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installation: align zfs performance tip with PVE documentation

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This one is IMO better worded, so just use that.

Signed-off-by: Christoph Heiss <c.heiss@proxmox.com>
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Christoph Heiss 2024-02-23 12:46:27 +01:00 committed by Thomas Lamprecht
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commit c8be3f0399
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pmg-installation.adoc
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@ -260,16 +260,17 @@ required for lvmthin snapshots).
ZFS Performance Tips ZFS Performance Tips
~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~
ZFS uses a lot of memory, so it is best to add additional RAM if you ZFS works best with a lot of memory. If you intend to use ZFS make sure to have
want to use ZFS. A good calculation is 4GB plus 1GB RAM for each TB enough RAM available for it. A good calculation is 4GB plus 1GB RAM for each TB
RAW disk space. RAW disk space.
ZFS also provides the ability to use a fast SSD drive as write cache. The ZFS can use a dedicated drive as write cache, called the ZFS Intent Log (ZIL).
write cache is called the ZFS Intent Log (ZIL). You can add that after Use a fast drive (SSD) for it. It can be added after installation with the
the installation using the following command: following command:
zpool add <pool-name> log </dev/path_to_fast_ssd>
---
# zpool add <pool-name> log </dev/path_to_fast_ssd>
---
[[pmg_install_on_debian]] [[pmg_install_on_debian]]
Install {pmg} on Debian Install {pmg} on Debian