spontaneous unmount

[T. Horsnell]

>Would you be using an auto mounter ?

Yes, but only to automount NFS disks exported by another box.
The disks that spontanously unmount are attached SCSI.

>
>
>T. Horsnell wrote:
>> I'm gradually migrating my Alpha server over to an Opteron box running RHEL4.
>> This involves various disk juggling including hot-plugging SCSI disks on the
>> RH box. All the disks are in external shelves. Every now and then, some of
>> the filesystems on this box spontaneously unmount. Until now, the unmounts
>> seem to have been associated with adding/removing disks on the RH system
>> and I've been logging the mount situation every 5 mins to try and get a clue
>> why. However, during the the most recent unmount (5 filesystems unmounted)
>> I wasnt juggling any disks, but I see this in the messages log within the
>> 5 minute window during which the 5 filesystems disappeared.
>> Is this significant?:
>>
>> Jul  6 18:44:15 ls1 kernel: mtrr: type mismatch for fd000000,800000 old: write-back new: write-combining
>>
>> At the time, I was killing and restarting rhnsd because of an rpm lockup
>> due to a stalled up2date. This wasnt updating anything, just installing
>> xemacs, and I had to kill all processes which had /var/lib/rpm/__db* open
>> as reported by lsof.
>>
>> The 5 disks (one filesystem per disk) happen to be on 3 different Adaptec SCSI
>> adapters, and in 3 different Storcase disk shelves, so I dont suspect an
>> adapter fault or a disk-shelf fault.
>>
>> So far, Gooling and Bugzilla searching has shown up nothing, so
>> any clues/suggestions would be greatly appreciated.
>>
>>
>> Cheers,
>> Terry.
>>
>>   
>
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