SUMMARY: SS1000 reassigns SCSI ID's

From: Rachel Polanskis (r.polanskis@nepean.uws.edu.au)
Date: Thu Oct 14 1999 - 22:47:56 CDT


Hi,

I didn't get a solution to my problem.
Nearly all the replies I got were sympathetic "Me Too's".

Apparently Sun themselves don't have an answer for this one.
Also it appears to affect the later model Ultra Enterprise
systems to one degree or another as well....

Original question is provided below.

rachel

-----Original Message-----
Subject: SS1000 reassigns SCSI ID's

Hi,

we have an SS1000 that runs Disksuite for a concat/stripe
and also mirrors across two SCSI controllers.

When I moved the boot disk off c0t0 to c2t2 (successfully)
we were unable to cleanly mount the SDS managed volumes because
the S1000 reassigned the ID's and mixed them up.

A "probe-scsi-all" gives different results depending on what
disk we booted off previously with disks originally on c3 now
appearing on c2 and disks on c2 appearing on c1.

Needless to say this made a mess of our metadbs and a pain to reassemble
the mirror.

How does one deal with this problem when running SDS on the S1000?

I have moved mirrors on other boxes before and the controller ID's
remained the same making the task easy but the S1000 like to play
Russian Roulette with them.

I would either like to know how to ensure the SCSI controller ID's
stay constant or how to quickly know how to find out which disk
goes where.....

thanks
rachel

Rachel Polanskis University of Western Sydney, Nepean
Senior UNIX Admin PO Box 10, Kingswood NSW 2747
Systems && Operations Information Technology Services, Kingswood
r.polanskis@nepean.uws.edu.au Phone: +61 (0247) 360 291



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