Building Disaster Recovery Serviceguard Solutions Using Metrocluster with 3PAR Remote Copy for Linux B.01.00.10, December 2013

Contents
1 Introduction...............................................................................................5
Overview of HP 3PAR concepts..................................................................................................5
Remote Copy pairs .............................................................................................................5
Remote Copy volume groups ................................................................................................5
Remote Copy and thin provisioning........................................................................................5
Remote Copy volume group modes........................................................................................5
Remote Copy target definitions .............................................................................................6
Virtual domains...................................................................................................................6
HP 3PAR user privileges........................................................................................................6
Overview of solution for Metrocluster with 3PAR Remote Copy for Linux ..........................................6
Infrastructure requirements.....................................................................................................6
Overview of a Metrocluster configuration................................................................................8
Overview of Metrocluster 3PAR Remote Copy volume group monitor...........................................9
2 Configuring an application in a Metrocluster environment .............................10
Installing the necessary software...............................................................................................10
Creating the cluster.................................................................................................................10
Site Aware Failover Configuration.............................................................................................10
Setting up the replication using 3PAR Remote Copy.....................................................................11
Connecting the arrays to the hosts in the cluster.....................................................................11
Set up HP 3PAR InForm OS CLI for Metrocluster environment....................................................11
Create Remote Copy volume group......................................................................................11
Using HP 3PAR Mmanagement console GUI.....................................................................12
Using HP 3PAR CLI commands........................................................................................12
Creating a 3PAR storage system user to access the remote copy volume group...........................14
Setting up password files for cluster nodes to connect to HP 3PAR storage systems......................15
Configuring LVM volume group ...............................................................................................15
Creating LVM volume groups ..............................................................................................15
Configuring Metrocluster Packages ...........................................................................................16
Configuring a Metrocluster package using Serviceguard Manager...........................................20
3 Metrocluster Features................................................................................25
Cluster verification..................................................................................................................25
4 Understanding failover/failback scenarios...................................................28
Failover/failback scenarios in a Metrocluster package.................................................................28
5 Administering a Metrocluster with 3PAR Remote Copy for Linux......................31
Administering a cluster that uses Metrocluster 3PAR Remote Copy.................................................31
Viewing the Remote Copy volume group details.....................................................................31
Normal maintenance..........................................................................................................31
Remote Copy link failure and resume modes..........................................................................31
Restoring replication after a failover.....................................................................................32
Administering Metrocluster with Serviceguard Manager...............................................................32
Rolling upgrade......................................................................................................................32
Limitations of the rolling upgrade for Metrocluster...................................................................33
6 Troubleshooting........................................................................................34
Troubleshooting Metrocluster....................................................................................................34
Metrocluster log.................................................................................................................34
HP 3PAR storage system log................................................................................................34
Understanding Metrocluster package log messages................................................................34
Managing CLI connections to 3PAR array.............................................................................38
Troubleshooting connectivity issues to HP 3PAR storage system.................................................38
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