Paul G. Allen wrote:
First SCSI drive to fail in many years (first one ever that I have
purchased new). It's an IBM drive that I bought new sometime around the
year ~2000.
Long story short, it's my server and rarely ever gets turned off. I
turned it off during the hot weather to save on the A/C bill. When I
powered it up again, the drive will not spin up. The controller sees it,
tries to tell it to start, it won't listen.
Anyone have any ideas that might get it spinning again? Anyone got a
reliable, cheap 36GB Ultra160 drive - cheap? (yes, I did say cheap
twice :) )
PGA
Most likely, you have no lubricant left in the spindle bearings.
Temperature differentials are called for. Cooling or heating depending
upon the materials in the drive shaft vs. drive bearings. Try both.
If the whole cool/hot things doesn't work (don't do this until you've
tried the hot/cold thing!), put the drive in and power it on but don't
mount it in the case. Now, hold the drive such that the spindle axis is
almost inline with your forearm axis. Use your wrist to quickly snap
the drive back and forth around the spindle axis. The inertia of the
platter should hold the platters in place while the sudden acceleration
of the drive case should break the spindle loose. As soon as the
spindle breaks loose the drive should spin up.
DO NOT DO THIS UNTIL YOU HAVE TRIED THE HOT/COLD THING!
You are applying very significant acceleration to the drive. If
everything works, the platters shouldn't get much acceleration at all
and the head should still be parked (so it should be okay). If,
however, the head is frozen in the wrong spot, your will likely toast
your drive.
My record doing this is 3 drives recovered (one spun up so hard that it
almost pulled itself out of my hand due to gyroscopic moment) and 1 head
crash (the drive actually spun up and then made a *godawful* noise).
You have been warned!
-a
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