Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!husc6!bloom-beacon!oberon!cit-vax!ucla-cs!zen!ucbvax!hep.nrc.CDN!system
From: system@hep.nrc.CDN (Bill Jack)
Newsgroups: comp.os.vms
Subject: Problem with BACKUP
Message-ID: <402*system@hep.nrc.cdn>
Date: Sat, 10-Oct-87 13:13:19 EDT
Article-I.D.: hep.402*system
Posted: Sat Oct 10 13:13:19 1987
Date-Received: Mon, 12-Oct-87 06:40:23 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 44


	Dear BACKUP users :

		I have been recently having trouble with BACKUP.
	When doing a BACKUP of an RA81 onto 6250 bpi tape on the 
	VERIFY pass, I have got the following error message :

	%BACKUP-E-READERR, error reading MSB0:[]OC0987.;
	-BACKUP-E-SHORTBLOCK, save set block too short

	The manual says that BACKUP encountered a physical block 
	SHORTER than the value recorded for the save set
	and that the data in the saveset is corrupted which all makes
	sense.  However,  I don't know WHY this problem is occurring
	and HOW to correct the problem.

	Other pertinent information :

		-  am using straight $BACKUP and am copying about 80% of 
	files on the RA81. ( not /IMAGE)
		
		-  before we migrated from 11/780 with RM05s to our VAX 8250
	with a RA81,RA60, the BACKUP on the same user data (same amount of data 
	even though different disk) took 1.5 tapes.  The same BACKUP now
	copying from the RA81 to tape takes 5 tapes and claims to be corrupted.

		-  the tape system we have are two STC 1950 series drives
	(6250/1600 bpi) with an AVIV controller which is up to date and 
	which AVIV claims to work on new BI-UNIBUS adapter (for an 8250)

	Any insight on this strange problem would greatly be appreciated.
	
	Please send any replies to me directly as I am not on the INFOVAX
	list at this time.

	Thank you     

			  -------------------------------

  	Bill Jack, System Manager
  	High Energy Physics VAX  
   	National Research Council
	Ottawa, CANADA