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Server Abends During Backup

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rajeshbahl

IS-IT--Management
Jan 6, 2002
116
IN
We are facing two problems:-
1.our server (netware 4.11)is running okay. When we start taking backup through sbackup (we have Tandberg SLR5 tape drive and we are using 525 MB cartridge for taking backup),the server abends when we insert the third cartridge in succession.The first two cartridges get backed up properly and the problem comes in the third cartridge. We have tried changing the cartridge also but the problem remains the same.

2.Is there any command to find and remove unnessary (tmp and bak) files across all the volumes on a server ?

Can anyone help ?


Thanks In Advance
Rajesh K. Bahl
 
What is the abend message? Check SYS:SYSTEM\ABEND.LOG to get the exact message

-----------------------------------------------------
"It's true, its damn true!"
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rajeshbahl, you can use TOOLBOX.NLM to run commands from the server console like "DIR *.TMP" and "DIR *.BAK". I think you can get this utility from Novell or do a general search on google.

You can also use Toolbox.nlm to delete the files. just be careful, you can wipe a system out very quickly if you put in the wrong commands. For example.. Don't do a "DEL SYS:" or a "DEL *.* /s" ... very bad.

But it has good instructions, so you should be able to figure it out pretty quick.

Marv

Marvin Huffaker MCNE, CNE
Marvin Huffaker Consulting
 
The abend message is:

Page fault Exception Error (00000000)

After this there is hexadecimal dump.


Rajesh K. Bahl


 
Rajesh, a typical abend.log file has much more information that is helpful than just the abend itself...

If it's a software problem, you should be able to identify the problem module from within the ABEND.LOG file fairly quickly. There are several pieces of info that should point you right to it. You should be able to see various modules listed in key places in the log that.. The stack, the running process, etc.. This is great at identifying a problem NLM.

For example.. look at this bit of an abend.log file that I have pasted in.. Same initial error, page fault.. But please look at a few specific things here...

1) EIP in... SURVEY.NLM
2) Running process... SURVEY.NLM
3) Stack ... SURVEY.NLM is the most frequent.

All these tell you one thing.. SURVEY.NLM is the problem. SURVEY.NLM is listed so many times it's almost a dead giveaway that it is the problem. You should be able to do the same thing with your abend log and narrow it down considerably.


**** EXAMPLE ABEND.LOG *** NOT THE SAME PROBLEM AS LISTED IN THIS THREAD ***
---------------------------------------------------------
Server UxxxxxxxxxxPP01 halted Monday, December 9, 2002 5:51:48 pm
Abend 1 on P00: Server-5.00j: Page Fault Processor Exception (Error code 00000000)

Registers:
CS = 0008 DS = 0010 ES = 0010 FS = 0010 GS = 0010 SS = 0010
EAX = 08335800 EBX = C09E4084 ECX = 2DC8D5FE EDX = 00000010
ESI = C1351FFE EDI = 0848C124 EBP = C09DE150 ESP = C09DE128
EIP = C0AB3C62 FLAGS = 00214207
C0AB3C62 F3A5 REP MOVSD
EIP in SURVEY.NLM at code start +00068C62h
Access Location: 0xC1352000

The violation occurred while processing the following instruction:
C0AB3C62 F3A5 REP MOVSD
C0AB3C64 59 POP ECX
C0AB3C65 83E103 AND ECX,00000003
C0AB3C68 F3A4 REP MOVSB
C0AB3C6A 07 POP ES
C0AB3C6B 5F POP EDI
C0AB3C6C 5E POP ESI
C0AB3C6D C3 RET
C0AB3C6E 0000 ADD [EAX],AL
SURVEY.NLM|memset:
C0AB3C70 8B442404 MOV EAX,[ESP+04]



Running process: SURVEY.NLM 1 Process
Created by: NetWare Application
Thread Owned by NLM: SURVEY.NLM
Stack pointer: C09DDF3C
OS Stack limit: C09D8400
Scheduling priority: 67371008
Wait state: 5050100 (Delayed)
Stack: --B738C11F ?
C0A50010 (SURVEY.NLM|PoolFree+E8)
--C09DE4BC ?
C0A56433 (SURVEY.NLM|GetXrefinLanguage+275)
C0A92123 (SURVEY.NLM|DumpVolumeInformation+8674)
--08335800 ?
--C11FB6DA ?
--B738C11F ?
--00000000 ?
--00000000 ?
--C09DE234 ?
--C09DE4BC ?
C0A56433 (SURVEY.NLM|GetXrefinLanguage+275)
--C09E4084 ?
C0A92FAC (SURVEY.NLM|LoadVolumeInformation+E58)
--C09DE220 ?
--C65519C4 ?
--B738C11F ?
--00204297 ?
--00204297 ?
--C09EBC44 ?
-FC4E0028 (SERVER.NLM|AllocSizeTable+1EC)
--C11FA658 ?
--00000000 ?
C0A56433 (SURVEY.NLM|GetXrefinLanguage+275)
-FC529BBC (SERVER.NLM|OSAS+0)
--C09DE1BC ?


-------------------------------------------------------------
Hope that helps.

marv

Marvin Huffaker MCNE, CNE
Marvin Huffaker Consulting
 
Thanks for the details given by you !


Is there any site/document explaining the method of analysis? I have gone through the Novell Application Notes (1995)which explain a few things about the analysis.Is there any other supplementry information that we can go through ?



Thanks
Rajesh K. Bahl
 
I can't say I've ever seen a document that explains a cut and dry method. I've learned to pick up on certain things but it's difficult to explain. There are just too many variables and a lot of times I go with gut instincts.

Wish I had a better answer for you.

Marv

Marvin Huffaker MCNE, CNE
Marvin Huffaker Consulting
 
Thanks anyway for the suggestions!


Rajesh K.Bahl
 
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