NEC S1300 Quick Reference Manual page 27

It is recommended that the management server and the NEC
Storage disk array should be connected through a LAN.
They can also be connected through a fibre channel. In this case,
however, if the business server is subjected to a high load,
contention may occur between application I/O and performance
monitoring, performance optimization, or data replication I/O.
The I/O path of each server also needs to be specified in the
Access Control setting. Thus, connection through a LAN from a
separate management server is safer than connection through FC.
If you connect the management server and the disk array through
a LAN, you need to set the network information (e.g., IP address)
for the disk array. Set the information correctly according to the
manual provided with the disk array.
NEC Storage Manager can monitor more than one disk array
simultaneously. However, do not use more than one NEC Storage
Manager to simultaneously monitor a single disk array.
If multiple NEC Storage Manager applications are used to monitor
a single disk array, a repeatedly noticed error or a conflict between
their statistical information of performance may cause operation
trouble.
System Configuration of NEC Storage Manager 4-3