On Sunday 13 February 2011, Jason McEachen elucidated thus:
> I'm also about to migrate to a new file server, and wonder if this
> would be a good topic for a AKLUG Friday night presentation if
> someone is extra smart on storage file systems and would like to
> share?
>
> My plan is to build a FreeNAS box with three 1TB drives to create a
> ZFS mount for storage (with a rotating external drive and internal
> hot backup, just because I've got the hardware lying about). Having
> someone present and overview on the different technologies that are
> currently running around (raid, zfs, lvm, etc) and the best use for
> each would be great.
If using ZFS, I think, in theory, the bit error rate shouldn't be an
issue because of ZFS's checksumming.
j
>
> Just thinkin,
>
> --Jason
>
> On 02/13/2011 07:38 PM, Joshua J. Kugler wrote:
> > On Sunday 13 February 2011, Scott A. Johnson elucidated thus:
> >> Have a 8 drive RAID 5 with ~1.4TB capacity that has been full for
> >> a while and is getting old. Just ordered the hardware to migrate
> >> over to a 5-drive NAS with 2TB drives. I'll only use three of the
> >> drives for storage as the other two will either be parity in a
> >> RAID 6 or parity plus hot spare in a RAID 5. Anyone with
> >> suggestions, thoughts, or experiences on one configuration versus
> >> the other?
> >
> > Have you taken into account the fact that a 2TB drive has more bits
> > than 1/(error rate)? Thus, your chance of bit error while reading
> > the entire drive is> 1, thus (in theory) you could never
> > successfully rebuild your RAID array? Personally, I'd only use
> > maximum capacities of 500 to 750GB or so in my RAID drives.
> >
> > j
>
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-- Joshua Kugler Part-Time System Admin/Programmer http://www.eeinternet.com - Fairbanks, AK PGP Key: http://pgp.mit.edu/ ID 0x73B13B6A --------- To unsubscribe, send email to <aklug-request@aklug.org> with 'unsubscribe' in the message body.Received on Sun Feb 13 20:42:10 2011
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