Re: backups using rsync

[Giorgos Keramidas]

On Tue, 05 Mar 2013 20:30:22 +0100, Matthias Petermann <matt...@d2ux.org> wrote:
> Hello,
> Zitat von Giorgos Keramidas <kera...@ceid.upatras.gr>:
>
>> If this is a UFS2 filesystem, it may be a good idea to snapshot the
>> filesystem, and then rsync-backup the snapshot instead.
>
> Last time I tried UFS2 snapshots I found out two serious limitations.
> The first is it doesn't work when UFS Journaling is used. The second is
> that taking a snapshop on a large filesystem can cause parts of the
> system to freeze for many minutes up to hours when accessing files
> part of the snapshot, depending on the size of the filesystem.
> That's why I could not use it on my server with > 1TB UFS2.
>
> Did this improve in the last year? (I guess my experience is from the
> time around 9.0 release).

Hi Matthias,

Unfortunately I don't know if snapshots for such large filesystems are
faster now. I've only used UFS2 snapshots in about 10x times smaller
filesystems here.

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