FYI

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          TITLE: Iomega Bernoulli Drive with DR Multiuser DOS 5.1
   DOCUMENT ID#: FYI-M-1912
           DATE: 26OCT92
        PRODUCT: DR Multiuser DOS
PRODUCT VERSION: 5.1
     SUPERSEDES:


DR Multiuser DOS is compatible with the Iomega Bernoulli Drive. The
following describes what hardware and software have been tested. 
Compatibility is not assured with other Bernoulli drive models or
versions of device drivers.   


Hardware:  Bernoulli Transportable Drive + 90 meg cartridges
           Iomega PC2B/50 Host Adapter
           386/33 DX, standard VGA, IDE fixed drive, 1.2 and 1.44
           floppy drives

Software:  DR Multiuser DOS, ver 5.1
           Iomega DOS OAD Utilities ver 1.01           
           Iomega RCD Utilities ver 7.02


Results of compatibility testing:

1.   DR Mulituser DOS recognizes the 90 meg Bernoulli drive when
     initiated as a secondary drive using the Iomega device driver
     DOSOAD.SYS.

2.   The Bernoulli OAD Install program runs under Multiuser DOS.
     Any existing CONFIG.SYS file is modified to load the DOSOAD
     drivers.  The DEVICE= commands which load these drivers must
     be copied to the DR Multiuser DOS file CCONFIG.SYS in order
     for the Bernoulli drive to initiate under Multiuser DOS.

2.   The Iomega device driver RCD.SYS ver 7.02 is NOT compatible
     with DR Multiuser DOS.  Upgrade to the OAD driver.

2.   For smaller Bernoulli drives, the RCD drivers ver 4.x are
     compatible with Multiuser DOS.

3.   Mulituser DOS cannot be loaded on the bootable Bernoulli
     drive.

4.   Care should be taken in selecting the base port address for
     the Iomega Host Adapter.  This address should not conflict
     with any other devices such as a multiport card or network
     card.

5.   Jumpers on the PC2B/50 Host Adapter should be set to disable
     ROM addressing.  Disabling ROM addressing will provide more
     usable application memory and avoid possible conflict with
     network cards.

6.   Host Adapter PC2B/50 uses hardware address IRQ 5 by default.
     This is the same IRQ assigned to LPT2 for a 2nd parallel
     printer port.  The only alternate IRQ setting for the PC2B/50
     is IRQ 7, which is normally assigned to LPT1.  

     To avoid address conflicts, it is recommended to keep the
     setting of IRQ 5 and not install any LPT2 port on the
     Multiuser DOS system. 

     If a network card is set to IRQ 5 it's hardware address must
     be changed to avoid conflict.