Hitachi TrueCopy for IBM z/OS User and Reference Guide (T5211-96001, June 2007)

2-62 About TrueCopy for z/OS Operations
Hitachi Universal Storage Platform V TrueCopy for IBM z/OS User’s Guide
Server Priority Manager
The Server Priority Manager (SPM) software can give higher priority to the I/O
operations of the server that requires the high processing performance than
the I/O operations of the other servers. SPM can set the priority of I/O
operation to ports, but if the remote copy is performed with the fibre-channel
interface connection, the initiator ports do not support the Server Priority
Manager option. For further information on SPM, please refer to the
Performance Manager User's Guide.