HP MSA 2050 User Manual page 27

NOTE: MSA 2050 SAN controller enclosures support the optionally-licensed Remote Snap replication feature. Remote
Snap supports FC and iSCSI host interface protocols for replication. Replication sets can be created and viewed using
either the SMU or CLI commands.
Fibre Channel protocol
The MSA 2050 SAN controller enclosures support two controller modules using the Fibre Channel interface protocol for
host connection. Each controller module provides four host ports designed for use with an FC SFP supporting data rates
up to 16 Gb/s. When configured with FC SFPs, MSA 2050 SAN controller enclosures can also be cabled to support the
optionally-licensed Remote Snap replication feature via the FC ports.
The MSA 2050 SAN controller supports Fibre Channel Arbitrated Loop (public or private) or point-to-point topologies.
Loop protocol can be used in a physical loop or in a direct connection between two devices. Point-to-point protocol is
used to connect to a fabric switch. Point-to-point protocol can also be used for direct connection, and it is the only option
supporting direct connection at 16 Gb/s. See the set host-parameters command within the CLI Reference Guide for
command syntax and details about connection mode parameter settings relative to supported link speeds.
Fibre Channel ports are used in either of two capacities:
• To connect two storage systems through a Fibre Channel switch for use of Remote Snap replication.
• For attachment to FC hosts directly, or through a switch used for the FC traffic.
The first usage option requires valid licensing for the Remote Snap replication feature, whereas the second option
requires that the host computer supports FC and optionally, multipath I/O.
TIP: Use the SMU Configuration Wizard to set FC port speed. Within the SMU Reference Guide, see "Using the
Configuration Wizard" and scroll to FC port options. Use the set host-parameters CLI command to set FC port options,
and use the show ports CLI command to view information about host ports.
10GbE iSCSI protocol
The MSA 2050 SAN controller enclosures support two controller modules using the Internet SCSI interface protocol for
host connection. Each controller module provides four host ports designed for use with a 10GbE iSCSI SFP or approved
DAC cable supporting data rates up to 10 Gb/s, using either one-way or mutual CHAP (Challenge-Handshake
Authentication Protocol).
TIP: See the topics about Configuring CHAP, and CHAP and replication in the SMU Reference Guide.
TIP: Use the SMU Configuration Wizard to set iSCSI port options. Within the SMU Reference Guide, see "Using the
Configuration Wizard" and scroll to iSCSI port options. Use the set host-parameters CLI command to set iSCSI port
options, and use the show ports CLI command to view information about host ports.
The 10GbE iSCSI ports are used in either of two capacities:
• To connect two storage systems through a switch for use of Remote Snap replication.
• For attachment to 10GbE iSCSI hosts directly, or through a switch used for the 10GbE iSCSI traffic.
The first usage option requires valid licensing for the Remote Snap replication feature, whereas the second option
requires that the host computer supports Ethernet, iSCSI, and optionally, multipath I/O.
Connecting the enclosure to data hosts 27