For the first time I decided to test compability of non-hp branded drives inside of the HP MSA20 array.
First I installed a 500GB SATA2 Seagate drive I had laying around. It detected it perfectly and is working.
The ACU on CentOS 5.5 shows as follows:
Drive Number 1
Drive Unique ID XXXXXXXXXXXXXXXXXXXXXXXXXXX
Size 476908 MB
Fault Tolerance RAID 0
Strip Size 128 KB
Array Accelerator Enabled
Disk Name /dev/cciss/c0d0
I also just populated another bay with a Seagate 2TB SATA2 drive I just found, and it works aswell. ACU reports as follows:
Drive Configuration Type Unassigned
Size 2000.3 GB
Drive Type SATA
Model Seagate ST32000542AS
Serial Number XXXXXXXX
Firmware Version CC34
Keep in mind that no matter what size of drive you have, there is a 32-bit SCSI LUN limitation of under 2TB (I don’t know exactly what it is). Although you can create large arrays, your logical drives will not be able to go over this limitation.