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- Newsgroups: comp.os.linux
- Path: sparky!uunet!europa.asd.contel.com!darwin.sura.net!ra!tantalus.nrl.navy.mil!eric
- From: eric@tantalus.nrl.navy.mil (Eric Youngdale)
- Subject: Re: st01 spin-up code, add drive after boot
- Message-ID: <C0JqMH.J3D@ra.nrl.navy.mil>
- Keywords: st01 scsi
- Sender: usenet@ra.nrl.navy.mil
- Organization: Naval Research Laboratory
- References: <C0JnHJ.1Hvz@austin.ibm.com>
- Date: Fri, 8 Jan 1993 17:44:41 GMT
- Lines: 32
-
- In article <C0JnHJ.1Hvz@austin.ibm.com> mwpoag@thurston.austin.ibm.com (Michael Wayne Poag) writes:
- > 1) send the spin-up code to a drive on an st01
- > 2) activate a drive added after boot-up
- >
- >I am running v.98p1 of HJ Lu's distribution
- >The st01 is recognized, and the drive too, but this drive has
- >no jumper for spin-up on power-up...
- >
- >Is there any new scsi code in the newer kernels that would help.
-
- I am not aware of any special scsi command to spin up a drive, so I
- guess the answer is that the newer kernel is unlikely to help you much. I
- grepped the scsi specifications for variations on "Spin up", and came up empty.
- All I can suggest is that you contact the manufacturer and find out what is
- needed - it is possible that there is some kind of drive specific command that
- must be sent before the drive spins up.
-
- Since you have not indicated anything that would suggest otherwise, it
- is also possible that your drive is dead. Older Seagates in particular have
- problems spinning up because (as I recall) the heads get stuck to the platters.
- There is some kind of lubricant that is used internally, but as the drive gets
- old the lubricant gets sticky. If this is the case, then drive replacement is
- strongly recommended. When I ran across this, I was able to get the drive to
- spin up by lightly hitting the drive with a screwdriver handle, but this should
- probably only be done when you are in a position to run a backup of some kind.
- You should also make sure that there is not a spin-up command that needs to be
- sent before you try any of this :-).
-
- -Eric
-
- --
- Eric Youngdale
-