[Info-vax] more on minicopy
Phillip Helbig---undress to reply
helbig at astro.multiCLOTHESvax.de
Wed Jan 2 14:38:29 EST 2013
In article <kc21k7$qq1$1 at dont-email.me>, Stephen Hoffman
<seaohveh at hoffmanlabs.invalid> writes:
> > It seems to me that intentional dismounts of members of shadow sets are
> > rare compared to unplanned node crashes
>
> Shadowset members are being used for quick backups, and backups happen
> rather more often than host crashes.
Hhmmm. If the disk is quite active, then it might be difficult to get a
consistent---only "crash consistent" copy from a shadow set. But if not
much changes, there isn't as much need for a backup. Of course, there
are things in between, such as applications which do a lot but can find
a quiet point for a backup. At home, though, I am in one camp (stable
disk, infrequent updates, mostly READ) or the other (active disk with
many open files).
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