How to Identify a JBOD disk on a StorEdge 3310 Array

I have looked all over the Sun documentation, but I cannot find an answer.  I have a StorEdge 3310 Array that is configured as a JBOD expansion unit (no hardware RAID), Solaris Volume Manager is doing the RAID on Solaris 9.  I have identified a bad disk in one of the mirrors, using metastat(c2t11d0).  I cannot however figure out how to identify which physical bad disk c2t11d0 is. (which slot in the array is it in)  Any help would be appreciated, as I have not seen any documentation on how to do this.  I have found lots of docs, but they focus on how to do this if it is a hardware RAID.  Thanks.
barthalamuAsked:
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oldgreyguyCommented:
JBOD         is an acronym for Just A Bunch of Drives

http://www.pcguide.com/ref/hdd/perf/raid/levels/jbod.htm
barthalamuAuthor Commented:
Okay.  My question is how to identify the failed disk, which is physically located in the StorEdge 3310 Array from the Solaris failed disk c2t11d0.
oldgreyguyCommented:
you might check this Sun manual out.... you need to know what RAID you are running 0,,1,,2,,3,,4,,5,,10???

http://docsun.cites.uiuc.edu/sun_docs/C/solaris_9/SUNWaadm/LOGVOLMGRADMIN/toc.html
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tonkajeep34Commented:
I had the same issue on a D2 array a few months back. We have volume manager running the raid also and it is very difficult to tell which drive it is. However what we did was when you list out the disks on the second line it had what looked like a serial number.

If you took that number the last  4 or 6 digits would match the end of the serial number on the end of the drive it self. We crossed our fingers and yanked and it was right.

Good luck i hope you find it or that someone else can give you a better answer.

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barthalamuAuthor Commented:
tonkajeep34:

I think you are referring to the "Device ID" information produced at the end of a 'metastat' output.  To me this looks like there is a serial number in there also.  I will check this out on the array at our data center as soon as I can.  Thank you very much for the tip!!
HuntyOwner/OperatorCommented:
How many physical disks are in the system?  If there's less than 5, it's a simple process of elimination.  Take out the first one, look for bad disk, if no, replace, go to next disk...etc...
barthalamuAuthor Commented:
12 disks in the array.
HuntyOwner/OperatorCommented:
Have you patched the firmware yet?  http://sunsolve.sun.com/search/advsearch.do?collection=PATCH&type=collections&queryKey5=113722&toDocument=yes
That's for Solaris 8 & 9.

That's the only thing I could find on the Solaris site.
barthalamuAuthor Commented:
I forgot about this one...sorry about that.

tonkajeep34, I was able to verify that part of that number did match the label on the disk. (although it was on the top and could not be seen until after pulled)  The disk number however did match with the array's numbering.  Thanks!!

Thanks all.
tonkajeep34Commented:
Cool, glad it worked... ours fortuantly were on the ends of the disk also...

Thanks
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