HP MSA Controllers - Manual (Page 59)

HP P2000 G3 FC/iSCSI MSA System User Guide 59
Isolating Remote Snap replication faults
Cabling for replication
Remote Snap replication is a disaster-recovery feature that performs batch replication of block-level data
from a primary volume in one P2000 G3 MSA System controller enclosure to a secondary volume in the
same system, or in a second, independent P2000 G3 MSA System controller enclosure. The second system
can be located at the same site as the first system, or at a different site. See Connecting two storage
systems to replicate volumes on page 41 for host connection information concerning Remote Snap. Your
product’s installation instructions and cabling configuration guide provide additional information.
Replication setup and verification
After storage systems and hosts are cabled for replication, you can use SMU’s Replication Setup Wizard to
prepare to use the Remote Snap feature. Optionally, you can use telnet to access the IP address of the
controller module and access the Remote Snap feature using the CLI.
NOTE: Refer to the following manuals for more information on replication setup:
• See P2000 G3 MSA System SMU Reference Guide for procedures to setup and manage replications
• See P2000 G3 MSA System CLI Reference Guide for replication commands and syntax
• See P2000 G3 MSA System Event Descriptions Reference Guide for replication event reporting
Basic information for enabling the P2000 G3 MSA System controller enclosures for replication
supplements the troubleshooting procedures that follow:
• Familiarize yourself with Remote Snap by reviewing the “Getting started” and “Using Remote Snap to
replicate volumes” chapters in the SMU guide.
• Use Wizards > Replication Setup Wizard to prepare to replicate an existing volume to another vdisk in
the primary system or a secondary system.
Follow the wizard to select the primary volume, replication mode, and secondary volume, and to
confirm your replication settings. The wizard verifies the communication links between the primary and
secondary systems. Once setup is successfully completed, you can initiate replication from SMU.
• For descriptions of replication-related events, see the Event Descriptions Reference Guide.
Diagnostic steps for replication setup
Can you successfully use the Remote Snap feature?
Answer Possible reasons Actions
Yes System functioning properly. No action required.
No Remote Snap is not licensed on
each controller enclosure used
for replication.
Verify that the optional software feature is licensed on each
storage system used for replication.
• In SMU’s Configuration View panel, right-click the system,
and select View > Overview. Within the System Overview
table, select the Licensed Features component to display
the status of licensed features.
• If the Replication property is not enabled, obtain and
install a valid license for Remote Snap.
NOTE: Remote Snap is not supported by P2000 G3
SAS MSA System controllers.