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Subject: Re: [PVE-User] Hardware watchdog for standalone server...
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Subject: Re: [PVE-User] Hardware watchdog for standalone server...
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Hallo Marco,



August 19, 2024 at 3:39 PM, "Marco Gaiarin" <gaio@lilliput.linux.it> wrot=
e:



>=20
>=20The use of a watchdog device (preferibly hardware, if not available,
> softdog) it is clear from:
>=20
>=20 https://pve.proxmox.com/wiki/High_Availability
>=20
>=20and in particular:
>=20
>=20 https://pve.proxmox.com/wiki/High_Availability#ha_manager_fencing
>=20
>=20where you can set (hardware) device module in /etc/default/pve-ha-man=
ager .
>=20
>=20But for a standalone server (or a cluster with no HA enabled) this st=
ill
> apply?! EG, /usr/sbin/watchdog-mux is a valid and general watchdog serv=
ice,
> or better use insted some other services (like 'watchdog' daemon, or
> watchdog support bultin in systemd)?
>=20
Dow=20you want to make your VM/CT HA? That only works reliably with 3x no=
des for quorum (or 2x nodes & qdevice) [0].

But if you want to reset a node if it doesn't spin up a watchdog (doesn't=
 respond), then you could use systemd watchdog[1]. Though I'd like to add=
 that resetting nodes continuously (issue is reoccurring), increases the =
chances for data corruption.

Cheers,
Alwin

[0]=C2=A0https://pve.proxmox.com/wiki/High_Availability#_requirements
[1]=C2=A0https://0pointer.de/blog/projects/watchdog.html
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