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Conference ssdevo::hsz40_product

Title:HSZ40 Product Conference
Moderator:SSDEVO::EDMONDS
Created:Mon Apr 11 1994
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:902
Total number of notes:3319

845.0. "HSZ40 large stripeset on AXP VMS 6.2" by ATZIS3::DIETRICH_B () Wed Apr 16 1997 07:54

Hello,

customer intended to build a large stripeset connected to a
HSZ40 and an Alphaserver 2100 with VMS 6.2 .

Stripset constists of 6 RZ29B 

init failed.

$  init $1$dkb102: raid2
%INIT-F-INTDIV, arithmetic trap, integer divide by zero at PC=800079C8,
PS=0000000B


20GB Raideset consisting of RZ29 works O.K..


I heard about ALPCOMPAT_062.A which would help, there is no description inside 
about upper problem. 

VMS or HSZ-Problem ?

Thanks in advance, Bernd Dietrich, Austria




T.RTitleUserPersonal
Name
DateLines
845.1What versionSSDEVO::RMCLEANWed Apr 16 1997 11:061
Which version of HSOF software are you running?
845.2ALPCOMPAT_062 helpedATZIS1::DIETRICH_BThu Apr 17 1997 04:3318
Hello,

sorry for missing information.

HSOF software is V25 Z-6,  the HSZ40 seems to be an old one.

Configuration  A2100,KZPSA---single HSZ40---KZPSA,A2100


Good news:

after customer installed ALPCOMPAT_062.A by himself he was able to init 
6-RZ29B-stripeset.


Bernd Dietrich


845.3Upgrades would make things better...SSDEVO::RMCLEANThu Apr 17 1997 10:313
Well... I guess the problem was not the HSOF software.  You probably should
encourage him to upgrade to V3.0 or V3.1.  There were some geometry issues
with raid 0 & raid 1 with earlier versions of HSOF software.
845.4UTOPIE::OETTLhide bug until worst timeThu Apr 17 1997 15:263
Or sell a controller upgrade in case of an HSZ40-A ...

�tzi
845.5now its geometry ATZIS2::DIETRICH_BMon Apr 21 1997 04:4127
Hello,

thank you for comments about geometry issues, i think we need upgrade to V3.* 

Customer tried to allocate a large file by his database-application.
-----> system crashed with 
			
		UNXSIGNAL, unexpected signal name in acp
		
		image was ADABAS-database-application


Checking with sho dev/full 
	Total cylinders		32645
	Sectors per track  	64
	Tracks per cylinder  	8
		
32645*64*8  ---> 16714240  blocks   multiplication is wrong 

VMS shows ~50000000 blocks (?)

His ADABAS-database-application showed available cylinders ~98000  
	as he tried to allocate a 40000 cylinder file ---> crash


Hope I am right,  Bernd 

845.6Better to go to V3.1SSDEVO::KOWALLStorageWorks Engineering SupportTue Apr 29 1997 11:047
                             Geometry problems 

        If the customer wants to "mirror" the 5 member strip set then he
should upgrade to V3.1. Not V3.0. 
        
        
        JK