Metrocluster with 3PAR Remote Copy for Linux Version B.01.00.10 Release Notes

Support for Remote Copy volume group monitor
In a Metrocluster 3PAR environment, Remote Copy volume group monitor provides the capability
to monitor the status of the Remote Copy volume group used in a package. It sends notifications
to the user via email, syslog, OPC, or console. The notifications are sent when:
• There is a change in a Remote Copy volume group status.
• The monitor cannot determine the Remote Copy volume group status.
For more information on Remote Copy volume group monitor in a Metrocluster Solution, see Building
Disaster Recovery Serviceguard Solutions Using Metrocluster with 3PAR Remote Copy for Linux
B.01.00.10 available at http://www.hp.com/go/linux-serviceguard-docs.
Support for VMWare virtual machines as Metrocluster nodes
Metrocluster for Linux includes support for configuring VMWare virtual machines as Metrocluster
nodes. All Serviceguard related restrictions and guidelines for configuring VMWare virtual machines
as Serviceguard nodes are also applicable to Metrocluster configurations.
In Metrocluster configurations, only Raw Device Mapping (RDM) is supported. Each VM guest that
is part of Metrocluster must be from different ESX host. No two or more guests should belong to
an ESX host.
Features supported in B.01.00.00 version
Metrocluster with 3PAR Remote Copy for Linux enables automatic failover of Serviceguard packages
between primary and recovery sites.
• “Support for Synchronous Replication mode” (page 5)
• “ Support for Asynchronous Periodic Mode ” (page 5)
• “Support for Fully and Thinly Provisioned Virtual Volumes” (page 6)
• “Support for Remote Copy configurations” (page 6)
• “Support for 3PAR Virtual Domains” (page 6)
• “Supported volume managers with Metrocluster with 3PAR Remote Copy for Linux” (page 7)
• “Support for Continentalclusters” (page 7)
• “Support for Serviceguard A.11.20.xx” (page 7)
• “Support for failover polices site_preferred and site_preferred_manual” (page 7)
• “Support for persistent reservations” (page 7)
Support for 3PAR features
Support for Synchronous Replication mode
Metrocluster with 3PAR Remote Copy for Linux version B.01.00.10 includes support for synchronous
replication mode. HP 3PAR Remote Copy software offers synchronous and asynchronous periodic
data transfer mode between the storage systems. Synchronous data transfers offer the highest levels
of data availability. With synchronous operations, both the primary and secondary copies are
identical and concurrent at all times. Synchronous replication is appropriate when data currency
is critical while recovering a business application.
Support for Asynchronous Periodic Mode
Configure the 3PAR Remote Copy volume group in asynchronous periodic mode when you want
no impact on the response time of application.
In the asynchronous periodic mode, host writes are performed only on the primary storage array
and the host write is acknowledged as soon as the data is written into cache on the primary storage
Features supported in B.01.00.00 version 5