From: rob.de.langhe@belgacom.be
Date: Mon Jan 17 2005 - 04:57:01 EST
Hi,
last week we had a system with "/" filesystem corrupted so badle, that
it had to be restored from backup tape.
Surely we do not want this to happen again, so after careful discussion
with SUN about what could have caused such bad filesystem corruption,
SUN noticed that both UFS-logging was activated via the options in
"/etc/vfstab", and the Veritas Volume Manager's "Dirty-Region-Logging"
(DRL) was enabled at the same time.
This was a non-supported situation according to SUN, but they failed to
present me clear documented reasons that such combination indeed is the
root-cause for a filesystem corruption.
Can anyone point me to documented behaviour with these 2 logging-methods
activated at the same time? I admit, this situation doesn't sound too
healthy, but I inherited this environment since a few weeks and want to
show good reasons why it should be 'corrected'.
Thx a lot in advance !
Rob
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