NonStop NS2200 Series Planning Guide

Enterprise Storage System — ESS (Optional)
NOTE: Connections to ESS and fibre channel devices are only supported on the NonStop NS2200
commercial system.
An Enterprise Storage System (ESS) is a collection of magnetic disks, their controllers, and a disk
cache in one or more standalone cabinets. ESS connects to the NonStop NS-series systems either
directly via Fibre Channel ports on the Storage CLIM (direct connect) or through a separate storage
area network (SAN) using a Fibre Channel SAN switch (switched connect). For more information
about these connection types, see your HP service provider.
NOTE: The Fibre Channel SAN switch power cords might not be compatible with the modular
cabinet PDU. To order replacement power cords for the SAN switch that are compatible with the
modular cabinet PDU, contact your HP service provider.
Cables and switches vary, depending on whether the connection is direct, switched, or a
combination:
Fibre Channel SwitchesCablesConnection
02 Fibre Channel (FC) HBA interfaces
on Storage CLIM (LC-MMF)
1
Direct connect
1 or more4 FC HBA interfaces on Storage CLIM
(LC-MMF)
Switched
12 FC HBA interfaces on Storage CLIM
for each direct connection
Combination of direct and switched
14 FC HBA interfaces on Storage CLIM
for each switched connection
1
Customer must order the FC HBA interfaces on the Storage CLIM.
Figure 2 shows an example of connections between two Storage CLIMs and an ESS via separate
Fibre Channel switches:
Figure 2 Connections Between Storage CLIMs and ESS
38 NonStop NS2200 System Overview