The cpqarrayd is one thing, and it warns you in syslog or SNMP, if something is going wrong. But it is not really informative, if everything is okay.
The tool array-info fills this gap and gives the admininstrator a short overview of the status.

array-info -d /dev/cciss/c0d0 -A
Compaq Smart Array 5i
Firmware revision : 2.66
Rom revision : 2.66
1 logical drive configured.

Logical drive 0 :
Fault tolerance : RAID 1 (Mirroring)
Size : 67.83 GiB (142253280 blocks of 512 bytes)
Status : Logical drive is ok
The cpqarrayd is one thing, and it warns you in syslog or SNMP, if something is going wrong. But it is not really informative, if everything is okay.
The tool array-info fills this gap and gives the admininstrator a short overview of the status.

array-info -d /dev/cciss/c0d0 -A
Compaq Smart Array 5i
Firmware revision : 2.66
Rom revision : 2.66
1 logical drive configured.

Logical drive 0 :
Fault tolerance : RAID 1 (Mirroring)
Size : 67.83 GiB (142253280 blocks of 512 bytes)
Status : Logical drive is ok