On Fri, 28 Jan 2000, Steve Lee wrote:
> the new redhat cd comes built into the cd.
> i have the mylex 250. works great.
One of the types of RAID controllers I've been using quite a bit are
host-independent RAID boxes. They sit externally on your SCSI chain and
act as a single SCSI ID. The host machine actually only sees a scsi
device, the raid controller actually handles all of the parity and
mirroring stuff.
This makes it very easy to plug into any system.
They are controlled via a serial cable and the one I commonly use (a
CMD-5440 [www.cmd.com]) fits into a 5 1/4" drive bay. It has one host
channel and three drive channels, allowing up to 45 disks to be connected.
Each virtual drive you create appears as a seperate LUN on a single SCSI
ID. I believe that Enlight also makes a controller of this style that is
cheaper, but it only has one drive channel I bleive.
Extremely easy to work with and versitile and I recommend them (and this
model in particular) very heartily. They run about $1500 or so plus any
cabineting you might need to go with it.
Geek.NET uses one of these for its drive array (8x9GB + 4x36GB). I have
had some problems booting off of the RAID, so I plugged in a single 9GB
10kRPM scsi onto the motherboard's SCSI controller (which also controlls
the RAID) internally and use that for /boot and other things like swap,
temp space, logging and mqueue...things written to constantly which
doesn't jibe with RAID5 very well.
Flawless operation and rocksteady performance.
=-=-=-=-=-=
Robert Hayden [EMAIL PROTECTED] UIN: 16570192
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