Building Disaster Recovery Serviceguard Solutions Using Metrocluster with 3PAR Remote Copy for Linux B.01.00.00, July 2013

NOTE: When a TPVV is configured as a primary volume in a Remote Copy volume group, no

data should be written on the secondary volume before adding it to the Remote Copy volume

group, or it must match the primary volume. This enables the primary and secondary volumes to

match during initial synchronization.

The Remote Copy volume group can be created either using HP 3PAR Management Console GUI

or using HP 3PAR CLI . For better usability, configure Remote Copy volume group using HP 3PAR

Management Console GUI.

Using HP 3PAR Mmanagement console GUI

You can use the HP 3PAR Management Console graphical user interface to configure CPG, virtual

volumes, Remote Copy volume group. You can also export the created volumes to the respective

nodes in the cluster using HP 3PAR Management Console.

For more detailed information on setting up HP 3PAR Management Console to configure, manage,

and monitor your HP 3PAR storage system, see the HP 3PAR Management Console Online Help.

Using HP 3PAR CLI commands

To create the Remote Copy volume groups on the primary and backup storage systems:

1. Log on to a 3PAR storage system from the host. You must use a user with super or edit privileges

who has access to all the domains.

# cli

When prompted, enter the storage system IP or Name, and then enter the user credentials for

the particular storage system.

2. Create a CPG on both primary and recovery 3PAR storage systems. Issue the following

command:

cli% createcpg -domain <domain_name> MC_CPG_RAID5

where:

• MC_CPG_RAID5 is the name of the CPG.

• <domain_name> is the name of the domain to which the newly created CPG will belong.

If you are not using Domains, do not specify the option -domain otherwise, specify the

name of an existing domain in your system.

To list all the existing domains in the system, issue the following 3PAR command:

cli% showdomain

NOTE: If you want to create a new domain, run the createdomain <domain_name>

command before creating the CPG.

3. Create a virtual volume for both the primary and recovery storage systems, that belong to the

CPG created in step 2. Base volumes are not supported for Remote Copy. Create either fully

provisioned virtual volumes or TPVVs on both the primary and recovery storage systems.

• To create a fully provisioned virtual volume:

cli% createvv -snp_cpg <snp_cpg> MC_CPG_RAID5 <volume_name>

<volume_size>

• To create a lightly provisioned virtual volume:

cli% createvv -tpvv –snp_cpg <snp_cpg> –usr_aw <percent> usr_al

10 Configuring an application in a Metrocluster environment