[comp.sys.sun] Help with Sun 3/60 + Maxtor XT-8760S

tro@uunet.uu.net (Tom Olin) (04/26/89)

I am trying to format a Maxtor XT-8760S (760MB) drive on a Sun 3/60
(version 3.5 SunOS), without success.  My documentation specifies the
following disk geometry:

		1632 cylinders
		  15 data heads
		  54 sectors/track

I have danced several numbers with diag (a typical example would be 1620
ncyl, 2 acyl, 15 head, 54 sectors, 1 interleave) but format always throws
up on it.  If I tell diag that the drive is a Micropolis 1558, it formats
fine.  (Of course, I lose a few hundred MB in the process.)

If anybody has successfully formatted one of these drives, I would love to
hear from you.

Tom Olin	PAR Technology Corp.	(315) 738-0600
...!uunet!adiron!tro

neil@uunet.uu.net (Neil Gorsuch) (05/08/89)

In article <405@adiron.UUCP> adiron!tro@uunet.uu.net (Tom Olin) writes:
>X-Sun-Spots-Digest: Volume 7, Issue 250, message 7 of 13
>I am trying to format a Maxtor XT-8760S (760MB) drive on a Sun 3/60
>(version 3.5 SunOS), without success.

We don't sell Maxtor 8760S drives (the CDC's are cheaper and have worked
very well for us), but I have been told to use the following: 1626 data
cylinders, 2 spare cylinders, 1632 physical cylinders, 15 heads, 53
sectors per track.  There is a jumper on many disk drives that chooses
between 1 more or less sector per track, you might check the the Maxtor
has one, and set it to 53 sectors per track if so.  I seem to recall a bug
in earlier version of Sunos that wouldn't allow more than 1400 or so
cyulinders, but maybe it's fixed now.

Neil Gorsuch
Uninet Peripherals
neil@cpd.com
uunet!zardoz!neil
(800) 433-6784 outside California
(714) 546-1100 inside California