On Jun 5, 2007, at 9:42 AM, Josh Dersch wrote:
I'd definitely be interested to know the
procedure. I've
initialized and duplicated disks several times with SCSI disks on
my XL1201, but I've had no luck with ESDI drives on my 3630. The
"Disk Format" FEP command on the 3600 seems only to format the disk
-- it does not create a bad block map; attempting to create a FEP
Filesystem on the disk fails afterwards.
According to Dave Schmidt, the "Disk Format" command you get after
scanning disk.flod in the FEP: "I have never used this command and
have been told that its performance cannot be guaranteed." It creates
an empty bad block file. You add blocks to it one at a time with this
command:
(si:fix-fep-block unit cylinder head sector &key :force-write-test).
This must be done from LISP, which obviously must be running.
Cylinder, head and sector must be entered in octal.
After you finish, you can also fill the disk with test files and run
(si:fix-fep-file "path") to try to pick up any additional bad blocks.
I don't know if you knew this; the FEP cannot allocate new files in
the FEP filesystem, but it can overwrite existing files. The IFS
(initial filesystem) tape restores to FEP files which have already
been allocated by the BOL procedure. LISP can allocate new files in
the FEP filesystem, but if you don't have LISP running, there's a
chicken-and-egg problem.
If you can dig up the procedure when you have the
time, I'd
appreciate it :).
I'll put it on my list. Remind me if you don't hear anything after a
while.
ok
bear