Unable to mount hammer file system Undo failed
wojtek at wojtek.tensor.gdynia.pl
Thu Jul 19 23:15:40 PDT 2012
> People who use HAMMER also tend to backup their filesystems using
> the streaming mirroring feature. You need a backup anyway, regardless.
definitely. Backups are different thing.
But i do not consider online mirroring from hammer as backup feature, but
something like more sophisticated mirroring.
As long as backed up data is available on line for writing i don't
consider it backup.
I use rsync for backing up everything, with backup machine located on
different place, and not accessible from outside internet.
> the fact that the copies are all being managed from the same machine).
and that this copies are not ever regenerated.
> failures over the years, mostly blamed on failed writes to disks or
> people not having UPS's (since UFS was never designed to work with
> a disk synchronization command, crashes from e.g. power failures could
Seems you are quite out of date with FreeBSD. FreeBSD UFS do perform disk
cache flushes at right time.
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