tests/zfs-tests/tests/functional/cli_root/zpool_split/zpool_split_vdevs.ksh

   1 #!/bin/ksh -p
   2 #
   3 # This file and its contents are supplied under the terms of the
   4 # Common Development and Distribution License ("CDDL"), version 1.0.
   5 # You may only use this file in accordance with the terms of version
   6 # 1.0 of the CDDL.
   7 #
   8 # A full copy of the text of the CDDL should have accompanied this
   9 # source.  A copy of the CDDL is also available via the Internet at
  10 # http://www.illumos.org/license/CDDL.
  11 #
  12
  13 #
  14 # Copyright 2018, loli10K <ezomori.nozomu@gmail.com>. All rights reserved.
  15 #
  16
  17 . $STF_SUITE/include/libtest.shlib
  18 . $STF_SUITE/tests/functional/cli_root/zpool_split/zpool_split.cfg
  19 . $STF_SUITE/include/math.shlib
  20
  21 #
  22 # DESCRIPTION:
  23 # 'zpool split' should only work on mirrors. Every other VDEV layout is not
  24 # supported.
  25 #
  26 # STRATEGY:
  27 # Create pools with various VDEV layouts and verify only mirrors can be split
  28 #
  29
  30 verify_runnable "both"
  31
  32 function cleanup
  33 {
  34         destroy_pool $TESTPOOL
  35         destroy_pool $TESTPOOL2
  36         rm -f $FILEDEV_PREFIX*
  37 }
  38
  39 #
  40 # Given a vdev type generate a pool configuration which can be immediately
  41 # used as "zpool create $poolname $config" or "zpool add $poolname $config".
  42 # Supported vdev types are:
  43 #  "d" - single disk
  44 #  "t" - stripe
  45 #  "m" - mirror
  46 # "m3" - 3-way mirror
  47 # "z1" - raidz1
  48 # "z2" - raidz2
  49 # "z3" - raidz3
  50 #  "s" - spare
  51 #  "l" - log
  52 # "ll" - mirrored log
  53 #  "c" - cache
  54 #  "sc" - special class
  55 #
  56 function pool_config # <vdev-type>
  57 {
  58         typeset config=""
  59         typeset -A disks
  60         disks[d]="d1"
  61         disks[t]="t1 t2"
  62         disks[m]="m1 m2"
  63         disks[m3]="m1 m2 m3"
  64         disks[z1]="z1 z2"
  65         disks[z2]="z1 z2 z3"
  66         disks[z3]="z1 z2 z3 z4"
  67         disks[s]="s1"
  68         disks[l]="l1"
  69         disks[ll]="l1 l2"
  70         disks[c]="c1"
  71         disks[sc]="sc1 sc2"
  72         case $1 in
  73         d|t) # single disk or stripe
  74                 vdev='' ;;
  75         m|m3) # 2-way or 3-way mirror
  76                 vdev='mirror';;
  77         z1) # raidz1
  78                 vdev='raidz1';;
  79         z2) # raidz2
  80                 vdev='raidz2';;
  81         z3) # raidz3
  82                 vdev='raidz3';;
  83         s) # spare
  84                 vdev='spare';;
  85         l) # log
  86                 vdev='log';;
  87         ll) # mirrored log
  88                 vdev='log mirror';;
  89         c) # cache
  90                 vdev='cache';;
  91         sc) # mirrored special class
  92                 vdev='special mirror';;
  93         *)
  94                 log_fail "setup_pool: unsupported vdev type '$1'"
  95         esac
  96         config="$vdev"
  97         for tok in ${disks[$1]}; do
  98                 filedev="$FILEDEV_PREFIX-$tok"
  99                 # if $filedev exists we are requesting the same vdev type twice
 100                 # in a row (eg. pool of striped mirrors): add a random suffix.
 101                 while [[ -f $filedev ]]; do
 102                         filedev="$filedev.$RANDOM"
 103                 done
 104                 truncate -s $SPA_MINDEVSIZE "$filedev"
 105                 config="$config $filedev"
 106         done
 107         echo "$config"
 108 }
 109
 110 log_assert "'zpool split' should work only on mirror VDEVs"
 111 log_onexit cleanup
 112
 113 # "good" and "bad" pool layouts
 114 # first token is always used with "zpool create"
 115 # second to last tokens, if any, are used with "zpool add"
 116 typeset -a goodconfs=("m" "m l" "m s" "m c" "m m" "m3" "m3 m3" "m m3 l s c" "m m sc")
 117 typeset -a badconfs=("d" "z1" "z2" "z3" "m d" "m3 d" "m z1" "m z2" "m z3")
 118 typeset FILEDEV_PREFIX="$TEST_BASE_DIR/filedev"
 119 typeset altroot="$TESTDIR/altroot-$TESTPOOL2"
 120
 121 # Create pools with various VDEV layouts and verify only mirrors can be split
 122 for config in "${goodconfs[@]}"
 123 do
 124         create_config="${config%% *}"
 125         add_config="$(awk '{$1= "";print $0}' <<< $config)"
 126         log_must zpool create $TESTPOOL $(pool_config $create_config)
 127         for vdev in $add_config; do
 128                 log_must zpool add -f $TESTPOOL $(pool_config $vdev)
 129         done
 130         log_must zpool split -R $altroot $TESTPOOL $TESTPOOL2
 131         log_must poolexists $TESTPOOL2
 132         log_must test "$(get_pool_prop 'altroot' $TESTPOOL2)" == "$altroot"
 133         cleanup
 134 done
 135
 136 # Every other pool layout should *not* be splittable
 137 for config in "${badconfs[@]}"
 138 do
 139         create_config="${config%% *}"
 140         add_config="$(awk '{$1= "";print $0}' <<< $config)"
 141         log_must zpool create $TESTPOOL $(pool_config $create_config)
 142         for vdev in $add_config; do
 143                 log_must zpool add -f $TESTPOOL $(pool_config $vdev)
 144         done
 145         log_mustnot zpool split -R $altroot $TESTPOOL $TESTPOOL2
 146         log_mustnot poolexists $TESTPOOL2
 147         cleanup
 148 done
 149
 150 log_pass "'zpool split' works only on mirror VDEVs"