On Sun, Aug 25, 2013 at 11:55 AM, Johannes Klarenbeek <
johannes.klarenb...@rigo.nl> wrote:

>  Dear ceph-users,****
>
> ** **
>
> I’m trying to get the ceph monitor use a exclusive partition on my ssd
> drive. However, how should I prepare it? ****
>
> I want to do something like this:****
>
> ** **
>
> Ceph-deploy mon create mynode --mon-data /dev/sda5 ****
>
> ** **
>
> Or****
>
> ** **
>
> Ceph-deploy mon create mynode:/dev/sda5****
>
> ** **
>
> /dev/sda5 is a 16GB partition on a 120GB ssd with mbr-ext2(???)  formatted
> how should I continue… ****
>
> ** **
>
> Also****
>
> ** **
>
> When preparing the OSD’s with a single dedicated platter disk per OSD like
> so:****
>
> ** **
>
> Ceph-deploy disk zap mynode:/dev/sdd****
>
> ** **
>
> And there is a corrupted GPT table (yes, I can do that :S ) a error is
> shown but the disk is not prepared.****
>
> Its not really clear what I’m zapping the disk with either ie: mbr/gpt and
> ext4,xfs or btrfs… it seems that fdisk doesn’t understand gpt, but disk zap
> tries to create a gpt table on it. I don’t think its really necessary for a
> 2TB to use GPT.****
>
> ** **
>
> Its not clear whether or not a disk is zapped when using ceph-deploy osd
> prepare or ceph-deploy osd create either…
>

It is not zapped unless you specify it with the `--zap-disk` argument.

> ****
>
> ** **
>
> Then the journal for the osd disks can be set with something like ****
>
> Ceph-deploy osd prepare mynode:/dev/sdd:/dev/sda6****
>
> ** **
>
> But can I do this?
>

That should work given that the disk and journal info is correct, have you
tried and failed? or you just want to make sure?


> Or should I first mount it to the /var/lib/ceph/osd directory somewhere..
>

I don't think you need to do this


> and what about formatting…
>
****
>
> ** **
>
> Can anyone clarify that for me?****
>
> ** **
>
> Regards,****
>
> Johannes****
>
>
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> viruskenmerken 8726 (20130825) __________
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