In message <[EMAIL PROTECTED]>, John Pettitt writes: > Ronald L. Rosson Jr. wrote: > > I currently have a net4801-60 running pfsense as my firewall. I am > > looking for Hard drive recommendations for drives that can handle > > being in the case of a 4801. Last one over heated in just under a year. > > I gave up after drilling holes and installing a small fan the drive > still didn't last (and it was an enterprise rated drive) - I switched to > a CF based setup (m0n0wall) in the end.
Overheating in just under a year? You know the Newton's law of cooling, right? dQ/dt = C*(T_0-T_a) where T_0-T_a is the difference of temperature between the object and its surroundings. How can a hard disk drive (or any other object) be heating for a year? On the other hand, it is an exponential decay... the drive will be fried in just a few hours! It is easier than all that... you need a drive that is rated for a power-on hours (POH) of at least 700 hour/month. It is not a heat related problem, it is a mechanical problem. What is the POH of that "enterprise" drive? perhaps four hours day? I guess that "enterprise" is just a buzzword for some manufacturers. Get a real enterprise drive rated for 700 hour/month and this problem is solved. For example, the Hitachi E7K100 drives (not the 7K100 ones). Just look at the specs of the drive before buying. Igor. _______________________________________________ Soekris-tech mailing list [email protected] http://lists.soekris.com/mailman/listinfo/soekris-tech
