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

ManualsBrandsHP ManualsSoftwareHP Serviceguard Metrocluster with EMC SRDF

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................................................................................7

2 Configuring an application in a Metrocluster environment ...............................8

Installing the necessary software.................................................................................................8

Creating the cluster...................................................................................................................8

Site Aware Failover Configuration...............................................................................................8

Setting up the replication using 3PAR Remote Copy.......................................................................9

Connecting the arrays to the hosts in the cluster.......................................................................9

Set up HP 3PAR InForm OS CLI for Metrocluster environment......................................................9

Create Remote Copy volume group........................................................................................9

Using HP 3PAR Mmanagement console GUI.....................................................................10

Using HP 3PAR CLI commands........................................................................................10

Creating a 3PAR storage system user to access the remote copy volume group...........................12

Setting up password files for cluster nodes to connect to HP 3PAR storage systems......................13

Configuring LVM volume group ...............................................................................................13

Creating LVM volume groups ..............................................................................................13

Configuring Metrocluster Packages ...........................................................................................14

Configuring a Metrocluster package using Serviceguard Manager...........................................17

3 Understanding failover/failback scenarios...................................................22

Failover/failback scenarios in a Metrocluster package.................................................................22

4 Administering a Metrocluster with 3PAR Remote Copy for Linux......................23

Administering a cluster that uses Metrocluster 3PAR Remote Copy.................................................23

Viewing the Remote Copy volume group details.....................................................................23

Normal maintenance..........................................................................................................23

Remote Copy link failure and resume modes..........................................................................23

Restoring replication after a failover.....................................................................................24

Administering Metrocluster with Serviceguard Manager...............................................................24

Rolling upgrade......................................................................................................................24

Limitations of the rolling upgrade for Metrocluster...................................................................25

5 Troubleshooting........................................................................................26

Troubleshooting Metrocluster....................................................................................................26

Metrocluster log.................................................................................................................26

HP 3PAR storage system log................................................................................................26

Understanding Metrocluster package log messages................................................................26

Managing CLI connections to 3PAR array.............................................................................30

Troubleshooting connectivity issues to HP 3PAR storage system.................................................30

A Checklist and worksheet for configuring Metrocluster with 3PAR Remote Copy

for Linux.....................................................................................................31

Disaster recovery checklist.......................................................................................................31

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