Dot Hill Systems AssuredSAN 4544, Руководство по установке

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64 Troubleshooting
Isolating AssuredRemote replication faults
Cabling for replication
AssuredRemote replication is a licensed feature for disaster-recovery. This feature performs asynchronous
(batch) replication of block-level data from a volume on a local storage system to a volume that can be on
the same system, or a second, independent system. 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 40
for host connection information concerning AssuredRemote.
Replication setup and verification
After storage systems and hosts are cabled for replication, you can use RAIDar‘s Replication Setup Wizard
to prepare to use the AssuredRemote feature. Alternatively, you can use telnet to access the IP address of
the controller module and access the optional AssuredRemote feature using the CLI.
NOTE: Refer to the following manuals for more information about replication setup:
• See AssuredSAN 4004 Series RAIDar User Guide for procedures to setup and manage replications.
• See AssuredSAN 4004 Series CLI Reference Guide for replication commands and syntax.
• See AssuredSAN Event Descriptions Reference Guide for replication event reporting.
Basic information for enabling the Ultra48 Series controller enclosures for replication supplements the
troubleshooting procedures that follow.
•
Familiarize yourself with AssuredRemote by reviewing the “Getting started” and “Using AssuredRemote
to replicate volumes” chapters in the RAIDar User Guide.
• Use RAIDar‘s Wizards > Replication Setup Wizard to prepare to replicate an existing volume to another
vdisk in the primary system or 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 RAIDar or
the CLI.
• For descriptions and replication-related events, see the Event Descriptions guide.
Diagnostic steps for replication setup
Can you successfully use the AssuredRemote feature?
Answer Possible reasons Actions
Yes System functioning properly. No action required.
No AssuredRemote is not licensed on
each controller enclosure used for
replication.
Verify licensing of the optional feature per system:
• In the Configuration View panel in RAIDar, right-click on
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 feature is not enabled, obtain and install a
valid license for AssuredRemote.
NOTE: AssuredRemote is not supported by Ultra48
Series SAS controller enclosures.
Table 18 Diagnostics for replication setup: Using AssuredRemote feature