RAID Peoblem

[ebcd]

I am running an Adaptec 2410 with 3 Seagate 120GB SATA HDDs (RAID 5). Problem is every now and then the RAID controller will sense one of these HDD to be offline and sound the alarm. But when I restart the server and check in the RAID controller's BIOS, the faulty HDD will become "online" again and the controller automatically doing a rebuild on the RAID.

At one time, while one HDD was reported offline within the Adaptec storage manager software. A rescan on the drives will get the offline HDD back online?

Running out of ideas, please help.

 

[stduc]

Re-seat all connections.

Run diagnostics on the discs. Either the manufacturers, or something like spinrite. You will need to connect the drives to an ordinary IDE channel to do this.

I would suspect either the controler or the disc(s) are developing a fault. (If a re-seat doesn't fix it)

 

[ebcd]

Thanks for the reply stduc,

I've changed the cables at least 3 times already.....
Have also ran Seagate's HDD check and all HDD checked to be fine.....

 

[stduc]

You seem to have eliminated the drives as the problem. That leads me to suspect the Adaptec 2410.

However, before the controllor gets the blame, I would verify that the power supply is more than adequate and I would check that the drives aren't running hot when under load.

 

[ebcd]

2x 80mm intake fan are installed in front of the drives.
The PSU is a good 550W, I'll try to stress test the system with a new PSU tonight.