server unresponsive after several days

[Barry Brimer]

> I have a server that serves (pun inevitable) as storage array on my network.
> This machine works fine, except for the strange fact that, a few days after
> booting up, the machine, while still on, stops responding to pings, to keyboard
> input, to ssh requests, and anything else I can throw at it.
>
> Would anyone like to suggest a troubleshooting approach to this? Has anyone
> heard of any such thing happening? The OS is Red Hat Enterprise Linux AS release
> 4 (Nahant Update 3). Is this, in your experience, more likely to happen due to
> the hardware being wonky, or the OS having some bug?

I might try unplugging and replugging the keyboard.  I also would probably 
add a serial console to it for another way to investigate.  I also 
recommend moving to the latest kernel.  Are there any interesting log 
messages?

Barry