Sun Microsystems StorEdge 3900 Series Reference And Service Manual page 30

Support for cascading switches
A small server, referred to as the Storage Service Processor, is included in each
subsystem and provides support for monitoring and configuration, upgrades of
firmware, and software and diagnostic tools to support effective fault isolation. The
SM
Storage Service Processor supports the Sun StorEdge Remote Response service,
which provides remote monitoring and serviceability. Failure to enable the Sun
StorEdge Remote Response software requires that the customer configure an
alternate way to communicate with the Storage Service Processor through a local
network.
1-2 Sun StorEdge 3900 and 6900 Series 1.1 Reference and Service Manual • July 2002