Re: data partition and journal on same disk

Mart van Santen <mart@xxxxxxxxxxxx> · Thu, 17 Dec 2015 12:18:36 +0100

    Hello Dan,

    Yes, this is de default. They are just two partitions. The
    ceph-deploy or ceph-disk prepare commands will create two partitions
    on the disk, one used as journal and one as data partition, normally
    formatted as xfs. In the data partition there is a file 'journal',
    which is a simlink to a journal partition (the UUID of this
    partitinon) (but you can actually point it to any blockdevice you
    want to use as journal). If you want to change the journal to a
    different location, please stop the osd, flush the journal, replace
    the link, prepare the new journal device, start the osd.

    regards.

    mart

    On 12/17/2015 12:12 PM, Dan Nica wrote:

        Hi,

        Can I have data an journal on the same disk
          ? if yes, how ?

        Thanks
        --
        Dan

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Mart van Santen
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