Information about maintaining your SAN Volume Controller and
the resources it manages are included in the
topics that follow. Among these topics, you can find information about
maintaining
the software that runs on the SAN Volume Controller.
If one
SAN Volume Controller is
being serviced, the other can keep the SAN operational.
With concurrent maintenance, all field replaceable units (FRUs) can
be removed,
replaced, and tested on one
SAN Volume Controller while
the SAN and host systems are operating
and doing productive work.
Attention: Do not remove the
power from
both SAN Volume Controllers
unless the procedures instruct you to do so.