Re: SCSI disk spin-down/up
Albert Cahalan (albert@ccs.neu.edu)
Tue, 27 Feb 1996 15:10:47 -0500 (EST)
>>>Always spindown after 26 hours without an access.
>>>Spindown after 1 hour if the last access was umount.
>
>> You still run across the problem that the disks must be spun up at boot
>> time to read the partition table.
>>
>> Can someone point me at the existing broken patches that were alluded
>> to on sunsite? I would at least like to see if this is a useful
>> starting point.
>
> FWIW, I've *killed* a couple of drives by doing an idle spindown on my BBS.
> One in particular--it worked ok for years of 24x7. Worked ok for months in
> the BBS, also 24x7. Then I added a 2 hour idle spindown. Within a few
Here is the problem ^^^^^^
> months--it would no longer spin up unless I shake it. Evidently, being
> spundown for extended periods of time, with power still on caused the
> dreaded "stiction" problem. Granted, this was an old drive (an 80MB
> Quantum SCSI), but still.........
Is spindown any worse than reboot to DOS, hard reset, and power off?
Most people do (some of) these things every day.
At 26 hours, I do not think a BBS would spin down the disks.
You can always change that to 720 hours or disable it.
For most people, 26 hours is good.