Contents of the READ.ME file
Aditional information about OPTIM.COM ...
This program is an attempt to optimise the performance of third party
fixed disks which are added to IBM clones. It is fully tested on I.B.M.
Amstrad PC1512 and Olivetti. IT IS NOT GUARANTEED TO WORK ON OTHER MACHINES
The program completes a test format of cylinders 0 and 1 at each interleave
setting. Then 8 passes are made to average out the time taken to access
these cylinders. Once the lowest access time has been found, the
whole disk is formatted to that interleave setting.
THIS IS A LOW LEVEL FORMAT - IT REWRITES SECTOR ID'S AND SUCH.
DATA CAN NOT BE RECOVERED AFTER SUCH A FORMAT PROCESS.
***** WARNING *****
I recently ran this program inadvertently on a Compaq 386 machine which
as any clod knows, has a 16 bit disk controller access system.
I SCREWED UP THE DISK. Track zero was completely inaccessible and the
machine was incapable of recognising the disk. I could only rescue it
when a good friend let me have a copy of the Compaq Diagnostics Disk
which has a low level format program on it. (Phew!)
PLEASE PLEASE PLEASE learn from this. Don't try OPTIM unless you have
some other way of reformatting your hard disk if things should go wrong.
Now that I've got that off my chest, OPTIM really works extremely well
in matching particular disks with specific processors. A colleague of
mine and I both bought Seagate ST225 20Mbyte fixed disks for our
respective machines. Same controllers and everything. His machine
was an Olivetti M24 and mine is an I.B.M. XT. After installation, my
disk was timed at better than three times faster than the Olivetti!!!
This started us thinking and tinkering, and OPTIM was the result.
Now that we've run OPTIM on both machines, his is slightly faster than
mine and both are faster than mine was before OPTIM. Even though the
Disk hardware is identical, the optimum setting on the Olivetti is
different to the one on the I.B.M. and neither is the same as the
manufacturers recommendation! So - if you can use, do so - and your
computing should be better and faster for it. I'm still developing this
so please let me know what results you get. You can reach me on :-
LEICESTER (0533) 883490 Day or Night