On Wed, 23 Apr 2003 16:06:43 -0400
"MC Matt Cooper (2838)" <Matt.Cooper AT AMGREETINGS DOT COM> wrote:

> Hello all,
> I am doing some what if research and I keep hearing that relatively cheap
> ATA disk systems are RAID-5 and a good alternative to a local tape copy.
> I was wondering if anyone has done this or can give truly educated comment
> on it.   I don't know if it would be a good fit for streaming 20 backups
> at so it may be better as a second level disk pool.   Please share your
> knowledge of this area...
> Matt

Hi,

if you expect to have a fairly small environment( <10 TB primairy copy
pools) I think it's a good choice to buy ATA disks arrays for primairy
storage. Prices are about $12000 for 2 TB. Remember that spinning disks do
consume power and you do want hardware support on the disk arrays.

Tape solutions are easier and proably cheaper to scale, and since you'll
probably net a library adn drives anyways to handle the copy-storage pool,
you'll probably find that for larger environments, having primairy copies on
tape does make sense.

--
Met vriendelijke groeten,

Remco Post

SARA - Stichting Academisch Rekencentrum Amsterdam    http://www.sara.nl
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