Originally Posted by hicksd8

Yep, "mrsas" means it's a LSI Megaraid SAS card.

The drives are type SAS.

It's an add-in card. That's why you can't see the drives.

---------- Post updated at 08:17 PM ---------- Previous update was at 08:15 PM ----------

This probably means that the two drives you can see are in a mirrored pair and the others are unallocated (and not published to the host at all).

---------- Post updated at 08:19 PM ---------- Previous update was at 08:17 PM ----------

Whenever this was delivered to your site there should have been manuals and software with it. Can you go find them??

---------- Post updated at 08:22 PM ---------- Previous update was at 08:19 PM ----------

Let me put it this way; between the disks and the Sun box there's a BIG chunk of electronics which is deciding how things are configured and what the Sun box sees and does not see.

---------- Post updated at 08:50 PM ---------- Previous update was at 08:22 PM ----------

What's likely here is that the drives (you can't see) were configured as a raid0 array (that's striping with no resilience) and when one drive went off-line (the one without the green light) the card took the array offline.

It is possible that if you shutdown (volts completely off) and cold boot (with the failed drive re-seated) it may recover. Alternatively, LSI software often includes an option to "mark the drive online". If you can do that to the failed drive it may recover. Otherwise, use the LSI software to configure a new array (raid0, raid3 raid5 or raid10) and publish a LUN to the host box.

Hope that helps.

---------- Post updated at 09:02 PM ---------- Previous update was at 08:50 PM ----------

Another thought is; you are showing 2 x 298GB drives. It is possible that you have two 298GB arrays configured. If they were raid5 then it could withstand one drive going offline. You might have 8 x 60GB or 8 x 80GB drives configured as two arrays of 4 drives. Have you tried creating some disk traffic on each "drive" and see which drive lights flash??