crash@calgary.UUCP (Glen ) (09/25/87)
A while ago I posted an article about an building an external
ram disk. The project will go ahead!!! Thanks to the people who
sent suggestions.
I did some timings for compiles on the hard disk vs ram disk.
Compiling the terminal program posted here years ago by Bammi:
Everything on hardisk: 00:03:50
" " ramdisk 00:01:30
The final marketing will probably be a kit. Simply,you get the
custom chip and a pc board. Depending on what rams you use
it will have a max of 8 meg. You supply the rams, power supply, box.
Some people also seemed confused in there replies, again
here are the straight forward advantages:
o Doesn't use system core, this is still an advantage
even if you have 4 meg st.
o lives even if you power down the ST
o less wear on your disk drives
o it's faster than a hard disk, I don't know
by how much yet. The above timings are a bit of
cheat as the ram disk is in system memory. I have to
figure out the transfer rate of the system ramdisk
and then I should be able to estimate the performance
of th external ram disk.
Don't expect to see this thing before Xmas, as I'm very low priority
in the fab queue.
To make your HARD DISK quieter put it on some foam, A desk makes such
a good sounding board. Works for floppies too.
Does anyone out there use PROFF and fixed the ".wr" so that it
doesn't do a break???
Since my motorcyle accident the systems people changed login id
hence everything. Mail to me now goes something like this:
....!alberta!calgary!crash
^
|_ Where's Calgary? check out the current
of Time.
Glen Stone