RAID Xanadu User Manual page 150

For a 2.6 series kernel
Check /proc/scsi/ddX (where X is a, b, c ... as many as number of logical disks assigned to
server).
If a "path-info" line exists only for multiplexed portions of each device and the
"device-info:" Status fields all are "NML", the paths have been multiplexed normally.
* If nothing is displayed, the logical disks in RAID Storage that are assigned to the server
are not being recognized on any access path. Check connections between the server and
RAID Storage, AccessControl settings, and the host bus adapter driver setup.
[Sample display]
When two logical disks are assigned to the server and there are two access paths for each
logical disk
# cat /proc/scsi/sps/dda
device:/dev/dda
disk-info:RAID ,RAID Storage 1000
,xxxxxxxxxxxxxxxx,xxxxx device-info:Host:scsi:2 Channel:0
Id:0 Lun:0 Status:NML LoadBalance:D2
path-info:0 Host:scsi:0 Channel:0 Id:0 Lun:0 Priority:1 Watch:Enable Status:ACT
path-info:1 Host:scsi:1 Channel:0 Id:0 Lun:0 Priority:2 Watch:Enable Status:ACT
#
Figure 13.2.4 PathManager Status Confirmation
3. Confirmation of path patrol daemon
Confirm that the path patrol daemon is running.
If the path patrol daemon is running, the message shown below is displayed.
# /etc/rc.d/init.d/dd_daemon status
dd_daemon (pid XXX) is running ...
#
Figure 13.2.5
(for 2.6 series)
Confirmation of path patrol daemon (for 2.6 series)
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