Metrocluster with 3PAR Remote Copy for Linux Version B.01.00.00 Release Notes

Support for Device Mapper
Metrocluster for Linux supports configuring Device Mapper for disks used in Metrocluster packages.
All the Serviceguard related restrictions and guidelines for supporting DM-Multipath are also
applicable to Metrocluster configurations.
NOTE: Persistent Reservations cannot be used with Metrocluster Linux when Device Mapper (DM)
is enabled.
For more information on the restrictions, see HP Serviceguard for Linux Certification Matrix available
at http://www.hp.com/go/linux-serviceguard-docs.
Features not supported in B.01.00.00 version
3PAR Remote Copy features not supported in B.01.00.00 version
• Synchronous Long Distance configuration
• Unidirectional Remote Copy configuration
• 3PAR Remote Copy volume groups configured with fail_wrt_on_err policy
• No support for VMWare virtual machines as Metrocluster nodes
Serviceguard Cluster and Package configuration using Serviceguard
Manager
Starting with HP Serviceguard Manager B.03.31.10, available along with Serviceguard for Linux
A.11.20.10, the following Serviceguard Manager operations are supported in a Metrocluster with
3PAR Remote Copy for Linux environment:
• Configuring, monitoring, and administration of Metrocluster modular packages.
However, the following is the restriction with Serviceguard Manager in a Metrocluster with 3PAR
Remote Copy for Linux environment:
The Metrocluster package configuration requires a system administrator to configure data replication,
which is not supported by the Serviceguard Manager. This step needs to be performed by the
administrator outside of HP Serviceguard Manager.
For more information, see HP Serviceguard Manager B.03.31.10 online help system that is available
with the product.
NOTE: Before you configure any Metrocluster 3PAR Remote copy Package, password files must
be created for Metrocluster binary to query the HP 3PAR storage arrays. Run the command line
setupMC3PARpasswdfile utility to create the password file. For more information, see Building
Disaster Recovery Serviceguard Solutions Using Metrocluster with 3PAR Remote Copy for Linux
B.01.00.00 available at www.hp.com/go/linux-serviceguard-docs.
Compatibility information and installation requirements
Metrocluster with 3PAR Remote Copy for Linux must be installed on all nodes:
• that runs a Metrocluster 3PAR Remote Copy Package
• whose data are on an 3PAR storage systems, and
• whose data are replicated to a second 3PAR storage system using the 3PAR Remote Copy
software
Installation and configuration of Metrocluster with 3PAR Remote Copy for Linux must be done on
all the cluster nodes (except arbitrator and Quorum Server nodes).
Serviceguard Cluster and Package configuration using Serviceguard Manager 7