SUMMARY: OT Veritas recovery work

Hi,

Thanks to Darren Dunham and Reggie Beavers for their 
assistance.

In the end I admitted defeat and rebuilt the whole 
thing from scratch. It appears that the presentation of 
the LUNs had changed so much as a result of the 
software updates on the array (adding Accesslogix 
among other things) that there was no effective way to 
re-establish connection between the LUNs and the 
original disk groups. The underlying devices bore 
virtually no relation to what we started with and we 
didn't have sufficient info saved from the original install 
to even attempt a reconstruction.

Lesson learned is always keep a recent copy 
of "vxprint -thf"  and prtvtoc output somewhere safe. 

And may I second the call for people to sort out their 
vacation messages please? Out of about 25 responses 
only 2 weren't machine generated.

Cheers

Joe.

-----------------------originally---------------------------


I have this Clariion disk array which has 4 LUNs. Today 
this array got it's software reworked and now the 
original 
Powerpath devices I was using to access the LUNs are 
invalid. What I do now have is 4 solaris devices 
corresponding to those same LUNs. Is there a way I can 
regenerate the disk groups based on those LUNs 
without trashing the data inside them.

eg I used to have a device emcpower0c which fed a disk 
group called ha_dg_ora_d1. Now emcpower0c is gone 
but c5t0d3 exists and points to the same LUN. I'd like if 
possible to re-init the disk group without actually 
initialising the whole LUN and trashing the data.

What are my chances?
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