs
->vs_scrub_end
= gethrestime_sec();
1943 vs
->vs_scrub_type
= type
;
1944 vs
->vs_scrub_complete
= 0;
1945 vs
->vs_scrub_examined
= 0;
1946 vs
->vs_scrub_repaired
= 0;
1947 vs
->vs_scrub_errors
= 0;
1948 vs
->vs_scrub_start
= gethrestime_sec();
1949 vs
->vs_scrub_end
= 0;
1952 mutex_exit(&vd
->vdev_stat_lock
);
1956 * Update the in-core space usage stats for this vdev and the root vdev.
1959 vdev_space_update(vdev_t
*vd
, int64_t space_delta
, int64_t alloc_delta
,
1960 boolean_t update_root
)
1962 int64_t dspace_delta
= space_delta
;
1963 spa_t
*spa
= vd
->vdev_spa
;
1964 vdev_t
*rvd
= spa
->spa_root_vdev
;
1966 ASSERT(vd
== vd
->vdev_top
);
1969 * Apply the inverse of the psize-to-asize (ie. RAID-Z) space-expansion
1970 * factor. We must calculate this here and not at the root vdev
1971 * because the root vdev's psize-to-asize is simply the max of its
1972 * childrens', thus not accurate enough for us.
1974 ASSERT((dspace_delta
& (SPA_MINBLOCKSIZE
-1)) == 0);
1975 dspace_delta
= (dspace_delta
>> SPA_MINBLOCKSHIFT
) *
1976 vd
->vdev_deflate_ratio
;
1978 mutex_enter(&vd
->vdev_stat_lock
);
1979 vd
->vdev_stat
.vs_space
+= space_delta
;
1980 vd
->vdev_stat
.vs_alloc
+= alloc_delta
;
1981 vd
->vdev_stat
.vs_dspace
+= dspace_delta
;
1982 mutex_exit(&vd
->vdev_stat_lock
);
1985 ASSERT(rvd
== vd
->vdev_parent
);
1986 ASSERT(vd
->vdev_ms_count
!= 0);
1989 * Don't count non-normal (e.g. intent log) space as part of
1990 * the pool's capacity.
1992 if (vd
->vdev_mg
->mg_class
!= spa
->spa_normal_class
)
1995 mutex_enter(&rvd
->vdev_stat_lock
);
1996 rvd
->vdev_stat
.vs_space
+= space_delta
;
1997 rvd
->vdev_stat
.vs_alloc
+= alloc_delta
;
1998 rvd
->vdev_stat
.vs_dspace
+= dspace_delta
;
1999 mutex_exit(&rvd
->vdev_stat_lock
);
2004 * Mark a top-level vdev's config as dirty, placing it on the dirty list
2005 * so that it will be written out next time the vdev configuration is synced.
2006 * If the root vdev is specified (vdev_top == NULL), dirty all top-level vdevs.
2009 vdev_config_dirty(vdev_t
*vd
)
2011 spa_t
*spa
= vd
->vdev_spa
;
2012 vdev_t
*rvd
= spa
->spa_root_vdev
;
2016 * The dirty list is protected by the config lock. The caller must
2017 * either hold the config lock as writer, or must be the sync thread
2018 * (which holds the lock as reader). There's only one sync thread,
2019 * so this is sufficient to ensure mutual exclusion.
2021 ASSERT(spa_config_held(spa
, RW_WRITER
) ||
2022 dsl_pool_sync_context(spa_get_dsl(spa
)));
2025 for (c
= 0; c
< rvd
->vdev_children
; c
++)
2026 vdev_config_dirty(rvd
->vdev_child
[c
]);
2028 ASSERT(vd
== vd
->vdev_top
);
2030 if (!list_link_active(&vd
->vdev_dirty_node
))
2031 list_insert_head(&spa
->spa_dirty_list
, vd
);
2036 vdev_config_clean(vdev_t
*vd
)
2038 spa_t
*spa
= vd
->vdev_spa
;
2040 ASSERT(spa_config_held(spa
, RW_WRITER
) ||
2041 dsl_pool_sync_context(spa_get_dsl(spa
)));
2043 ASSERT(list_link_active(&vd
->vdev_dirty_node
));
2044 list_remove(&spa
->spa_dirty_list
, vd
);
2048 vdev_propagate_state(vdev_t
*vd
)
2050 vdev_t
*rvd
= vd
->vdev_spa
->spa_root_vdev
;
2051 int degraded
= 0, faulted
= 0;
2056 if (vd
->vdev_children
> 0) {
2057 for (c
= 0; c
< vd
->vdev_children
; c
++) {
2058 child
= vd
->vdev_child
[c
];
2059 if (vdev_is_dead(child
) && !vdev_readable(child
))
2061 else if (child
->vdev_state
<= VDEV_STATE_DEGRADED
)
2064 if (child
->vdev_stat
.vs_aux
== VDEV_AUX_CORRUPT_DATA
)
2068 vd
->vdev_ops
->vdev_op_state_change(vd
, faulted
, degraded
);
2071 * Root special: if there is a toplevel vdev that cannot be
2072 * opened due to corrupted metadata, then propagate the root
2073 * vdev's aux state as 'corrupt' rather than 'insufficient
2076 if (corrupted
&& vd
== rvd
&&
2077 rvd
->vdev_state
== VDEV_STATE_CANT_OPEN
)
2078 vdev_set_state(rvd
, B_FALSE
, VDEV_STATE_CANT_OPEN
,
2079 VDEV_AUX_CORRUPT_DATA
);
2082 if (vd
->vdev_parent
&& !vd
->vdev_islog
)
2083 vdev_propagate_state(vd
->vdev_parent
);
2087 * Set a vdev's state. If this is during an open, we don't update the parent
2088 * state, because we're in the process of opening children depth-first.
2089 * Otherwise, we propagate the change to the parent.
2091 * If this routine places a device in a faulted state, an appropriate ereport is
2095 vdev_set_state(vdev_t
*vd
, boolean_t isopen
, vdev_state_t state
, vdev_aux_t aux
)
2097 uint64_t save_state
;
2099 if (state
== vd
->vdev_state
) {
2100 vd
->vdev_stat
.vs_aux
= aux
;
2104 save_state
= vd
->vdev_state
;
2106 vd
->vdev_state
= state
;
2107 vd
->vdev_stat
.vs_aux
= aux
;
2110 * If we are setting the vdev state to anything but an open state, then
2111 * always close the underlying device. Otherwise, we keep accessible
2112 * but invalid devices open forever. We don't call vdev_close() itself,
2113 * because that implies some extra checks (offline, etc) that we don't
2114 * want here. This is limited to leaf devices, because otherwise
2115 * closing the device will affect other children.
2117 if (!vdev_readable(vd
) && vd
->vdev_ops
->vdev_op_leaf
)
2118 vd
->vdev_ops
->vdev_op_close(vd
);
2120 if (vd
->vdev_removed
&&
2121 state
== VDEV_STATE_CANT_OPEN
&&
2122 (aux
== VDEV_AUX_OPEN_FAILED
|| vd
->vdev_checkremove
)) {
2124 * If the previous state is set to VDEV_STATE_REMOVED, then this
2125 * device was previously marked removed and someone attempted to
2126 * reopen it. If this failed due to a nonexistent device, then
2127 * keep the device in the REMOVED state. We also let this be if
2128 * it is one of our special test online cases, which is only
2129 * attempting to online the device and shouldn't generate an FMA
2132 vd
->vdev_state
= VDEV_STATE_REMOVED
;
2133 vd
->vdev_stat
.vs_aux
= VDEV_AUX_NONE
;
2134 } else if (state
== VDEV_STATE_REMOVED
) {
2136 * Indicate to the ZFS DE that this device has been removed, and
2137 * any recent errors should be ignored.
2139 zfs_post_remove(vd
->vdev_spa
, vd
);
2140 vd
->vdev_removed
= B_TRUE
;
2141 } else if (state
== VDEV_STATE_CANT_OPEN
) {
2143 * If we fail to open a vdev during an import, we mark it as
2144 * "not available", which signifies that it was never there to
2145 * begin with. Failure to open such a device is not considered
2148 if (vd
->vdev_spa
->spa_load_state
== SPA_LOAD_IMPORT
&&
2149 vd
->vdev_ops
->vdev_op_leaf
)
2150 vd
->vdev_not_present
= 1;
2153 * Post the appropriate ereport. If the 'prevstate' field is
2154 * set to something other than VDEV_STATE_UNKNOWN, it indicates
2155 * that this is part of a vdev_reopen(). In this case, we don't
2156 * want to post the ereport if the device was already in the
2157 * CANT_OPEN state beforehand.
2159 * If the 'checkremove' flag is set, then this is an attempt to
2160 * online the device in response to an insertion event. If we
2161 * hit this case, then we have detected an insertion event for a
2162 * faulted or offline device that wasn't in the removed state.
2163 * In this scenario, we don't post an ereport because we are
2164 * about to replace the device, or attempt an online with
2165 * vdev_forcefault, which will generate the fault for us.
2167 if ((vd
->vdev_prevstate
!= state
|| vd
->vdev_forcefault
) &&
2168 !vd
->vdev_not_present
&& !vd
->vdev_checkremove
&&
2169 vd
!= vd
->vdev_spa
->spa_root_vdev
) {
2173 case VDEV_AUX_OPEN_FAILED
:
2174 class = FM_EREPORT_ZFS_DEVICE_OPEN_FAILED
;
2176 case VDEV_AUX_CORRUPT_DATA
:
2177 class = FM_EREPORT_ZFS_DEVICE_CORRUPT_DATA
;
2179 case VDEV_AUX_NO_REPLICAS
:
2180 class = FM_EREPORT_ZFS_DEVICE_NO_REPLICAS
;
2182 case VDEV_AUX_BAD_GUID_SUM
:
2183 class = FM_EREPORT_ZFS_DEVICE_BAD_GUID_SUM
;
2185 case VDEV_AUX_TOO_SMALL
:
2186 class = FM_EREPORT_ZFS_DEVICE_TOO_SMALL
;
2188 case VDEV_AUX_BAD_LABEL
:
2189 class = FM_EREPORT_ZFS_DEVICE_BAD_LABEL
;
2192 class = FM_EREPORT_ZFS_DEVICE_UNKNOWN
;
2195 zfs_ereport_post(class, vd
->vdev_spa
,
2196 vd
, NULL
, save_state
, 0);
2199 /* Erase any notion of persistent removed state */
2200 vd
->vdev_removed
= B_FALSE
;
2202 vd
->vdev_removed
= B_FALSE
;
2206 vdev_propagate_state(vd
);