Re: [cobalt-users] NEW Cobalt RaQ xtr

[Lyle Scheer <Lyle.Scheer@xxxxxxx>]

Pierre Chopot wrote:
> 
> Hello List,
> 
> Saturday, January 20, 2001, 12:44:58 AM, you wrote:
> 
> RJPEm> On second thought, here's a truly off-topic question:
> 
> RJPEm> I see no reference to SCSI in the stuff about the XTR and they are using
> RJPEm> IDE drives. Now who the heck makes an IDE RAID controller that allows
> RJPEm> RAID-5???
> 
> According to the specs, this is a RAID 5 implemented through software,
> but "each drive has its own independent master channel to allow high
> performance without extra RAID hardware" ....:-(
> Also, IMHO, being able to make RAID 5 and being able to access the
> drives from the front panel is nice... but these drives don't look
> like being hot-swappable ... which would confirm them not being SCSI
> (I've never heard of IDE hot-swap, but I may be wrong)

You are correct.  They are IDE and not hot swappable.  The RAID is
implemented in software, and each IDE drive has it's own independent
master channel for high performance.

You will notice if you open up a RaQ XTR that the drives are connected
to a daughter board that contains the IDE controllers, which connects to
the main logic board.

- Lyle