SUMMARY: Format.dat for Seagate SN11200N

From: Ron Rusnak (ronr@teddybear.uchicago.edu)
Date: Fri Apr 09 1993 - 18:09:54 CDT


> Subject: Format.dat for Seagate SN11200N
>
> Does anyone have a format.dat for a Seagate SN11200N 3 1/2 inch 1
> Gigabyte disk?
>
> I will summarize to the list.
>

It appears that the normal SUN1.05 format.dat will work.

I would like to thank the following folks who answered my query:
Julie R. Bruce
Sam Horrocks
Eric Pearce

----------------------------------------------------------------------
disk_type = "SUN1.05" \
        : ctlr = SCSI : fmt_time = 4 \
        : ncyl = 2036 : acyl = 2 : pcyl = 2038 : nhead = 14 : nsect = 72 \
        : rpm = 5400 : bpt = 43200

partition = "SUN1.05_PREINSTALL" \
        : disk = "SUN1.05" : ctlr = SCSI \
        : a = 0, 66528 : b = 66, 133056 : c = 0, 2052288 : g = 198, 1008000 \
        : h = 1198, 844704

        Julie R. Bruce
        AVCOM Systems
        573 Maude Court
        Sunnyvale, CA 94086
        (408) 733-5000 ext. 218
        julie@Avcom.COM

----------------------------------------------------------------------
I just got mine working today. I was thrown off by the fact that Seagate
is decptive about the size of their disks. When they say MB they mean
millions of bytes (1000^2) instead of megabytes (1024^2) which is what
everyone else uses, and consequently I was making the number of cylinders
too large.

--> Sams response to my pointing out that SUN1.05 is really the same
--> drive as the SN11200.
.. I saw that one, but didn't know it was the same drive. My geometry
.. actually produces about 2M more space, but I suppose I should switch
.. to the standard Sun entry just for future compatibility.

Here's the entry I was able to use:

disk_type = "Seagate ST11200N" \
        : ctlr = SCSI : fmt_time = 4 \
        : trks_zone = 15 : asect = 12 : atrks = 30 \
        : ncyl = 1714 : acyl = 1 : pcyl = 1715 : nhead = 15 : nsect = 80 \
        : rpm = 5411 : bpt = 40960

partition = "Seagate ST11200N" \
        : disk = "Seagate ST11200N" : ctlr = SCSI \
        : a = 0, 2056800 : b = 0, 0 : c = 0, 2056800 : g = 0, 0

-- 
Sam Horrocks
ICS Department, UC Irvine
Email: sam@ics.uci.edu

-------------------------------------------------------------------------- This is the same disk used in the Sparc 10. From the 4.1.3 format.dat:

disk_type = "SUN1.05" \ : ctlr = SCSI : fmt_time = 4 \ : ncyl = 2036 : acyl = 2 : pcyl = 2038 : nhead = 14 : nsect = 72 \ : rpm = 5400 : bpt = 43200

partition = "SUN1.05" \ : disk = "SUN1.05" : ctlr = SCSI \ : c = 0, 2052288

I've got one stuck in an IPC -- works great. -- Eric Pearce | eap@ora.com | O'Reilly & Associates Publishers of Nutshell Series Handbooks and X Window System Guides 103 Morris St, Sebastopol, CA 95472 1-800-998-9938 or 707-829-0515



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