Restoring disk manufacturer's media defect lists?
David R. Kaelbling
igor!drk at uunet.uu.net
Tue Mar 7 23:03:06 AEST 1989
Due to circumstances I won't go into, I botched re-formatting some of our
disks (SMD Fujitsu 2344 and 2361's) and erased the manufacturer's media
defect list. I still have the paper copies, and would like to somehow
tell diag about these bad spots. (A weekend's formatting only turned up 8
bad sectors when Fujitsu found 42, and I was unable to construct a
reasonable mapping between the two).
Does any know how I can translate the (cylinder, head, pos, length)
information into something more directly useful (e.g. block numbers)? I
find elusive hints in various places that diag's sformat may help, but I
can't find any documentation which actually describes this command.
The machine involved is a 3/260 running SunOS 3.5, with an xy451
controller. Both disks are set for 600 bytes/sector. Any help, including
RTFM with an explicit M, would be appreciated.
Thanks.
David Kaelbling (408) 496-3600
c/o Rational; 3320 Scott Boulevard; Santa Clara, CA 95054-3197
drk at Rational.COM, drk at igor.uu.net, ...!{uunet,ubvax,amdcad}!igor!drk
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