Sorry for the delay in posting a summary, but my drive was delayed in
shipment, and I just got it hooked up this weekend.
I wrote:
> Sorry to bother the list with such a mundane request, but Sun-Spots
> seems off-the-air at the moment, and my Sparc will arrive much
> sooner than expected. I have a Fujitsu M2263SA SCSI disk (669mb),
> but have been unable to find a format.dat entry locally. Could
> someone please mail me one.
I received numerous responses, many differing in not insubstantial
ways. Apparently the M2263SA was set up differently by different
vendors, in particular the number of sectors per track. Also everyone
seemed to be using different numbers for ncyl and pcyl. Not having
had experience with SunOS 4.[01], I didn't realize that a format.dat
entry is not necessary to initially format a disk; you really only
need the basic geometry numbers.
Here is the one I decided to use, compliments of jdd@db.toronto.edu:
disk_type = "Fujitsu M2263SA" : ctlr = MD21 \
: ncyl = 1648 : acyl = 2 : pcyl = 1650 : nhead = 15 : nsect = 53 \
: asect = 3 : trks_zone = 15 : atrks = 30 \
: rpm = 3600 : bpt = 31296 \
: cache = 0x11 \
: skew = 2 : precomp = 1650
The only question that remains is whether the read-ahead cache should/must
be disabled under 4.1.1b. I didn't do that, and haven't encountered any
problems yet.
Further responses follow:
Entries with nsect=52
++++++++++++++++++++++
disk_type = "Fujitsu M2263SA" \
: ctlr = MD21 : fmt_time = 2 \
: ncyl = 1648 : acyl = 2 : pcyl = 1654 : nhead = 15 : nsect = 52 \
: rpm = 3600 : bpt = 31296
--------------
disk_type = "Fujitsu 2263" \
: ctlr = MD21 : fmt_time = 6 \
: ncyl = 1656 : acyl = 2 : pcyl = 1658 : nhead = 15 : nsect = 52 \
: rpm = 3600 : bpt = 27136
---------------
disk_type = "Fujitsu-M2263SA" \
: ctlr = MD21 \
: ncyl = 1658 : acyl = 0 : pcyl = 1658 : nhead = 15 : nsect = 52 \
: rpm = 3600 : bpt = 31296
---------------
Entries with nsect=53
++++++++++++++++++++++
disk_type = "Fujitsu M2263SA" : ctlr = MD21 \
: ncyl = 1648 : acyl = 2 : pcyl = 1650 : nhead = 15 : nsect = 53 \
: asect = 3 : trks_zone = 15 : atrks = 30 \
: rpm = 3600 : bpt = 31296 \
: cache = 0x11 \
: skew = 2 : precomp = 1650
---------------
disk_type = "CRANEL-M2263SA" \
: ctlr = MD21 \
: ncyl = 1646 : acyl = 2 : pcyl = 1648 : nhead = 15 : nsect = 53 \
: rpm = 3600 : bpt = 31296
-------------
Entries with nsect=66
++++++++++++++++++++++
disk_type = "Fujitsu M2263S" \
: ctlr = MD21 : fmt_time = 4 \
: cache = 0x11 : trks_zone = 15 : asect = 3 \
: ncyl = 1655 : acyl = 2 : pcyl = 1657 : nhead = 12 : nsect = 66 \
: rpm = 3600 : bpt = 31296
Special thanks to ETXFRICK@eds.ericsson.se, who provided a summary
he compiled about the M2263SA. And thanks to the following people:
seeger@manatee.cis.ufl.edu (F. L. Charles Seeger)
roberto@minerva.phyast.pitt.edu (Roberto Gomez)
Kenton C. Phillips <kenton@space.mit.edu>
John Valdes <valdes@geosun.uchicago.edu>
era@niwot.scd.ucar.EDU (Ed Arnold)
bb@math.ufl.edu
John DiMarco <jdd@db.toronto.edu>
uunet!polstra!jdp (John Polstra)
niklas@birdy.ericsson.se (Niklas Gerdin GSA)
Richard Nuttall <richard@unipalm.co.uk>
eap@bu-it.bu.edu (Eric A. Pearce)
--peter gross
pag@scg.boulder.co.us
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:06:21 CDT