Sun StorageTek 5320C NAS, SNMP and hot spare

Question

Hello,
We have 5320 NAS cluster system, and one Controller Unit with 16 FC 300 GB hard drives. Drives are as follows:
from 1 to 8 hard drive -> RAID5
from 9 to 15 had drive -> RAID5
16 hard drive -> Global hot spare
SNMP query for hard disk status:
$ snmpwalk -O n -v 2c -m "/home/nierka/st5320c_.mib" -c <comunity_not_shown> <IP_not_shown> st5320CRaidPhysicalDriveStatus
.1.3.6.1.4.1.42.2.28.13.3.16.1.2.3.4.1.3.1.2.2 = INTEGER: online(4)
.1.3.6.1.4.1.42.2.28.13.3.16.1.2.3.4.1.3.1.2.3 = INTEGER: online(4)
.1.3.6.1.4.1.42.2.28.13.3.16.1.2.3.4.1.3.1.2.4 = INTEGER: online(4)
.1.3.6.1.4.1.42.2.28.13.3.16.1.2.3.4.1.3.1.2.5 = INTEGER: online(4)
.1.3.6.1.4.1.42.2.28.13.3.16.1.2.3.4.1.3.1.2.6 = INTEGER: online(4)
.1.3.6.1.4.1.42.2.28.13.3.16.1.2.3.4.1.3.1.2.7 = INTEGER: online(4)
.1.3.6.1.4.1.42.2.28.13.3.16.1.2.3.4.1.3.1.2.8 = INTEGER: online(4)
.1.3.6.1.4.1.42.2.28.13.3.16.1.2.3.4.1.3.1.2.9 = INTEGER: online(4)
.1.3.6.1.4.1.42.2.28.13.3.16.1.2.3.4.1.3.1.2.10 = INTEGER: online(4)
.1.3.6.1.4.1.42.2.28.13.3.16.1.2.3.4.1.3.1.2.11 = INTEGER: online(4)
.1.3.6.1.4.1.42.2.28.13.3.16.1.2.3.4.1.3.1.2.12 = INTEGER: online(4)
.1.3.6.1.4.1.42.2.28.13.3.16.1.2.3.4.1.3.1.2.13 = INTEGER: online(4)
.1.3.6.1.4.1.42.2.28.13.3.16.1.2.3.4.1.3.1.2.14 = INTEGER: online(4)
.1.3.6.1.4.1.42.2.28.13.3.16.1.2.3.4.1.3.1.2.15 = INTEGER: online(4)
.1.3.6.1.4.1.42.2.28.13.3.16.1.2.3.4.1.3.1.2.16 = INTEGER: online(4)
$
Where is hot spare status "stand by(5)"? Using "raidctl" command we get these lines:
head1 > raidctl get type=lsi target=profile ctlr=0
........<cut>...........
Total hot spare drives: 1
Standby: 1
In use: 0
........<cut>...........
Why SNMP can't get hot spare status? Where to report this issue? Thanks in advice.
Nerijus

Answer 1

Thanks.
To answer your question, the disk FW upgrade doesn't erase/destroy the data. However the disk FW upgrade can ONLY be done while there is NO IO activity, hence you need to stop the IO before proceeding with such upgrade.
As for the FW, it seems that your drive has the FW 0892 which is a newer FW than what your CAM version has (0791). The FW 0891 was supported with CAM 6.0 + patches. Starting from CAM 6.1.0_15 we introduced the FW 0B92.
The recommendation is to upgrade CAM to 6.4.1, then you will get an alarm because your drive will have 0892 whereas CAM brings 0B92, however you can plan a maintenance window at your convenience in order to upgrade the drive FW.
Regards
Nicolas