You mention heavy activity and drive fatigue--is your system thrashing? Maybe it doesn't have enough physical memory to begin with.
If that's not the problem and you just really have an incredibly disk-intensive application, you might consider a solid state disk if it's really that important. You can buy them with IDE or SCSI interface, so they look and act like regular hard drives. > Does Linux support any RAM drive(s)? How much faster are these drives over > an attached drive? Is there a CPU performance penalty? > > We would like to replace our mechanical drive with a small (<4GB) RAM drive. > The mechanical drive is getting pounded 24 hours a day. In addition to > fatigue, the extra performance would be nice. > > Is it true the x86 architecture is limited to 32 bit addressing and will > never support more than 4GB of address space? Trying to see what the > limitation will be. > > I know this is a lot of questions. As always, any help is appreciated. > > Regards, > > Paul