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Ceph Journal Migration
// Ceph
An exemple for migrating journal from file on the default location to a dedicated partition on /dev/sde1.
$ apt-get install hdparm ### Stop osd $ service ceph stop osd.0 ### Flush Journal $ ceph-osd --flush-journal -i 0 ### Create symlink to partition $ rm /var/lib/ceph/osd/ceph-0/journal $ ln -s /dev/sde1 /var/lib/ceph/osd/ceph-0/journal ### Create new journal $ ceph-osd --mkjournal -i 0 $ service ceph start osd.0 ----
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