[BlueOnyx:07067] Re: severe problem with disk integrity

[Michael Stauber]

Hi Richard,

> Summary of changes:
> 
> * There is a severe problem with disk integrity.
>  - [[base-dma.dma_off_drives,drives=/dev/hdc,

Typically that happens if you got an IDE drive there, were DMA transfers are 
disabled. In your case the complaint was for /dev/hdc, which by itself 
warrants a yellow warning light in that case. Active Monitor tried to enable 
DMA transfers, but failed. That then gave you a red light.

The actual RAID1 array may be sync'ed and everything, but if you got an IDE 
drive there where DMA transfers are not working or disabled, then that's a 
serious performance issue, as the drive will be a hell of a lot slower.

BUT: According to the SMART status /dev/hdc is a WD5000AAKS-00A7B0, which is a 
SATAII drive, not IDE. 

Which leads to an entirely different issue here: Apparently you're running 
SATAII drives in "compatible" mode (as configured in your BIOS), which also is 
a performance relieability. It's like dropping an anchor.

-- 
With best regards

Michael Stauber