🚀 go-pugleaf

From article <5522@cbmvax.UUCP>, by jesup@cbmvax.UUCP (Randell Jesup):
< In article <328@b11.INGR.COM.> jim@b11.UUCP (Jim Levie ) writes:
<
<>The question is does format add to the badblock information for SCSI or ST506
<>drives?  It would seem to me that one of the things either format or some
<>other utility should do is to find and report badblocks that are present on
<>hard disks and also update the bad block data on the drive. When the bad blocks
<>are reported they should be in a form suitable for input to "prep' to avoid
<>having to scan for them in the future.
< 
< 	Actually the idea is that when format is formatting and testing the
< tracks, if the driver notes an error it should automatically map out that
                                          ^^^^^^

< sector, and add it to the list of bad blocks at the beginning of the drive.
< Similar things happen with SCSI.

Ok, maybe I'm being a bit thick here, but DOES the A2090A actually add
bad blocks found in formatting to the list of bad blocks on ST506
drives?



A little bit off the track: I've made a little script to run Prep, and
enter all the bad block data. I used this when I was messing with
different interleaves on my drive.

There are no comments (I didn't try it, but I figured any comments would
be read by Prep. Was I right or wrong?), but here's a rundown of what's
going on.

0	Select "User Defined"
8	Number of heads (Not 9. Sob, whimper. :-)
1024	Number of cylinders
	Default (17) sectors
	Default Write Precomp
	Default (No) autopark
3	High Cylinder for DH0:
	Default (30) buffers
y	Mark bad blocks (Yes)
857;1;4151	Cylinder; Head; Offset (BFI) of bad block.
y	Correct? (Yes)  [Repeat these two lines as needed.]
	Last bad block
n	No more bad blocks
y	Proceed with Prep? (Yes)
	Dunno why this is here, but it wouldn't work without it.
=============================Cut Here==================================
0
8
1024



3

y
857;1;4151
y
177;2;8334
y
178;2;8335
y
359;2;9132
y
360;2;9131
y
737;3;9352
y
882;3;8061
y
954;4;6055
y
968;4;2577
y
969;4;2576
y
23;6;8703
y
24;6;4097
y
24;6;6795
y
819;6;10222
y
961;7;581
y

n
y

===============================Cut Here========================
All the blank lines are just a LF, and there needs to be a LF after the
last "y" in the script.

With this script, playing with interleave was as easy as

Mount RES0:
Prep <BadBlocks RES0:

with the script being named BadBlocks.

I hope this is of some use.
-- 
Blaine Gardner @ Evans & Sutherland    580 Arapeen Drive, SLC, Utah 84108
Here: utah-cs!esunix!blgardne   {ucbvax,allegra,decvax}!decwrl!esunix!blgardne
There: uunet!iconsys!caeco!pedro!worsel!blaine
"Nobody will ever need more than 64K."    "Nobody needs multitasking on a PC."