Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!sun-barr!rutgers!cmcl2!acf4!wood
From: wood@acf4.NYU.EDU (David Wood)
Newsgroups: comp.sys.sgi
Subject: fx/disks/3.2 upgrade
Message-ID: <17280030@acf4.NYU.EDU>
Date: 19 Dec 89 15:59:00 GMT
Organization: New York University
Lines: 26


		We recently upgraded to 3.2 on our 4D/80GT.  Last
	week we began noticing unrecovered disk errors on the
	disk with / and /usr.  So I read the man page for fx
	and used fx to find the bad blocks.  My mistake was using
	fx to forward the bad blocks while the system was up
	and running.  The resulting sympton was that we got disk 
	I/O errors during 'find ...' .  I double checked the man page 
	and nowhere does it say you can't do this.  BE WARNED that you 
	are supposed to use the stand alone version of fx when the
	system is down of course.  Incidentally, we have an ESDI drive.
		While discussing this with SGI, one of there field
	service guys told me that when upgrading to 3.2, you are
	supposed to re-format your disks.  "Really, it didn't say that
	anywhere in the installation guide", says I.   He said
	it was only recently discovered that this was necessary.
	Has anyone else heard anything like this?

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 David Wood					wood@acf2.nyu.edu
 New York University				...!uunet!cmcl2!wood
 212-998-3029
 		"Brain. Brain. What is brain?" 
			Kara the Eymorg, "Spock's Brain", Stardate 5432.3
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