buildsys: switch upload dist over to buster

[pve-docs.git] / local-zfs.adoc

diff --git a/local-zfs.adoc b/local-zfs.adoc
index e9d085704a367c9a010eda52d82e0a3d2f8290a9..13f6050f6d8021dc2bc08d6a156c14c1ee69d6c6 100644 (file)
--- a/local-zfs.adoc
+++ b/local-zfs.adoc
@@ -1,3 +1,4 @@
+[[chapter_zfs]]
 ZFS on Linux
 ------------
 ifdef::wiki[]
@@ -59,7 +60,7 @@ ZFS depends heavily on memory, so you need at least 8GB to start. In
 practice, use as much you can get for your hardware/budget. To prevent
 data corruption, we recommend the use of high quality ECC RAM.
 
-If you use a dedicated cache and/or log disk, you should use a
+If you use a dedicated cache and/or log disk, you should use an
 enterprise class SSD (e.g. Intel SSD DC S3700 Series). This can
 increase the overall performance significantly.
 
@@ -262,7 +263,12 @@ Activate E-Mail Notification
 
 ZFS comes with an event daemon, which monitors events generated by the
 ZFS kernel module. The daemon can also send emails on ZFS events like
-pool errors.
+pool errors. Newer ZFS packages ships the daemon in a separate package,
+and you can install it using `apt-get`:
+
+----
+# apt-get install zfs-zed
+----
 
 To activate the daemon it is necessary to edit `/etc/zfs/zed.d/zed.rc` with your
 favourite editor, and uncomment the `ZED_EMAIL_ADDR` setting:
@@ -301,14 +307,18 @@ time this value changes:
 ====
 
 
+[[zfs_swap]]
 .SWAP on ZFS
 
-SWAP on ZFS on Linux may generate some troubles, like blocking the
+Swap-space created on a zvol may generate some troubles, like blocking the
 server or generating a high IO load, often seen when starting a Backup
 to an external Storage.
 
 We strongly recommend to use enough memory, so that you normally do not
-run into low memory situations. Additionally, you can lower the
+run into low memory situations. Should you need or want to add swap, it is
+preferred to create a partition on a physical disk and use it as swapdevice.
+You can leave some space free for this purpose in the advanced options of the
+installer. Additionally, you can lower the
 ``swappiness'' value. A good value for servers is 10:
 
  sysctl -w vm.swappiness=10