Fellow toasters; I have an F760 cluster running NetApp Release 6.1R1P1. In the past week, we have "lost" two disks on separate shelves. The disks seem to disappear from the filer and do not show up. All the disks are Seagate ST318203FC 18GB drives with firmware NA10. I've seen this happen before on spare disks, and the first disk we lost this week was a spare. Typically, the spare fails and just stops reporting; if you slip it into a different slot the disk reports as failed. No big deal, just a spare failing and the filer doesn't know what to do with it immediately. But yesterday, we lost a data disk; it actually didn't show up in the weekly cluster notification log that runs at midnight. Around 2pm we received a disk fail alert for the drive and a disk/shelf miscount error. While checking on this, I noticed a third disk, another spare, had "disappeared"; however, once the volume rebuild completed, this disk "reappeared." I was wondering if anyone else had seen similar behavior on their filers? Like I said, this is a cluster, and it's partner was still able to see the third disk that "disappeared", which leads me to believe I have an FC-AL adapter failing. All three disks have been on separate shelves, which also leads me away from suspecting an LRC (that would be too easy). Before I go tearing into the filer though, I wanted to see if anyone else had experience with this problem.
Thanks,
Geoff Hardin geoff.hardin@dalsemi.com
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