Scot Hetzel wrote: >>my swap labels are the following ones... >> >>/dev/da0s1b >>/dev/da1s1b >>/dev/da2s1b >> > > What we should be looking at are the disklabels for those devices: > > disklabel /dev/da0s1 > > As the swap partition could be overlapping with your root partition. > Then when your system crashed, the system wrote to the end of your > swap partition, which wrote over your root partition. i configured the labels some moths ago from within sysinstall when i installed freebsd, they realy shouldnt overlap. im heavily using my swap, so it should have crashed earlier that root label... > > >>and they are located at the very beginning of all hard drives for speed >>reasons... >> > > Actually, you want your swap partition as close to the center of the > hard drive as possible to minimize the movement of the drive heads, > thus increasing the speed. > > Scot seems i was too fixated onto continouously read/write speed alone being faster at the beginning ignoring the reposition of the heads from label to label... but i still guess there is a chance the kernel does wait and read/write in chunks, minimizing head-reposition over long distances, doesnt it? there are even tunables about swap... hi_swap and so on wich are realy of use... should i benchmark where to locate and how to size it or will i only gain performance far from being noticeable? EugeneReceived on Thu Jul 29 2004 - 22:36:38 UTC
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