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Conference ssdevo::hsj40_product

Title:	HSJ30/40 Product Conference

Moderator:	SSDEVO::EDMONDS

Created:	Mon Jul 12 1993
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	1264
Total number of notes:	4958

1203.0. "Write Back Cache and Batteries problems" by LATINA::ROMPI (MCS Madrid) Tue Feb 04 1997 03:16

    
            I'm having more problems with the batteries failing. I have 
    three customer whit similar problems in a short time space. The problems
    is that the batteries fail and the  Write Back Cache contacts are sulphated
    by the acid of batteries, after cleaning the contacts the problems do not
    disappear and is necessary to change the Write Back Cache and the
    batteries.
    
           Is anyone else having this problem?
    
           Any comments or observations would be appreciated....
    
           Thanks in advance...
    
                    Francisco Portero
                    CSC Madrid

T.R	Title	User	Personal Name	Date	Lines
1203.1	I've seen batteries leak	MPOS02::SCHRUPP		`Tue Mar 11 1997 15:36`	11
	I have had this happen twice now. The first time the battery leaked and the contacts and battery were covered with the white acid stuff. I tried to clean it off but the new batteries failed to charge. I had to replaced the cache board. The second time was just last week, the 4 month old single HSZ40 had its raid 5 drives go offline and we replaced the batteries. The next day it happened again and we discovered that one of the batteries have the white sulphated in it. I was able to clean this one and the batteries came up good.
1203.2	Clean the module carefully	SSDEVO::RMCLEAN		`Wed Mar 12 1997 10:11`	2
	Make sure you clean the module also or it might have some residue and cause the replacement to look like it is leaking.
1203.3		SSDEVO::THOMPSON	Paul Thompson, Colorado Springs	`Wed Mar 12 1997 17:05`	7
	If there has been battery leakage onto the cache module, replace the cache module. DO NOT ATTEMPT TO CLEAN IT. The corrosion can either affect the contact between the replacement battery and the module or cause later confusion regarding whether the cleaning was incomplete or the new battery has leaked. Again, if there is any sign of corrosion on a cache module from battery leakage, replace the cache module.