26
Connecting hosts
4
Connecting hosts
Host system requirements
Data hosts connected to HPE MSA 2050 arrays must meet requirements described herein. Depending on your system
configuration, data host operating systems may require that multi-pathing is supported.
If fault-tolerance is required, then multi-pathing software may be required. Host-based multi-path 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.
•
Use native Microsoft MPIO DSM support with
Windows Server 2016
and
Windows Server 2012
. Use either the
Server Manager or the command-line interface (mpclaim CLI tool) to perform the installation. Refer to the following
web sites for information about using Windows native MPIO DSM:
(search the site for “multipath I/O overview”)
•
Use the HPE Multi-path Device Mapper for Linux Software with Linux servers. To download the appropriate device
mapper multi-path enablement kit for your specific enterprise Linux operating system, go to
http://www.hpe.com/storage/spock
.
Connecting the enclosure to data hosts
A
host
identifies an external port to which the storage system is attached. The external port may be a port in an I/O
adapter (such as an FC HBA) in a server. Cable connections vary depending on configuration. Common cable
configurations are shown in this section. A list of supported configurations is available on the Hewlett Packard Enterprise
site at:
http://www.hpe.com/support/msa2050
:
•
HPE MSA 2050 Quick Start Instructions
•
HPE MSA 2050 Cable Configuration Guide
These documents provide installation details and describe supported direct attach, switch-connect, and storage
expansion configuration options for MSA 2050 products. For specific information about qualified host cabling options,
see
“Cable requirements for MSA 2050 enclosures” (page 18)
.
MSA 2050 SAN
MSA 2050 SAN models use Converged Network Controller technology, allowing you to select the desired host interface
protocol(s) from the available FC or iSCSI host interface protocols supported by the system. The small form-factor
pluggable (SFP transceiver or SFP) connectors used in host ports are further described in the subsections below. Also
see
for more information concerning use of these host ports.
IMPORTANT:
Controller modules are not shipped with pre-installed SFPs. Within your product kit, locate the qualified
SFP options, and install them into the host ports. See
“Install an SFP transceiver” (page 77)
.
IMPORTANT:
Use the
set host-port-mode
CLI command to set the host interface protocol for MSA 2050 SAN host
ports using qualified SFP options. MSA 2050 SAN models ship with host ports configured for FC. When connecting host
ports to iSCSI hosts, you must use the CLI (not the SMU) to specify which ports will use iSCSI. It is best to do this before
inserting the iSCSI SFPs into the host ports.