Re: [BackupPC-users] BackupPC and 7x250G disk array

[Jean-Yves B. <7u...@wa...>]

Hi Ski,

Ski Kacoroski wrote:
> I am set up like Martin, but with 250GB disks.  If you have the space, =
I=20
> would try what some members of the list have suggested and set up the=20
> raid as a set of jbod.  Then use the lvm to set up two volumes of 3=20
^^^^^^^^^^^^^^^^^^^^^^^
> disks each and mirror them to each other.  This will allow you to break=
=20
> the mirror and remove the disks for offsite storage when necessary.

I would say no, as Raid-0 has better performances than
jbod.

Mirroring has slightly better performances but eat half of the HDs
(dou you really need extra speed ??).

IMHO you'd better setup a 5 Hds Raid-5 array (with one spare HD).

I use such a configuration (but just for 10 machines) with a
Debian Sarge and software Raid-5, and it work perfectly.

If you really need hi-performances, consider a hardware Raid device.

Also, if you persist with jbod or Raid-0, check your HDs serial numbers
(*not* contiguous !) and prefer using HDs of same sizes, but from
different brands; this can avoid massive data destruction if you
fall into a faulty batch of hardware

Cheers,

=B5Jean-Yves Barbier