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Connecting hosts
1 Gb iSCSI protocol
The MSA 2050 SAN controller enclosures support two controller modules using the Internet SCSI interface protocol for
host port connection. Each controller module provides four iSCSI host ports configured with an RJ-45 SFP supporting
data rates up to 1 Gb/s, using either one-way or mutual CHAP.
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 1 Gb 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 1 Gb iSCSI hosts directly, or through a switch used for the 1 Gb 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.
Host connection configurations
The MSA 2050 controller enclosures support up to eight direct-connect server connections, four per controller module.
Connect appropriate cables from the server HBAs to the controller host ports as described below, and shown in the
following illustrations.
NOTE:
Not all operating systems support direct-connect. For more information, see the Single Point of Connectivity
Knowledge (SPOCK) Storage compatibility matrix:
www.hpe.com/storage/spock
.
To connect the MSA 2050 SAN controller to a server or switch—using FC SFPs in controller ports—select Fibre Channel
cables supporting 8/16 Gb data rates, that are compatible with the host port SFP connector (see the QuickSpecs). Such
cables are also used for connecting a local storage system to a remote storage system via a switch, to facilitate use of the
optional Remote Snap replication feature.
To connect the MSA 2050 SAN controller to a server or switch—using 10GbE iSCSI SFPs or approved DAC cables in
controller ports—select the appropriate qualified 10GbE SFP option (see the QuickSpecs). Such cables are also used for
connecting a local storage system to a remote storage system via a switch, to facilitate use of the optional Remote Snap
replication feature.
To connect the MSA 2050 SAN controller to a server or switch—using the 1 Gb SFPs in controller ports—select the
appropriate qualified RJ-45 SFP option (see the QuickSpecs). Such cables are also used for connecting a local storage
system to a remote storage system via a switch, to facilitate use of the optional Remote Snap replication feature.