ethernet and switches, was Re: [rescue] Mozilla Firefox
pat at computer-refuge.org
Fri Apr 23 18:23:33 CDT 2004
On Friday 23 April 2004 18:08, Eric Dittman wrote:
> Most big companies use some kind of FC SAN. If you buy stuff off
> eBay FC is also affordable for home since FC disks seem to be
> inexpensive. The only thing you'd need would be a FC backplane (or
> use T-cards) to connect the drives.
FC generally sucks, due to its lack of standardiztion. It's easy to
find gear, switches, and enclosures/drives that don't work together,
although this should be getting better.
I managed to pick up 4.8TB of FC storage + another 1.4TB for my S/390
for $2700 just recently. That's $0.43/GB. Not too bad (although it's
fairly large/power hungry, being a total of 5 racks in size: 2 for the
FC and 3 for the S/390 (EMC) system).
> The new SATA and serial SCSI look interesting since SATA uses the
> SCSI command set (and IIRC can be connected to serial SCSI
> controllers, but I could have that backwards). The only drawback
> with SATA is the one drive/controller limit.
Well, you can't put more than one drive on a cable. You can certainly
have more than one drive on a card, although anything more than a 4
drive card costs way too much. Yes, I realize you said "controller",
but most people would take that to mean "controller card". :)
For the money and reliability and expandability (but not power usage),
I'd go with used FC gear.
Purdue University ITAP/RCS --- http://www.itap.purdue.edu/rcs/
The Computer Refuge --- http://computer-refuge.org
More information about the rescue