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Checking Disk Array status in AIX

This AIX server has a disk array connected.

root@aix:/ # lscfg -vl hdisk2
hdisk2           U0.1-P2-I3/Z3-A0  SCSI RAID 5 Disk Array

The array has 7 physical disks
root@aix:/ # lsdev -C | grep pdisk

pdisk0         Available 1A-08-01-0,0  Physical SCSI Disk Drive
pdisk1         Available 1A-08-01-1,0  Physical SCSI Disk Drive
pdisk2         Available 1A-08-01-2,0  Physical SCSI Disk Drive
pdisk3         Available 1A-08-01-3,0  Physical SCSI Disk Drive
pdisk4         Available 1A-08-01-4,0  Physical SCSI Disk Drive
pdisk5         Available 1A-08-01-5,0  Physical SCSI Disk Drive
pdisk6         Available 1A-08-01-6,0  Physical SCSI Disk Drive

Connected through a PCI-X SCSI RAID adapter
root@aix:/ # lscfg -vl sisioa0

sisioa0          U0.1-P2-I3  PCI-X Dual Channel U320 SCSI RAID Adapter
PCI-X Dual Channel Ultra320 SCSI RAID Adapter:
Part Number……………..97P3960
FRU Number………………97P3960
Serial Number……………YL10C4077074
Manufacture ID…………..000C
EC Level………………..0
ROM Level.(alterable)…….0709000c
Product Specific.(Z0)…….5703
Product Specific.(Z1)…….1
Device Specific.(YL)……..U0.1-P2-I3

When we checked the status we saw that the array was running in degraded state.
root@aix:/ #sisraidmgr -L -j1 -l sisioa0

————————————————————————
Name      Location      State       Description        Size
————————————————————————
sisioa0   1A-08         Available   PCI-X Dual Channel U320 SCSI RAID Adapter
scsi2    1A-08-00-07,0 NoLink      No remote adapter target
scsi3    1A-08-01-07,0 NoLink      No remote adapter target
hdisk2    1A-08-ff-0,0  Degraded RAID 5 Array     428.0GB
pdisk0   1A-08-01-0,0  Active      Array Member      71.4GB
pdisk1   1A-08-01-1,0  Active      Array Member      71.4GB
pdisk2   1A-08-01-2,0  Active      Array Member      71.4GB
pdisk3   1A-08-01-3,0  Active      Array Member      71.4GB
pdisk4   1A-08-01-4,0  Active      Array Member      71.4GB
pdisk5   1A-08-01-5,0  Active      Array Member      71.4GB
pdisk6   1A-08-01-6,0  Active      Array Member      71.4GB
hdisk0    1A-08-00-10,0 Available   16 Bit LVD SCSI  146.8GB
hdisk1    1A-08-00-11,0 Available   16 Bit LVD SCSI  146.8GB

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