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Conference aosg::lsm

Title:LSM
Moderator:SMURF::SHIDERLY
Created:Mon Jan 17 1994
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:803
Total number of notes:2852

761.0. "LSM resync with wrong mirror copy !!" by COPCLU::KARSTEN (Traveller in AlphaSpace) Wed Mar 05 1997 09:05

Hi,

Yesterday I had a strange LSM problem.

We tested LSM (UNIX v3.2g) on a 8400 with two HSZ50 controllers.
All LSM volumes are mirrored across the HSZ50's.

We did a shutdown, then we turned off the power on one of the HSZ50. 
Then UNIX was booted and everything worked as expected !      

After that, we did a shutdown. And the HSZ50 was powered
on again. 
We booted UNIX and it started to resync the volumes - BUT
IT USED THE WRONG MIRROR COPY for all volumes except for
the root volume.

Is there any explanation for this situation ???

Regards and thanks,
Karsten Elgaard
MCS-Denmark

 
T.RTitleUserPersonal
Name
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761.1need more info ...NETRIX::"srn@rio.zk3.dec.com"Wed Mar 05 1997 11:3812
> We booted UNIX and it started to resync the volumes - BUT
> IT USED THE WRONG MIRROR COPY for all volumes except for
> the root volume.

How did you determine the wrong plexes were used?  Can you 
post the output of 'volprint -ht' during the resync?  Can you 
post the output of 'voldg list rootdg' too?

Thanks.


[Posted by WWW Notes gateway]
761.2COPCLU::KARSTENTraveller in AlphaSpaceWed Mar 05 1997 11:589
We discovered the problem in "dxlsm" - The wrong plexes was "unfocused".

Then we confirmed our observation with a "volprint -Aht" - The right
plexes was "WO", during the resync.

Sorry - We do not have any output from the commands.

Regards,
Karsten Elgaard