CephFS: determine a file location
Quick tip to determine the location of a file stored on CephFS.
To achieve that we simply need the inode number of this file.
For this we will be using
stat, just like this:
$ stat -c %i /mnt/blah
Now we get the hex format of the inode:
$ printf '%x\n' 1099511627776
Eventually, we search across our OSD directories:
$ sudo find /var/lib/ceph/osd -name 10000000000*
Tada! That’s all!