HP P2000 G3 MSA Array Systems - Manual (Page 58)

58 Troubleshooting
• Yes – You now know that the expansion cable is good. Return cable to the original port. If the
expansion port status LED remains off, you have isolated the fault to the controller module’s
expansion port. Replace the controller module.
• No – Proceed to the next step.
5. Move the expansion cable back to the original port on the controller enclosure.
6. Move the expansion cable on the drive enclosure to a known good expansion port on the drive
enclosure .
Is the expansion port status LED on?
• Yes – You have isolated the problem to the drive enclosure’s port. Replace the expansion module.
• No – Proceed to the next step.
7. Replace the cable with a known good cable, ensuring the cable is attached to the original ports used
by the previous cable.
Is the host link status LED on?
• Yes – Replace the original cable. The fault has been isolated.
• No – It is likely that the controller module needs to be replaced.
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 40 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.