buildsys: switch upload dist over to buster

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

diff --git a/local-zfs.adoc b/local-zfs.adoc
index 6aae81e4a275c729a86514fd2b2d1b5321dcb59b..13f6050f6d8021dc2bc08d6a156c14c1ee69d6c6 100644 (file)
--- a/local-zfs.adoc
+++ b/local-zfs.adoc
@@ -1,6 +1,6 @@
+[[chapter_zfs]]

 ZFS on Linux
 ------------
 ZFS on Linux
 ------------

-include::attributes.txt[]

 ifdef::wiki[]
 :pve-toplevel:
 endif::wiki[]
 ifdef::wiki[]
 :pve-toplevel:
 endif::wiki[]


@@ -60,7 +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.
 
 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.
 
 enterprise class SSD (e.g. Intel SSD DC S3700 Series). This can
 increase the overall performance significantly.
 


@@ -263,7 +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
 
 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:
 
 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:


@@ -302,14 +307,18 @@ time this value changes:
 ====
 
 
 ====
 
 

+[[zfs_swap]]

 .SWAP on ZFS
 
 .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
 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
 ``swappiness'' value. A good value for servers is 10:
 
  sysctl -w vm.swappiness=10