systems on the same network, or on different networks (MSA 2060/2062 SAS Storage and MSA 1060 SAS Storage
systems do not support replication). As you consider the physical connections of your system—specifically the
connections for replication—keep several important points in mind.
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Ensure that controllers have connectivity between systems, whether the destination system is co-located or remotely
located.
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For MSA 1060/2060/2062 Storage systems, qualified FC SFPs can be used for host I/O or replication, or both.
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For MSA 2060/2062 Storage systems, qualified iSCSI SFP and DAC cable options can be used for host I/O or
replication, or both.
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For MSA 1060 Storage systems, qualified 10GBase-T cable options can be used for host I/O or replication, or both.
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The storage system does not provide for specific assignment of ports for replication. However, this can be
accomplished by using virtual LANs for iSCSI and zones for FC, or by using physically separate infrastructure.
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For remote replication, ensure that all ports used for replication are able to communicate appropriately with the
remote replication system by using:
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The
query peer-connection
CLI command (see the CLI
Reference Guide for more information) or
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The SMU > Settings > Peer Connections panel (see the Storage Management Guide for more information)
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Allow a sufficient number of ports to perform replication. This permits the system to balance the load across those
ports as I/O demands rise and fall. If some of the volumes replicated are owned by controller A and others are owned
by controller B, then allow at least one port for replication on each controller module—and possibly more than one
port per controller module—depending on replication traffic load.
Conceptual cabling examples address cabling on the same network and cabling relative to different networks.
IMPORTANT Remote Snap must be licensed on all systems configured for replication, and the controller module
firmware must be compatible on all systems licensed for replication.
NOTE Systems must be correctly cabled before performing replication. See the following documents for more
information about using Remote Snap to perform replication tasks:
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HPE MSA Remote Snap Software Technical white paper
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HPE MSA 1060/2060/2062 Best Practices
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HPE MSA 1060/2060/2062 Storage Management Guide
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HPE MSA 1060/2060/2062 CLI Reference Guide
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HPE MSA Event Descriptions Reference Guide
To access MSA documentation, see the Hewlett Packard Enterprise Information Library:
.
Cabling for replication
This section shows example replication configurations for the following products:
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MSA 2060/2062 FC Storage and MSA 2060/2062 iSCSI Storage
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MSA 1060 FC Storage and MSA 1060 iSCSI Storage
Example illustrations provide conceptual examples of cabling to support Remote Snap replication.
NOTE Simplified versions of controller enclosures are used in cabling illustrations to show host ports used for I/O or
replication, given that only the external connectors used in the host interface ports differ.
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Replication supports FC and iSCSI host interface protocols.
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The controller enclosure rear panels show 4-port and 2-port host interface configurations.
36
Chapter 4
Connecting hosts