FreeBSD 8.0-BETA4 IBM ServerRaid 8k issues

[George Mamalakis]

Artis, and the rest of the guys, thank you all for your answers.

Ivan, I was thinking of using one of the techniques you mention (create 
two volumes, install fbsd on one of them, and use GTP on the second 
drive), but I was wondering if there would be any "incompatibility" 
issues with tools like df, etc.

Artis, let me get to your comments now:

> Same problem here, thought we got timeouts also on idle boxes.
>
> IBM support told to switch controller channel speed from auto(3Gbps)
> to 1.5Gbps and update ServeRaid firmware. We are currently running
> 5.2.0-15429 (flashing them almost monthly :) ). You can change speed
> in raid bios, in Ctrl-A menu.
> But this issue is only with sata disks, sas works perfectly.
>
>   
In case I do this (since I only have sata drives), will I end up with 
degraded disk performance? Theoretically I assume not, since 1.5 Gbps is 
adequate for *each* disk (it calculates to something like ~178MBps); but 
have you tried it on your disks, and everything works OK since (along 
with performance)?

Thank you all again for your answers, you've been truly helpful!

-- 
George Mamalakis

IT Officer
Electrical and Computer Engineer (Aristotle Un. of Thessaloniki),
MSc (Imperial College of London)

Department of Electrical and Computer Engineering
Faculty of Engineering
Aristotle University of Thessaloniki

phone number : +30 (2310) 994379