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sysadmin.adoc: add more ZFS tips

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Dietmar Maurer 2016-01-06 19:31:20 +01:00
parent 8e6e64116e
commit f6733ab323
1 changed files with 12 additions and 1 deletions
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sysadmin.adoc
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@ -276,9 +276,20 @@ If you have more than one disk, you can also use ZFS as file system.
ZFS supports several software RAID levels, so this is specially useful
if you do not have a hardware RAID controller.
TIP: ZFS uses a lot of memory, so it is best to add additional 8-16GB RAM
.ZFS Performance Tips
****
ZFS uses a lot of memory, so it is best to add additional 8-16GB RAM
if you want to use ZFS.
.Use fast SSD as write cache
ZFS provides the feature to use a fast SSD drive as write cache. The
write cache is called the ZFS Intent Log (ZIL). You can add that after
installation using the following command:
zpool add <pool-name> log </dev/path_to_fast_ssd>
****
The next pages just asks for basic configuration options like time
zone and keyboard layout. You also need to specify your email address
and select a superuser password.