[pve-devel] [PATCH docs 2/2] pvecm: add qdevice status flag explanation

[Aaron Lauterer <a.lauterer@proxmox.com>]

They are underdocumented and finding information is not that easy.

Signed-off-by: Aaron Lauterer <a.lauterer@proxmox.com>
---

Found some info in the suse documentation [0] and the sourcecode [1].
We do not ship man 3 pages, therefore I used a direct link to the github
repo as that seems to be the only place that talks abit about the MW /
NMW flag.

[0] https://documentation.suse.com/sle-ha/15-SP1/html/SLE-HA-all/cha-ha-qdevice.html
[1] https://github.com/corosync/corosync/blob/v3.1.7/tools/corosync-quorumtool.c#L524-L536


 pvecm.adoc | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/pvecm.adoc b/pvecm.adoc
index 45271e8..e286bdd 100644
--- a/pvecm.adoc
+++ b/pvecm.adoc
@@ -1082,6 +1082,21 @@ Membership information
 
 ----
 
+QDevice Status Flags
+^^^^^^^^^^^^^^^^^^^^
+
+The status output of the QDevice, as seen above, will usually contain three
+columns:
+
+* `A` / `NA`: Alive or Not Alive. Indicates if the communication to the external
+    `corosync-qndetd` daemon works.
+* `V` / `NV`: If the QDevice will cast a vote for the node. In a split-brain
+    situation, where the corosync connection between the nodes is down, but they
+    both can still communicate with the external `corosync-qnetd` daemon,
+    only one node will get the vote.
+* `MW` / `NMW`: Master wins (`MV`) or not (`NMW`). Default is `NMW`, see footnote:[`votequorum_qdevice_master_wins` manual page https://github.com/corosync/corosync/blob/main/man/votequorum_qdevice_master_wins.3.in].
+* `NR`: QDevice is not registered.
+
 
 Frequently Asked Questions
 ~~~~~~~~~~~~~~~~~~~~~~~~~~
-- 
2.39.2