From: Friedrich Weber <f.weber@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH docs 2/2] storage: rbd: document KRBD map options property
Date: Fri, 25 Oct 2024 13:13:04 +0200 [thread overview]
Message-ID: <20241025111304.99680-3-f.weber@proxmox.com> (raw)
In-Reply-To: <20241025111304.99680-1-f.weber@proxmox.com>
Describe the new `krbd-map-options` property, and mention under which
circumstances the `rxbounce` option may be necessary.
Signed-off-by: Friedrich Weber <f.weber@proxmox.com>
---
pve-storage-rbd.adoc | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/pve-storage-rbd.adoc b/pve-storage-rbd.adoc
index 5fe558a..71fbc02 100644
--- a/pve-storage-rbd.adoc
+++ b/pve-storage-rbd.adoc
@@ -56,6 +56,16 @@ Enforce access to rados block devices through the krbd kernel module. Optional.
NOTE: Containers will use `krbd` independent of the option value.
+krbd-map-options::
+
+Comma-separated list of additional map options for KRBD, see the Ceph docs.
+footnote:[Kernel RBD (KRBD) options
+{cephdocs-url}/man/8/rbd/#kernel-rbd-krbd-options] Optional.
++
+Currently, only the `rxbounce` option is supported. In case the pool hosts
+Windows VM disks, setting `rxbounce` can be necessary to avoid performance
+degradation and `bad crc/signature` warnings in the host journal.
+
.Configuration Example for a external Ceph cluster (`/etc/pve/storage.cfg`)
----
rbd: ceph-external
--
2.39.5
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prev parent reply other threads:[~2024-10-25 11:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-25 11:13 [pve-devel] [PATCH storage/docs 0/2] fix #5779: storage: rbd: allow setting custom KRBD map option(s) Friedrich Weber
2024-10-25 11:13 ` [pve-devel] [PATCH storage 1/2] fix #5779: rbd: allow to pass custom krbd map options Friedrich Weber
2024-10-29 13:58 ` Aaron Lauterer
2024-10-29 17:01 ` Friedrich Weber
2024-10-30 8:41 ` Thomas Lamprecht
2024-10-30 13:29 ` Fabian Grünbichler
2024-10-30 16:49 ` Friedrich Weber
2024-10-25 11:13 ` Friedrich Weber [this message]
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