I have a somewhat new server that I am using for Exchange with a Raid 5 setup. It has 3 Seagate ST3500320AS, with firmware SD15. These seem to have quite a reputation of dying on the job. Well what I have been seeing is that one of these hard drives will degrade the raid about a week or 2 after a reboot, and I can rebuild the raid and things are ok until the next reboot. I will get the error in the event viewer from iastore: The device \Device\Ide\iaStore0 did not respond within the timeout period. Then after a rebuild it will be ok as long as I don't do a reboot. This has happened 3 times now, and I think my luck may run out.
These drives are still under warranty, but it seems that they have to be dead before they get replaced. I haven't found any information if the firmware upgrade actually solves the problem of these drives, and I really haven't found a tool to test drives thoroughly while in a raid setup.
Also the Intel Matrix controller is at ver 7.5 which was supposed to have fixed the iastore problem too. I am looking for some advice on how to fix this problem. The last time the raid broke it brought the server down. I am afraid it won't come up again next time. Thanks!