Messages in this thread | | | Subject | Re: backups/dumps/caches | From | Alan Cox <> | Date | 06 Aug 2002 23:34:15 +0100 |
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On Tue, 2002-08-06 at 21:54, Oliver Xymoron wrote: > > 2. Perhaps, naively, is it possible to shut off > > caching temporarily (and without rebooting), > > accepting the performance hit, while a dump > > is done, and then restart caching afterwards? > > Yep. Switch to single user mode, sync all filesystems, unmount them for > good measure, dump, then switch back to multiuser mode.
If you are using 2.4.19 then the actual bug dump hits is sorted. Dumping a live fs still will mean you end up restoring a not 100% consistent state of one file versus another and of file data for a given file. You have to weigh that against downtime. In most cases the downtime isnt worth it for having a few files that are logged in a transient state.
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