On Mar 30, 2010, at 9:32 PM, Brian Fuelleman wrote:
You might try disassembling them and checking the interior for signs of wear.
Huh? Disassembling a SCSI HD? NOT!
It might tell you what is rubbing and causing the squeak, you may be able to realign it or lubricate the offending area. If it requires lubricating then I wouldn't put much hope in the drive(s) lasting that long.
Lubricating HDs? This is crazy talk, there's no such thing as lubricating HDs.
You might consider talking to the manufacturer, tell them what you just purchased and what the issues are, you may be able to get replacements for little or no money. Couldn't hurt to ask.
You don't seem to understand this issue at all. These 9GB SCSI HDs are likely old server HDs that are used, and have little or no value, as he said, the cost of shipping the drives is more than he paid for them. No manufacturer is going to do anything.
On Mar 31, 2010, at 12:35 AM, Mark Sokolovsky wrote:
Sqeaky drives sometimes have to do something with the ball bearing. Like the other guy said, check to make sure the ball bearings and everything else is not rusted or weathered in some way.
There are NO BALL BEARINGS in HDs. They are fluid bearings, or air bearings. Ball bearings in HDs were one of the early FAILURES and are no longer used.
On Mar 30, 2010, at 8:36 PM, geno.y wrote:
Both new drives make a squeaky sound, sort of like a squeaky wheel. It’s consistent, happens every 35 seconds or so.
So let's think about this. The HD is 10,000 RPM, so it's spinning 167 times per second, or about 5,800 times in 35 seconds. Seems kinda unlikely that this once every 35 second squeak is a mechanical noise, at least not in any conventional sense. I think it's GOOD that it's consistent and repeatable. I'd be more worried about noises that are irregular and random.
Almost all SCSI HDs are noisy to begin with, they run hot, and they're made to be bombproof, that's why they cost so much NEW in comparison to PATA/SATA HDs. As USED items, they're practically free because they're available in large quantities and there is little demand. Either use the HDs with the noise, or don't use them and recycle them. SCSI HDs normally fail by overheating, which means that you can let them cool, and then salvage all the data off of them before retiring them.
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