Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!udel!princeton!siemens!demon!bmh
From: bmh@demon.siemens.com (Beatrice M Hwong)
Newsgroups: comp.sys.mac
Subject: Re: 40 Mb Hard disk problem
Keywords: SE/30 power up initialization
Message-ID: <16980@siemens.siemens.com>
Date: 20 Oct 89 20:00:38 GMT
References: <6530@pt.cs.cmu.edu> <1391@shell.shell.com>
Sender: news@siemens.siemens.com
Reply-To: bmh@demon.UUCP (Beatrice M Hwong)
Organization: Siemens Research and Technology Laboratories
Lines: 20

The problem I'm about to describe involves the 40Mb internal in a MacII
and the Apple Tape Backup 40SC.  A recent drive failure has meant replacing
the internal disk2 with a disk3,
but now the Apple Tape Backup cannot recover from any tapes
created with "volume save" from the past six months.  Disk3 can backup
and recover a newly created tape.  The only old tape that is recoverable
is one created over six months ago just before another 40Mb, disk1, failure.
The suspicion is that the 40Mb disks are not exactly the same, although
the Apple part number would indicate they are.  Disk3 is known to be a Sony.
The tapes of recent vintage are the ones we need to recover to disk,
not the 6 month old tape.  

Any ideas or suggestions?

Beatrice Hwong
Siemens Corporate Research
755 College Rd E
Princeton, NJ
609-734-3384
bmh@siemens.siemens.com