[CentOS] PCI-X/PCIe RAID controller.

Sat Apr 9 13:14:05 UTC 2011
Drew <drew.kay at gmail.com>

> cheap scsi raid?  good luck.   maybe something on ebay, but then its
> Caveat Emptor, and likely the raid batteries will be dead or dying.
> What speed is your scsi backplane?  you can't get Ultra/320 speeds
> across older backplanes that were designed for U80 or U160 speeds.  in
> fact, I've had a few backplanes that were supposed to be U320 but only
> worked reliably at U160 speeds, would get SCSI protocol errors when
> pushed under high IO loads at U320.     64bit 33Mhz PCI will sustain
> about 200MB/sec, which is about all you can get out of a single channel
> of U160 or slower SCSI anyways.

In that case there's no real point upgrading. :-) The drives are U160's.

I was just hoping a slightly newer card might be available that'd give
me a speed boost for cheap. :-)


"Nothing in life is to be feared. It is only to be understood."
--Marie Curie