I'm trying to help somebody to whom I sold a pair of U320 15k Hitachi SCSI drives to a few months ago. He is using them on an Adaptec 3400S RAID card. He contacted me this week saying that they are stuck at "async 3MB/s" for some indiscernable reason:
i had to go surfing back through heatware to locate your username to PM you. I purchased 2 of said hard drives from you looks like late september. The drives themselves are 80pin units and i am using 80 to 68 pin adapters (might also have been supplied by you). They are detected by my controller and read all the correct SCSI capabilities...however the speed shows "async 3mb/s" - the controller is an adaptec 3400S U160 SCSI RAID. All cables are U320 capable with proper terminators. I have tried all cables i have, all 80 to 68 pin adapters i have, and all possible jumper settings but it still only shows "async 3mb/s" for speed. Adaptec knowledge base points to the 80 to 68 pin adapters as the most likely cause. My other true 68pin 36GB drive is detected at full 160mb/s speed. Any ideas?
Are there any jumpers on the drives themselves? Be sure to take them off. Look on the underside. Also, are there any other drives on the same channel as the Hitachis?
No jumpers anywhere, and each drive is on a seperate channel...made no difference what channel as i switched them around too...changed adapters, cables, etc...same result
Before you sell them ;-) Make a thread and see if any ideas bloom. I'm scratching my head here, but async 3MB/s rings a bell. If not here at [H], try forums.storagereview.net.
Also, does the card have its latest BIOS? And as a last resort, you could (idaresay) reset it to factory defaults, and start from there.
adaptec knowledge base seems to point to the fact the 80 to 68pin adapters might be at fault. card probably does not have latest BIOS and/or firmware so i should try to update that first. Hopefully it doesn't trash the temporary 2 18gb 15k RAID-0 i have setup (still flyin fast). thing is one of these 18GB drives is using the same adapter as i tried on the hitachi drives...the 18gb seagate works fine with it?
Also, a thread he made: http://www.hardforum.com/showthread.php?t=1266341