•
Double Density 256 x 18 = 4608 bytes per cylinder (4.5K)
Single Density 256 x
10 = 2560 bytes per cylinder (2.5K)
If you specify Banks 1 or
2,
then all of the bank (32K) is used. If you
specify option
(]J,
then Memdisk uses Banks 1 and 2 (64K).
After selecting which bank you want to use, you see:
Sinsle
or
Double
Density
<S,D:>?
This allows you to adjust the way memory is formatted. You get the
same amount of space at single density as you do at double density,
but the number of sectors per cylinder differs.
This feature allows mirror image backups to be performed, which
allows data to be loaded into and out of Memdisk much faster.
Memdisk looks exactly like a floppy disk to a program.
If you selected Bank
0 (Double Density), the following message is
displayed:
Note:
Each
CYlinder
e~uals
a.50K
of
space.
NUMber
of
free
cylinders
l-N
?
N can be from 1 to 12. The value of N varies according to the number
of other drivers resident
in
memory.
If you specified Bank
0 (Single Density), the following message is
displayed:
Note:
Each
CYlinder
e~uals
2.50K
of
space.
NUMber
of
free
CYlinders
3-N
?
Enter the number of cylinders you want Memdisk to use
in
Bank
0,
using the formula
on
the previous page. N can be from 3 to
7.
After you enter the configuring information, the following prompt is
displayed:
Do
,'ou
1,lish
to
Forlrlat
it
<Y,N:>?
If you have not used Memdisk before, press 00. Formatting
is not optional upon initial installation. MEMDISK is not initially
installed unless you format
it.
If you have used Memdisk and the system failed for some reason,
press
(]J
to retrieve files that were left
in
Memdisk when it was last
used. Remember that if the power went off, the Memdisk contents
were erased.
If you answered the format question with
00, you see the message:
Verifyins
RAM
Cylinder
NN
Verifyins
COMPlete,
RAM
sood
Directory
has
been
placed
on
CYlinder
1
A-97
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