Custom kernels causing Promise ATA RAID to go down

Alastair G. Hogge agh at
Thu Jun 10 14:18:39 GMT 2004

On Thursday 10 June 2004 20:57, Michael W. Oliver wrote:
> On 2004-06-10T14:28:48+1000, Alastair G. Hogge wrote:
> > Thought about this. But I don't think it is the case. I've had the 2 HD
> > for sometime now, and I they used to 24/7. I have 3 fans running in my
> > tower case.
> >
> > I've just re-built world again recently and I'm still getting problems.
> >
> > I need to get that other machine going.
> I am using an on-board Promise controller, and had similar problems when
> first setting up this server.
> # pciconf -lv | grep -B1 -A3 Promise
> atapci0 at pci2:2:0:       class=0x010485 card=0x1275105a chip=0x5275105a
> rev=0x01 hdr=0x00 vendor   = 'Promise Technology Inc'
>     device   = 'PDC20276 Ultra133 TX2/FastTrak TX Lite EIDE Controller'
>     class    = mass storage
>     subclass = RAID
My on-board controller is slightly different:
# pciconf -lv | grep -B1 -A3 Promise
atapci1 at pci0:14:0:      class=0x010400 card=0x809e1043 chip=0x3376105a 
rev=0x02 hdr=0x00
    vendor   = 'Promise Technology Inc'
    device   = 'PDC20376 FastTrak 376 SATA/RAID Controller'
    class    = mass storage
    subclass = RAID

> What I discovered was that my cables were too long.  I had purchased
> those round cables in order to reduce air flow restrictions in the case,
> but at the time, I could only get 36" cables.  After quite a few lost
> mirrors, I found out that those cables _should_ be a maximum of 18"
> long.  I replaced the 36" cables with 18" cables and haven't had a
> problem since.
My cables are quite small and un-obtrusive. But I will look into re-organizing 
the box's guts....all thou I only just did that a couple of months 
ago..including a air blasting to get ride of dust and crap.

> I don't know if this will help you, but it certainly fixed the problems
> that I was having.
Thanks for the info thou, we shall see how I go.

> Good luck.
Thanks :-) I need it

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