[CLUE-Tech] Speaking of RAID...

[Roy J. Tellason]

On Wednesday 20 October 2004 05:32 pm, Chris Dos wrote:
> Roy J. Tellason wrote:
> > I'm giving some thought to setting up a RAID 5 array or two.  Looking at
> > my options,  I have a nice DPT card here that'll support this in
> > hardware,  but the docs with that seem to only allow for arrays that are
> > all the same size drive.  In my reading of various HOWTO and similar
> > documents,  it seems to indicate that this isn't a problem when doing it
> > in software under linux.
>
> Software RAID uses partitions to RAID, not hole disks.  Mismatching
> different speeds hard drives is in either software or hardware is
> generally not a good thing.  I've gone with software RAID because
> support native to the kernel.  Almost all of the IDE RAID cards I
> wouldn't touch with a 10 foot pole.

This one's SCSI,  68-wire connection only.

> Most of these are just doing software raid behind their propritory driver. 
> And if they are doing software RAID, then I'll just use the native kernel
> driver and be in control of my system.

This one has a 68040 on board,  and allows for up to 64M of cache RAM,  and 
will use ECC ram if I get some on there.  :-)

> The only exception is cards made by 3Ware.  I've used these cards in
> servers for the last three years.  There have been native kernel drivers
> for these cards for as long as I've seen them.  Excellent performance,
> inexpensive drives.  Ebay has some deals on the cars as well.

Never heard of them,  but that's nothing new.  I'll have to take a look around 
and see what's to be seen about them.