On Wed, 28 Dec 2005, Mike Branda wrote:
> On Tue, 2005-12-27 at 18:19 -0500, Eben King wrote:
> > On Tue, 27 Dec 2005, Levi Bard wrote:
> >
> > > The data wasn't important enough that I made backups; although it is a
> > > bit of a nuisance losing it, it can be recreated.
> >
> > In the future, an easy way to make backups is to have a second HD
> > (identical works; non-identical, same-size (smaller drive = main) should
> > work; larger (= backup) might work); and nightly copy main -> backup.
> > rdist would be _much_ faster. On my machine, it takes about 1h10m for
> > 115G on the same channel. Set the backup drive's spin-down time short.
> > Won't work now, of course.
>
> Why not RAID 1?
Thought about that, but I didn't want the extra load/heat of a second drive,
or the noise. And that would age both drives about the same; as it is, I
should get a bit less than a second lifetime from the second drive.
> Or just rsync the two if the disks are of different size or you're worried
> about performance loss with the RAID?? It would cut the drive wear way
> down and rsync only changes the files that have been modified.
I'll have to use rsync if I upgrade drive sizes.
> I'll bet you could rsync the two in less that 10 minutes on average.
> especially on the same channel.
Probably. I want to be able to repartition the main drive and have that
reflected in the backup, and I couldn't find a way to do that with rsync.
If you don't plan on repartitioning, then rsync is much better than dd for
backup purposes.
-- "Never go off on tangents, which are lines that intersect a curve at only one point and were discovered by Euclid, who lived in the 6th century, which was an era dominated by the Goths, who lived in what we now know as Poland." - Unknown from Nov. 1998 issue of Infosystems Executive.----------------------------------------------------------------------- This list is provided as an unmoderated internet service by Networked Knowledge Systems (NKS). Views and opinions expressed in messages posted are those of the author and do not necessarily reflect the official policy or position of NKS or any of its employees.
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