[pve-devel] [PATCH docs 1/2] Expand documentation for swap with ZFS.
Stoiko Ivanov
s.ivanov at proxmox.com
Fri Nov 23 18:24:03 CET 2018
and add an anchor for referencing in pve-installation.adoc
Signed-off-by: Stoiko Ivanov <s.ivanov at proxmox.com>
---
local-zfs.adoc | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/local-zfs.adoc b/local-zfs.adoc
index a5d2fc1..13f6050 100644
--- a/local-zfs.adoc
+++ b/local-zfs.adoc
@@ -307,14 +307,18 @@ time this value changes:
====
+[[zfs_swap]]
.SWAP on ZFS
-SWAP on ZFS on Linux may generate some troubles, like blocking the
+Swap-space created on a zvol may generate some troubles, like blocking the
server or generating a high IO load, often seen when starting a Backup
to an external Storage.
We strongly recommend to use enough memory, so that you normally do not
-run into low memory situations. Additionally, you can lower the
+run into low memory situations. Should you need or want to add swap, it is
+preferred to create a partition on a physical disk and use it as swapdevice.
+You can leave some space free for this purpose in the advanced options of the
+installer. Additionally, you can lower the
``swappiness'' value. A good value for servers is 10:
sysctl -w vm.swappiness=10
--
2.11.0
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