From: Wolfgang Link <w.link@proxmox.com>
Date: Mon, 3 Oct 2016 07:28:56 +0000 (+0200)
Subject: ZFS RAM usage more precise.
X-Git-Url: https://git.proxmox.com/?p=pve-docs.git;a=commitdiff_plain;h=cdf58596f8d8e7363a5bff6f1909f1299952bd7f;ds=inline

ZFS RAM usage more precise.
---

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