From f6733ab323a95b8441ddc75996b3c720c832eab3 Mon Sep 17 00:00:00 2001 From: Dietmar Maurer Date: Wed, 6 Jan 2016 19:31:20 +0100 Subject: [PATCH] sysadmin.adoc: add more ZFS tips --- sysadmin.adoc | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/sysadmin.adoc b/sysadmin.adoc index 2ffe150..a543e7e 100644 --- a/sysadmin.adoc +++ b/sysadmin.adoc @@ -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 log +**** + 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. -- 2.39.2