offline /sys/class/scsi_device/*/device/state

[Yong Huang <yong321@xxxxxxxxx>]

This is Red Hat 4. We use IBM's sdd (Subsystem Device Driver) for device 
multipath. Note the degrade state below:

# datapath query adapter

Active Adapters :2

Adpt#         Name   State     Mode     Select     Errors  Paths  Active
   0 Host0Channel0  DEGRAD   ACTIVE  1065540982         30     28      23
   1 Host1Channel0  DEGRAD   ACTIVE  1021183874         30     28      22

and some SCSI devices' state is offline:

# find /sys/class/scsi_device/*/device/state -exec grep offline {} /dev/null \;
/sys/class/scsi_device/0:0:1:11/device/state:offline
/sys/class/scsi_device/0:0:1:12/device/state:offline
/sys/class/scsi_device/0:0:1:13/device/state:offline
/sys/class/scsi_device/1:0:0:10/device/state:offline
/sys/class/scsi_device/1:0:0:11/device/state:offline
/sys/class/scsi_device/1:0:0:12/device/state:offline
/sys/class/scsi_device/1:0:0:13/device/state:offline

Storage is provided by HP. Running commands `hp_rescan -a' followed by 
`cfgcpath' made no difference.

Fortunately, the software running on the box, i.e. Oracle database, has 
no problem. But I wonder if something is wrong and potentially can cause 
issues. Thanks.

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