HI Cephers,
I have an other question related to this issue, What would be the procedure to restore a server fail (a whole server for example due to a mother board trouble with no damage on disk).
Regards, I
2014-10-15 20:22 GMT+02:00 Daniel Schwager <Daniel.Schwager@xxxxxxxx>:
Loic,
> > root@ceph-node3:~# smartctl -a /dev/sdd | less
> > === START OF INFORMATION SECTION ===
> > Device Model: ST4000NM0033-9ZM170
> > Serial Number: Z1Z5LGBX
> >
..
> > admin@ceph-admin:~/cluster1$ emacs -nw ceph.conf
> > [osd.16]
> > ...
> > devs = /dev/disk/by-id/scsi-SATA_ST4000NM0033-9Z_Z1Z5LGBX-part1
> >
>
> I'm curious about what this is used for.
The "normal" device path /dev/sdd1 can change dependent on the amount/order of disks/controllers. So, using the scsi-path (containing the serial number) is always unique:
root@ceph-node3:~# ls -altr /dev/sdd1
brw-rw---T 1 root disk 8, 49 Okt 15 10:06 /dev/sdd1
root@ceph-node3:~# ls -altr /dev/disk/by-id/scsi-SATA_ST4000NM0033-9Z_Z1Z5LGBX-part1
lrwxrwxrwx 1 root root 10 Okt 15 10:06 /dev/disk/by-id/scsi-SATA_ST4000NM0033-9Z_Z1Z5LGBX-part1 -> ../../sdd1
regards
Danny
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Iban Cabrillo Bartolome
Instituto de Fisica de Cantabria (IFCA)
Santander, Spain
Tel: +34942200969
Iban Cabrillo Bartolome
Instituto de Fisica de Cantabria (IFCA)
Santander, Spain
Tel: +34942200969
PGP PUBLIC KEY: http://pgp.mit.edu/pks/lookup?op=get&search=0xD9DF0B3D6C8C08AC
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Bertrand Russell:
"El problema con el mundo es que los estúpidos están seguros de todo y los inteligentes están llenos de dudas"
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Bertrand Russell:
"El problema con el mundo es que los estúpidos están seguros de todo y los inteligentes están llenos de dudas"
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