* Best plan for recovery if disk holding monitor data dies
@ 2012-02-14 1:38 Mandell Degerness
2012-02-14 5:09 ` Sage Weil
0 siblings, 1 reply; 3+ messages in thread
From: Mandell Degerness @ 2012-02-14 1:38 UTC (permalink / raw)
To: ceph-devel
What would you recommend as the best recovery strategy when the disk
holding the monitor data for a given monitor fails?
Should I recover from a periodic back up and re-start the monitor or
should I treat it as a new monitor being added to the cluster? I
suspect the former, but i'd like confirmation. Any information on
gotcha's would be useful as well.
Regards,
Mandell Degerness
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Best plan for recovery if disk holding monitor data dies
2012-02-14 1:38 Best plan for recovery if disk holding monitor data dies Mandell Degerness
@ 2012-02-14 5:09 ` Sage Weil
2012-02-14 17:12 ` Sage Weil
0 siblings, 1 reply; 3+ messages in thread
From: Sage Weil @ 2012-02-14 5:09 UTC (permalink / raw)
To: Mandell Degerness; +Cc: ceph-devel
On Mon, 13 Feb 2012, Mandell Degerness wrote:
> What would you recommend as the best recovery strategy when the disk
> holding the monitor data for a given monitor fails?
>
> Should I recover from a periodic back up and re-start the monitor or
> should I treat it as a new monitor being added to the cluster? I
> suspect the former, but i'd like confirmation. Any information on
> gotcha's would be useful as well.
The simplest is to treat is as a new addition.
sage
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Best plan for recovery if disk holding monitor data dies
2012-02-14 5:09 ` Sage Weil
@ 2012-02-14 17:12 ` Sage Weil
0 siblings, 0 replies; 3+ messages in thread
From: Sage Weil @ 2012-02-14 17:12 UTC (permalink / raw)
To: Mandell Degerness; +Cc: ceph-devel
On Mon, 13 Feb 2012, Sage Weil wrote:
> On Mon, 13 Feb 2012, Mandell Degerness wrote:
> > What would you recommend as the best recovery strategy when the disk
> > holding the monitor data for a given monitor fails?
> >
> > Should I recover from a periodic back up and re-start the monitor or
> > should I treat it as a new monitor being added to the cluster? I
> > suspect the former, but i'd like confirmation. Any information on
> > gotcha's would be useful as well.
>
> The simplest is to treat is as a new addition.
Just to clarify, you should re-add the "new" mon with the same name and IP
as the one that failed. The process is nearly identical, except that
'newname' is 'oldname':
http://ceph.newdream.net/docs/latest/ops/manage/grow/mon/
sage
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2012-02-14 17:12 UTC | newest]
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2012-02-14 1:38 Best plan for recovery if disk holding monitor data dies Mandell Degerness
2012-02-14 5:09 ` Sage Weil
2012-02-14 17:12 ` Sage Weil
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