[NCLUG] sw raid, recovery after install

[Quentin Hartman]

I use a 5-drive Synology device at the office, and while I have not had the
pleasure of living through a drive failure with it, I really like it. It
performs well, was easy to setup, and has a silly number of features. It's
expensive enough I'd not likely use one at home though. As I recall, w/o
drives it was about $1200.


On Wed, Jan 2, 2013 at 11:35 PM, Zak Smith <zak at computer.org> wrote:

> Between about 5 and 3 years ago, my brother and I both lost data using
> linux RAID5 in circumstances that had nothing worse than one device
> with a transient error.  (These were generally using the SATA versions
> of enterprise type drives.)
>
> As a result I have transitioned to using rsnapshot'd (rsync with
> history) pairs or (reluctantly) RAID1 pairs, then having a second
> physical box with the same level of redundancy.
>
> I am curious of the "prosumer" NAS boxes like the Synology 412+/1812+
> series have similar problems or are actually solid.
>
> -z
>
> On Wed, Jan 02, 2013 at 11:21:22PM -0700, Matt Rosing wrote:
> >
> > > I suggest that the choice of RAID5 isn't the best choice.  I would
> > > suggest using RAID1 across two of the drives or adding a fourth drive
> > > for RAID10.  RAID5 saves a little money up front with an additional
> > > risk of data loss later.  I won't put RAID5 on any of my own machines.
> >
> > Interesting comments, Bob. I might have to shuffle some drives around. I
> > can easily make a RAID10. Thanks.
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> --
> # Zak Smith    mobile 970-232-4468
>
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