[DRBD-user] Upgrade without taking the service down?

Florian Haas florian.haas at linbit.com
Thu Mar 13 20:25:49 CET 2008

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


On Wednesday 12 March 2008 15:28:07 Dominik Klein wrote:
> Hi
>
> say both nodes run version 8.x.y and I want to upgrade to 8.x.y+n (no
> major version change)
>
> Is it safe to
>
> A: primary
> B: secondary
> Disconnect
> Upgrade secondary node (B)
> Connect
> Let drbd sync
> Switchover the service (rolechange)
> Disconnect
> Upgrade secondary node (A)
> Connect
> Let drbd sync
> A: secondary
> B: primary
>
> ?

Yes. Except that instead of disconnect/connect, you need to do down/up.

> And how about 8.0.x to 8.2.x ?

Same procedure.

Florian

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: Florian G. Haas 
: LINBIT Information Technologies GmbH
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