Designing Disaster Recovery Clusters using Metroclusters and Continentalclusters, Reprinted October 2011 (5900-1881)

Figure 55 Single Storage System Managing Multiple Independent Applications
Each domain provides users with various levels of accessibility domain objects. A domain is made
of Common Provisioning Groups (CPGs), hosts, and Remote Copy groups. Domains contain derived
domain objects such as Virtual Volumes (VVs), Logical Disks (LDs), and volume exports (VLUNs).
Because objects are domain-specific, domain users cannot accidentally or deliberately export VVs
to hosts or access VVs outside of their assigned domain. Remote Copy checks for HP 3PAR Virtual
Domains (domains) on the remote system to ensure the virtual volume is mirrored to the same
domain name as the local domain name.
For additional information about Domains, see the HP 3PAR InForm OS Concepts Guide.
HP 3PAR User Privileges
The following are the privilege levels available to HP 3PAR user.
1. Browse: Allows read-only accessibility.
2. Edit: Allows access to most system functions, such as creating and editing virtual volumes.
3. Super: Allows access to all system functions.
4. Service: Allows access to limited system functions to service the storage system; allows limited
access to user information and user group resources.
For more information on 3PAR Remote Copy Concepts, see the 3PAR InForm OS Concepts
Guide and 3PAR Remote Copy User Guide available at: http://www.hp.com/go/saw or
contact your HP representative.
Infrastructure Requirements
To configure any application in a Metrocluster with 3PAR Remote Copy environment, verify the
following infrastructure requirements:
• Ensure that the port number used by HP-UX Secure Shell or OPENSSH is open for
communication across two sites. Nodes in both the sites must be able to communicate over
the network.
• The Remote Copy links must be available between the 3PAR storage systems. The method to
set the Remote copy links depends on whether the configuration uses Remote Copy over IP
(RCIP) or Remote Copy over Fiber Channel (RCFC). There must be at least two alternately
routed Remote Copy links between the storage systems to maintain availability. In Metrocluster
with 3PAR Remote Copy, bidirectional configuration must be used. For more information on
314 Building Disaster Recovery Serviceguard Solutions Using Metrocluster with 3PAR Remote Copy