Mailing List Archive: Fail-over when primary server is down

Fail-over when primary server is down

Christoph.Pleger at cs

Oct 6, 2021, 1:11 AM

Post #1 of 2 (283 views)

Hello,

in section 4.6 of the user's guide, the basic manual fail-over process
is described as containing a call of "drbdadm secondary <resource>" on
the previous primary server. But how about when that server is so
broken that it is completely down and the command cannot be entered?
Will the previous secondary server take still accept the command
"drbdadm primary <resource>"?

Regards
Christoph

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Re: Fail-over when primary server is down [ In reply to ]

robert.altnoeder at linbit

Oct 6, 2021, 4:10 AM

Post #2 of 2 (283 views)

On 10/6/21 10:11 AM, Christoph Pleger wrote:
> Will the previous secondary server take still accept the command
> "drbdadm primary <resource>"?

Any resource will accept a primary command if its volumes show UpToDate
and none of its peers are already in the Primary role. If an
unresponsive peer is in the Primary role, the safest way to continue on
another node is to power off the unresponsive peer.

br, Robert
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