Atto sells a 4TB (raw) unit with dual 2GB fibre for about $40K (US).
We've had good luck with them.

-Lloyd


On Thu, 24 Apr 2003 17:12:54 +0000
Dan Foster <dsf AT GBLX DOT NET> wrote:

> Hot Diggety! Patrick Boutilier was rumored to have written:
> >
> > We pay only about $8000 CDN for 2TB of RAID5 storage.
>
> Hmm, what disk subsystem and model, if I might ask? We're looking at
> two products - the Nexsan ATAboy2 and an equivalent one from Jetstor;
> both are pretty much technically identical in all respects and costs
> about USD $13,000, and looks great. But that's for a 1.6 TB setup
> (8x200) with max usable about 1.2 TB in a RAID-5 + 1 hot spare setup.
>
> Now I'm curious what exceeds that in usable capacity for much cheaper.
>
> > >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.
> >
> > Except when you need to restore. Restore from disk is much faster than
> > restore from tape. :-)
>
> That depends on what type of tape library you have and how you've
> configured TSM (such as setting up a separate stgpool just to hold the
> directory information, for instance). For example, a LTO-2 drive can
> read/write data at up to 35 MB/sec natively, and even more in compressed
> mode. That usually gives it a pretty good run compared to RAID-5 disks
> :) I usually see about 18-22 MB/sec with RAID-5 drawers from various
> vendors and with various hardware-accelerated cache-based RAID
> controllers.
>
> -Dan
>


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