Date: Tue, 17 Dec 1996 20:09:41 -0600 From: dkelly@HiWAAY.net To: freebsd-scsi@freebsd.org Subject: A rotten CP30540 Message-ID: <199612180209.UAA06412@nexgen.HiWAAY.net>
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A poor friend of mine was given a couple of rotten Conner CP30540 hard drives. I'm trying to help him make them into something usable. The problem is thousands of bad blocks. More bad blocks than the drive has pre-allocated spares. Have found hints this involves mode page 4. Any advice? Attempts at low level formatting with various Macintosh disk utilities always results in an error. Looks like it fails about 35% into the format, if you can trust the displayed thermometer. Simply testing with automatic bad block remapping finally got 90% to 95% thru the drive before running out of spares. I don't trust a drive with this many additions to the grown bad block list. OTOH, its something to play with that I can't ruin any worse. Was thinking of gutting it to put clock movement in... :-) Running it continuosly the past 4 days suggests most of the drive is now reliable. So maybe there is something to salvage here. -- David Kelly N4HHE, dkelly@hiwaay.net ===================================================================== The human mind ordinarily operates at only ten percent of its capacity -- the rest is overhead for the operating system.
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