Maintenance and Service Guide  9-3
Addendum 108431-001 (11-88) to 
Manual No. 108033-003
For MS-DOS (with the device driver) to support 
any two internal fixed disk drives, with one  
expansion unit, two rules must be followed.
□ A maximum of two controllers may be 
plugged into the system bus.
□ Each controller may support only two fixed 
disk drives.
Example:  With the use of two expansion 
units, a total of 1.2 gigabytes of 
fixed disk storage is available, 
divided into four 300-Megabyte 
volumes. This configuration with 
switch settings is shown in  
Figure 9-1.
NOTE:  For maximum storage the system is  
connected in the same way as duplexing 
or mirroring. The only difference be-
tween maximum storage and mirroring or 
duplexing is that the NOVELL software 
need not be run when the system is con-
figured for maximum storage.
Figure 9-1.  System Configured for 1.2 Gigabytes.