[comp.sys.ibm.pc] ST277R-1,ST11R,XT Clone

leeb@conan.SanDiego.NCR.COM (Lee Brose) (11/30/89)

About three months ago I installed a SEAGATE ST277R-1 and a SEAGATE ST11R
controller on my XT Clone.  The installation went without a problem and
until recently I've had no problems.  Something strange has been happening
the last few weeks.  When the system is up with no activity to the HD, it
will make noises as if the heads are being moved.  The access light does
not come on.  I haven't noticed any pattern as to when and how often
it occurs.  Also I've had no data destroyed that I'm aware of and
every thing works normally when the HD is used.

Can anyone shed some light on what is happening? I've written to SEAGATE
but have  received no response yet. 


			LeeBrose@sandiego.NCR.COM

plim@hpsgpa.HP.COM (Peter Lim) (12/01/89)

This is not likely but give it a go anyway:

If you ever use a Bernoulli Box (from IOMEGA) you'll know that their
drives make tiny ticking sound a few seconds after the last disk access.
This is supposed to be random skating to reduce wearing of disk at one
particular sport (c.f. if the disk head were to stay still at one place).

But then, this is the Bernoulli disk and I think shouldn't apply to
winchester disk. But then again ....... you never know.


Regards,
Peter Lim.
HP Singapore IC Design Center.

      E-mail address:              plim@hpsgwg.HP.COM
      Snail Mail address:          Peter Lim
                                   Hewlett Packard Singapore,
                                   (ICDS, ICS)
                                   1150, Depot Road,
                                   Singapore   0410.
      Telephone:                   (065)-279-2289

huilin@hpindda.HP.COM (Hui-Lin Lim) (12/02/89)

The last time something like this happened to me it was with a
Miniscribe 3425.  What caused it was the failure of the
electronics on the drive itself and was temperature sensitive.

My suggestion would be to back up all your data frequently as the
next thing you are likely to see is "Drive not ready - abort,
retry, ignore".

This assumes that you don't have any disk caching or parking
utilities installed.  The fix?  Send the disk in for repair.


Hui-Lin Lim
ARPA: huilin%hpinddf@hplabs.hp.com
UUCP: {ucbvax,hplabs}!hpinddf!huilin
Phone:  (408)447-2835

ngeow@bu-cs.BU.EDU (Yee Ngeow) (12/06/89)

In article <40970024@hpindda.HP.COM> huilin@hpindda.HP.COM (Hui-Lin Lim) writes:
>[Stuff about hard disk moving heads when no activity deleted]
>The last time something like this happened to me it was with a
>Miniscribe 3425.  What caused it was the failure of the
>electronics on the drive itself and was temperature sensitive.
>
>My suggestion would be to back up all your data frequently as the
>next thing you are likely to see is "Drive not ready - abort,
>retry, ignore".
>
>This assumes that you don't have any disk caching or parking
>utilities installed.  The fix?  Send the disk in for repair.
>

Funny, the Seagate ST-02/ST-157N combination also makes noise, as if
it is moving the heads to a different location (no lights, though). I 
would double check with the Seagate Tech support. Seems like the Seagate
controller is doing something intentionally. Anyone with the same 
experience?

Kwong


>
>Hui-Lin Lim
>ARPA: huilin%hpinddf@hplabs.hp.com
>UUCP: {ucbvax,hplabs}!hpinddf!huilin
>Phone:  (408)447-2835