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From: hurf@batcomputer.tn.cornell.edu (Hurf Sheldon)
Newsgroups: comp.unix.wizards
Subject: uVaxII/Ultrix1.2 - SI/Sigma & Maxtor4380 problem
Message-ID: <2037@batcomputer.tn.cornell.edu>
Date: Mon, 17-Aug-87 08:58:18 EDT
Article-I.D.: batcompu.2037
Posted: Mon Aug 17 08:58:18 1987
Date-Received: Tue, 18-Aug-87 04:00:20 EDT
Reply-To: hurf@tcgould.tn.cornell.edu (Hurf Sheldon)
Distribution: world
Organization: Cornell Theory Center, Cornell University, Ithaca NY
Lines: 47


	Our uVaxII - Ba123/Ultrix1.2 system with decqna,9meg
			3 dhv, 1 dz, 1 qdss, 1 rqdx3/2 rd53
			1 tqk50 and one SI/Sigma RQD11-EC/mx4380;

	We have had a disk problem after a power outage - Our 
        SI/Sigma RQD11-EC/Maxtor 4380 failed fsck on autoreboot.
  	Running fsck manually got "Unable to read blk#nnnnnnn where
	nnnnnnn was any alternate superblock in any partition except
	the 'b' partition. The 'b' partition could find superblock 32
	but found all the inodes to be in error. There were some processes
	running at the time and the 'a' partition is used as swap space.

	The disk was partitioned according to the following table using chpt(8)
	and has worked without error for several months. Both rqdx3/rd53 systems
        we have survived without error with swap on the 'a' partition on the
	second rd53 in both cases.  (One on this uVaxII one on another uVaxII)
		
#
mx4380|MX4380|Winchester Maxtor4380-Sigma SDC-RQD11-EC:\
	:ty=winchester:ns#34:nt#15:nc#1224:\
	:pa#31768:ba#4096:fa#1024:\
	:pb#147727:bb#4096:fb#1024:\
	:pc#622676:bc#8192:fc#1024:\
	:pd#147727:bd#4096:fd#1024:\
	:pe#147727:be#4096:fe#1024:\
	:pf#147727:bf#4096:ff#1024:\
	:pg#295454:bg#8192:fg#1024:\
	:ph#590908:bh#4096:fh#1024:


	Running the nondestructive diagnostic on the controller (Wombat)
	found no read errors or ROM/CACHE errors.

	There are no 'write' errors logged in /usr/adm/messages or syslog.

	The thing that concerns me is that the disk appears to have been 
	completely trashed as a result of the power going down. We can survive
	this one ok but would like to prevent this in the future.
	Would also like to know what happened before we restore.

	
-- 
     Hurf Sheldon			 Network: hurf@ionvax.tn.cornell.edu
     Lab of Plasma Studies		  Bitnet: hurf@CRNLION
     369 Upson Hall, Cornell University, Ithaca, N.Y. 14853  ph:607 255 7267
     I sold my Elan, got a job in science; Now, no one takes me seriously.