spontaneous unmount

[T. Horsnell]

They have entries in the fstab file and are intended to be
mounted at boot time. As I add new drives, I edit
fstab but mount them manually. If I do this at the console,
I'm in Gnome, but I also do it from an xterm window on
a different machine after ssh'ing to the Opteron box.
The machine hasnt been rebooted for nearly 3 months
and during that time I've added 20 - 30 disks.
T.

>Are these drives mounted form your /etc/fstab file or do you mount them 
>manually, if manually, are you in KDE or Gnome at the time ?
>
>
>T. Horsnell wrote:
>>> 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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>>
>>   
>
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