Comment 6 for bug 1416855

Revision history for this message
Dmitriy Novakovskiy (dnovakovskiy) wrote : Re: [Bug 1416855] Re: Ceph OSD disks are lost at node reboot

Then this needs to be reviewed by Miroslav. He first observed this problem at
customer installation

On Monday, February 9, 2015, Ryan Moe <email address hidden> wrote:

> This is how Fuel has deployed Ceph since the feature was added.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1416855
>
> Title:
> Ceph OSD disks are lost at node reboot
>
> Status in Fuel: OpenStack installer that works:
> In Progress
>
> Bug description:
> In one of customer deployments we faced the situation when host OS
> kernel would initialize multiple backplanes with disks in random order
> at boot time. This causes OSD disks that Fuel deployed w/ ceph-deploy
> utility to be lost from OSD after node reboot, since they were mounted
> via /dev/sdXXX pointers and these numbers become different at every
> boot.
>
> The solution is to mount OSD disks using UUID instead of sdXXX names.
> It's needs to be checked whether ceph-deploy utility can do it (so
> Fuel could just pass additional parameter) or a more sophisticated
> approach is needed to solve this problem.
>
> The following document describes the manual OSD management steps for
> the deployment where we first found this: http://goo.gl/SPZGFC. Also,
> Miroslav Anashkin (<email address hidden> <javascript:;>) has detailed
> context
>
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>

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Regards,

*Dmitriy Novakovskiy*
Sr. Sales Engineer, Mirantis EMEA

*Skype:* dmitriy.novakovskiy
*Operating from:* Ukraine