> Does Linux have issues w.r.t. UPTIME? That is "Is there any maximum time
> limit (duration) between 2 shutdowns because of some variable which gets
> filled?"
the kernel variable "jiffies" which is used to track uptime will overflow
in approximately 497 days. (resolution=10 msecs & unsigned long - 32 bits on
the i386). Don't know if this overflow can cause any adverse problems
(other that the uptime command showing an incorrect value).
> Provided all the resources are in place (no UPS maintenance required), what
> is the maximum duration in days the Linux box will be up? If so, what are
> the constraints?
Though this may be infinite in theory (assuming no kernel problems due to the
jiffies overflow), there are practical issues like memory corruption. In
spite of the extremely low bit error rates in todays memory technology and
error correction technologies employed, the probability of an undetected
error occurring in your memory area (due to say an alpha particle hit) is
still non-zero. I don't know what the numbers are, but if you wait long
enough, that corruption is bound to occur !!
>
> Finally, does Windows (95/98/NT) have this UPTIME issue?
>
The above limit is valid for any OS. Not aware of any other issues.
Kala
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