[DRBD-user] drbdadm adjust

Damon Estep damon at soho-systems.com
Fri Apr 11 15:52:15 CEST 2008

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



> -----Original Message-----
> From: drbd-user-bounces at lists.linbit.com [mailto:drbd-user-
> bounces at lists.linbit.com] On Behalf Of Lars Ellenberg
> Sent: Friday, April 11, 2008 12:58 AM
> To: drbd-user at lists.linbit.com
> Subject: Re: [DRBD-user] drbdadm adjust
> 
> On Thu, Apr 10, 2008 at 10:58:43PM -0600, Damon Estep wrote:
> >
> >    I was under the impression that `drbdadm adjust [resource]' could
> be
> >    run on the node that is secondary (0.7.25), but I am finding that
> not
> >    to work.
> >
> >
> >    I have changed the io error handler from pass_on to panic in the
> >    resource section of drbd.conf and would like the change to take
> >    effect, what needs to be done to get the change in place?
> 
> the "adjust" in 0.7 sometimes just misses some parts of the changes.
> due to an arguably bad design decission on our part, the "on-io-error"
> can only be changed by a new attach. that does only work if you detach
> first. which will happen automatically in drbd 8.0 (and would catch
you
> a full sync, if you do it on a Primary; we need to improve on that,
> so it won't happen "accidentally").
> 
> the best way for you is probably to
> A# drbdadm down XY
> A# drbdadm up XY
> wait for short resync
> switch-over
> B# drbdadm down XY
> B# drbdadm up XY
> 
> --
> : Lars Ellenberg                           http://www.linbit.com :
> : DRBD/HA support and consulting             sales at linbit.com :
> : LINBIT Information Technologies GmbH      Tel +43-1-8178292-0  :
> : Vivenotgasse 48, A-1120 Vienna/Europe     Fax +43-1-8178292-82 :
[Damon Estep] 

Is there any risk making this change on one node (the current
secondary), and then not changing the current primary to secondary and
making the change on it for a couple of days when a maintenance window
exists? Would there be any issues if a failure occurred on the current
primary while the two nodes had different configurations?

Thanks






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