[WBEL-users] Software raid and User Mode Linux CD burning on WBEL

[Alex Georgiev]

Bill Davidsen wrote:

> 
> Two comments on that, (1) I have never header of anyone doing that, and 
> (2) I wouldn't bet that hardware issues wouldn't take down the real 
> kernel anyway. The issues I've seen are caused by things like starting a 
> burn with no CD, data overrun, mounting CD for read while burning. To 
> some extent that can be cured by better practices. Do let us know if UML 
> cures the problem, I'm looking at UML for a server farm, so I can move 
> to a real machine as load grows.

Whel, always the ide_scsi module crashes the kernel. The way I see it,.
in an idealized situation, a driver, should not crash if there is no media in the drive, or
if media is crappy ... etc, a programm should not crash because of its input.
As I know the UML kernel is just another process in the host operating system,
therefore I hope, a kernel panic should just halt this process. I am qurious to
see that.

> 
> In general it's not an issue, if you have bad media, scrap it! I'm up 
> around 100 burns without an issue, and uptime in the three digits since 
> an unplanned reboot.
> 

> RAID-1, and I suggest using Promise, which is also cheap and should 
> work. Overhead should be low, even with a small system I see virtually 
> no CPU used unless it's doing rebuild or similar. Put the drives on 
> separate cables (you knew that).
> 

Could you tell me the exact Promise controller that you are using?
I shall buy this one.

Best regards
ageorgiev