From cdf58596f8d8e7363a5bff6f1909f1299952bd7f Mon Sep 17 00:00:00 2001 From: Wolfgang Link Date: Mon, 3 Oct 2016 09:28:56 +0200 Subject: [PATCH] ZFS RAM usage more precise. --- pve-installation.adoc | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/pve-installation.adoc b/pve-installation.adoc index 032fd51..cf32851 100644 --- a/pve-installation.adoc +++ b/pve-installation.adoc @@ -135,8 +135,9 @@ required for lvmthin snapshots). 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. +ZFS uses a lot of memory, so it is best to add additional RAM if you +want to use ZFS. A good calculation is 4GB plus 1GB RAM for each TB +RAW disk space. ZFS also 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 -- 2.39.2