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[dm-devel] About using multipath in SLES 10



Hi,

I guess that I'm missing something:

I started /etc/init.d/multipathd on SLES 10 sp1 and now I see the
following devices:

seed1:~ # multipath -ll
SATA_HDS728080PLA380_PFDB32E8TPKR5Mdm-0 ATA,HDS728080PLA380
[size=77G][features=0][hwhandler=0]
\_ round-robin 0 [prio=1][active]
 \_ 3:0:0:0  sdb 8:16  [active][ready]
3600c0ff000d508d7def2894702000000dm-1 DotHill,R/Evo 2730-2R
[size=82G][features=0][hwhandler=0]
\_ round-robin 0 [prio=1][active]
 \_ 16:0:0:0 sdc 8:32  [active][ready]
\_ round-robin 0 [prio=1][enabled]
 \_ 17:0:0:0 sdd 8:48  [active][ready]
3600c0ff000d508d7dff2894701000000dm-2 DotHill,R/Evo 2730-2R
[size=82G][features=0][hwhandler=0]
\_ round-robin 0 [prio=1][active]
 \_ 18:0:0:0 sde 8:64  [active][ready]
\_ round-robin 0 [prio=1][enabled]
 \_ 19:0:0:0 sdf 8:80  [active][ready]

I understand that sdc & sdd are mapped to dm-1. However, I don't
understand how to use dm-1. For example, I can't run INQUIRY on it:

seed1:~ # sg_inq /dev/dm-1
Both SCSI INQUIRY and fetching ATA information failed on /dev/dm-1

I guess that I'm doing something wrong here... What should I do?

Thanks,
Erez



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