[geeks] Princeton Univ. Surplus haul today...

[Sridhar Ayengar]

Lionel Peterson wrote:
>> From: Sridhar Ayengar <ploopster at gmail.com>
>> Date: 2006/08/23 Wed AM 11:01:33 CDT
>> To: The Geeks List <geeks at sunhelp.org>
>> Subject: Re: [geeks] Princeton Univ. Surplus haul today...
> 
>> Lionel Peterson wrote:
>>> OS/X 10.4 gives me the option to do a mirror (RAID 1) or striped (RAID 0) filesystem, if I put another 100 Meg IDE HD on the same on-board controller will I get a performance improvement with RAID 1, or is the on-board controller "bad"?
>> If they're on the same channel, you won't get a speed boost because only 
>> one IDE device per channel can talk at any given time.
> 
> So striped might be of use (if I wanted to go to 200 Gig of storage in one HD image), but mirrored would actually slow the system down - unless I strip out the IDE Zip Drive and put the other 100 Gig HD on the channel with the DVD-ROM drive...

Actually striped will suck too.  Striped helps because you get twice the 
throughput by reading two stripes simultaneously from two drives.  If 
you want to do IDE RAID, I highly recommend one drive per bus.

I just use SCSI, but that gets expensive.

Peace...  Sridhar