You can access offline OSD using ceph-objectstore-tool which allows to
enumerate and access specific objects.
Not sure this makes sense for any purposes other than low-level
debugging though..
Thanks,
Igor
On 6/28/2018 5:42 AM, Yu Haiyang wrote:
Hi All,
Previously I read this article about how to locate an object on the
OSD disk.
Apparently it was on a FileStore-back disk partition.
Now I have upgraded my Ceph to Luminous and hosted my OSDs on
BlueStore partition, the OSD directory structure has completely changed.
The data is mapped to a block device as below and that’s as far as I
can trace.
/lrwxrwxrwx 1 ceph ceph 93 Jun 24 17:03 block ->
/dev/ceph-0ec01ce9-d397-43e7-ad62-93cd1c62f75a/osd-block-f590b656-e40c-42f7-8cf9-ca846632d046/
Hence is there still a way to pinpoint an object on a BlueStore
disk partition?
Best,
Haiyang
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