Re: udev names /dev/sd* - what happens if they change ?

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Once OSDs are created by ceph-deploy, ceph udev rules recognise OSDs
by GPT labels of their partitions.  You can see how this happens in
/lib/udev/rules.d/95-ceph-osd.rules (that's the path on an ubuntu
server).

Cheers,
John

On Thu, Jan 30, 2014 at 1:07 PM, Daniel Schwager
<Daniel.Schwager@xxxxxxxx> wrote:
> Hi,
>
> just a small question: Createing a new OSD i use  e.g.
>         ceph-deploy osd create ceph-node1:sdg:/dev/sdb5
>
> Question: What happens if the mapping of my disks changes (e.g. because adding new disks to the server)
>         sdg becomes sgh
>         sdb becomes sdc
>
> Is this handled (how?) by ceph? I cannot find any udev-rules for dev mapping...
> Or is it in my scope to add udev persistent rules ?
>
> thx
> Danny
>
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>
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