CANDE can service a maximum of 255 stations; however, if you need to accommodate more than 255 stations, it is possible to have multiple copies of the CANDE MCS running on a single large system. Unisys recommends that you use only one copy of the CANDE MCS if you accommodate less than 255 stations.

Running multiple copies of CANDE has some limitations and risks, which range from inaccurate information returned from CANDE to compromising the integrity of files. You must take precautions when users have access to more than one CANDE MCS on a single system.

For example, if you get a file as your work file from CANDE and another user accesses the same file with the GET command from another copy of CANDE, then neither copy of CANDE detects the situation and warning messages indicating that the file is currently in use as a work file are not given.

The following CANDE commands might return inaccurate information or otherwise be adversely affected under certain circumstances.

DISCARD        ?COUNTS
GET            ?REPORT
RECOVER        ?SS
STATUS         ?TO
STOP           ?WHERE

Refer to each of the CANDE commands that are described in CANDE Commands for precautions to take when using a CANDE command in a multiple CANDE MCS environment.