Hello cephers,

is anyone using Fujitsu Hardware for Ceph OSDs with the PRAID EP400i
Raidcontroller in JBOD Mode? We are having three identical servers with
identical Disk placement. First three Slots are SSDs for journaling and
remaining nine slots with SATA Disks. Problem is, that in Ubuntu (and I
would guess in any other distribution as well) the disk paths for the same
physical drive slot differ between the three servers. For example on Server
A first disk is identified as "pci-0000:01:00.0-scsi-0:0:14:0" and as
"pci-0000:01:00.0-scsi-0:0:17:0" on the other. This makes provisioning osds
nearly impossible. Anyone ran into the same issue an knows how to fix this?
Fujitsu support couldn't help (in fact they did not know, that you can put
the controller in JBOD mode ...). I actvated JBOD via the "Enable JBOD"
option in the controller management menu of the praid ep400i raid

Cheers Felix

Felix Stolte
E-Mail: f.sto...@fz-juelich.de
Internet: http://www.fz-juelich.de

Forschungszentrum Juelich GmbH
52425 Juelich
Sitz der Gesellschaft: Juelich
Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498
Vorsitzender des Aufsichtsrats: MinDir Dr. Karl Eugen Huthmacher
Geschaeftsfuehrung: Prof. Dr.-Ing. Wolfgang Marquardt (Vorsitzender),
Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt,
Prof. Dr. Sebastian M. Schmidt

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