I'm looking to to upgrade & extend the life of some old pc's. Adding
another IDE hard disk on the same ide cable will increase the hard disk
capacity of the machine of course, but could it also make the machine
slightly quicker as well?
E.g. if on windows you set the pagefile on the primary slave hdd. I'm
thinking about 2 read/write heads available instead of 1.
What do you think?
Ideally you would not have them both on same cable, isn't
that possible?
Do the systems have plenty of memory? That is the first
step towards decreasing the performance penalty from hitting
the pagefile for *real* virtual memory needs opposed to just
mapping out unused memory space.
Setting the pagefile on the second drive will help in all
those situations it's hitting the file, though as another
poster mentioned, if the 2nd drive is much slower than the
primary (OS) drive, the benefit diminishes or goes away
entirely.
Often a second drive is also used to split up file I/O, for
example the operating system is on one drive, the
applications on the other, and when working with large files
in an application, those are stored opposite the (OS or
applications, whichever are the more demanding concurrent
filesystem I/O).
With certain applications using fairly large files such as
video editing, it can also make sense to put the larger
(often uncompressed) files opposite the most used OS or app
files and the compressed files on the same drive as the
app/OS. In other apps the app will allow specifying a
scratch disc and that would again be put on the lesser used
drive of the two at the time of the job run.
Overall the easy answer to just put a NEW drive in the
system and max out the memory. It will help a lot for
general purpose use. For a more workstation-like single
use that heavily stresses the CPU, there's not much the
drives will do to offset that.