Versions of OpenVMS Alpha
that support MSCP failover to a served path (Version 7.3–1
and higher) but serve only a subset of their disks.
If you have chosen to serve only a subset of the disks
in your configuration, you must use this configuration method for
site recovery for the disks that are not served. One reason to serve
only a subset of your disks is that failover of the served disks,
from a Fibre Channel interconnect to the LAN interconnects and the
inter-site link, can put a very heavy load on these interconnects,
which can seriously degrade performance.