Chapter 4
Connecting hosts
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4
Connecting hosts
Host system requirements
Data hosts connected to HPE MSA 1060/2060/2062 Storage systems must meet requirements described herein.
Depending on your system configuration, data host operating systems may require that multipathing is supported.
If fault-tolerance is required, then multi-pathing software may be required. Host-based multipath software should be
used in any configuration where two logical paths between the host and any storage volume may exist at the same
time. This would include most configurations where there are multiple connections to the host or multiple connections
between a switch and the storage.
For details about supported operating systems, multi-pathing enablement, and compatibility matrix information
pertaining to MSA 1060/2060/2062 enclosures, see
.
Host interface protocols
Fibre Channel protocol
MSA 1060/2060/2062 FC controller enclosures support point-to-point or Fibre Channel Arbitrated Loop (public or
private) technologies. 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 16Gb/s. Loop protocol can be used in
a physical loop or in a direct connection between two devices. 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:
l
To connect two storage systems through a Fibre Channel switch for use of Remote Snap replication.
l
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, available with the HPE MSA
Advanced Data Services license, whereas the second option requires that the host computer supports FC and optionally,
multipath I/O.
TIP Use the SMU to view or change FC port settings, as described in the Storage Management Guide. Use the
set
host-parameters
CLI command to set FC port parameters for communication with hosts, and use the
show ports
CLI command to view information about host ports in each controller module. See the CLI guide for information about
commands and syntax.
iSCSI protocol
MSA 1060/2060/2062 iSCSI controller enclosures support Internet SCSI (Small Computer System Interface). CHAP
(Challenge Handshake Authentication Protocol) is supported for protecting the storage system from unauthorized
access.
TIP See the topics about configuring CHAP and about CHAP and replication in the Storage Management Guide.
The iSCSI ports are used in either of two capacities:
l
To connect two storage systems through a switch for use of Remote Snap replication.
l
For attachment to iSCSI
hosts directly, or through a switch used for the 10GbE iSCSI traffic.