HP Serviceguard Metrocluster with EMC SRDF for Linux B.01.00.00

ManualsBrandsHP ManualsSoftwareHP Serviceguard for Linux ProLiant Cluster

Contents

1 Introduction...............................................................................................5

Overview of EMC SRDF............................................................................................................5

Terms and concepts.............................................................................................................5

Types of configuration..........................................................................................................6

Overview of solution for Metrocluster with EMC SRDF for Linux.......................................................7

Overview of a Metrocluster configuration................................................................................7

2 Configuring an application in a Metrocluster solution......................................9

Installing the necessary software.................................................................................................9

Building the Solutions Enabler CLI database.................................................................................9

Determining Symmetrix device names on each node......................................................................9

Setting up a 1 by 1 configuration.............................................................................................12

Creating Symmetrix device groups.......................................................................................12

Configuring a device group for SRDF/synchronous............................................................12

Configuring a device group for SRDF/asynchronous..........................................................13

Verifying the EMC Symmetrix configuration................................................................................14

Configuring Gatekeeper devices...............................................................................................15

Setting up M by N configurations.............................................................................................15

Additional examples of M by N configurations......................................................................16

Grouping the Symmetrix devices at each data center..............................................................17

Creating Symmetrix device groups.......................................................................................18

Configuring gatekeeper devices...........................................................................................19

Creating the consistency groups...........................................................................................20

Configuring SRDF/Asynchronous Multi-Session Consistency (MSC) data replication....................21

Building a composite group for SRDF/Asynchronous MSC..................................................21

Setting up the RDF daemon............................................................................................22

Starting and stopping the daemon..............................................................................22

Creating the cluster.................................................................................................................22

Site aware failover configuration..........................................................................................23

Configuring volume groups......................................................................................................24

Configuring LVM volume group............................................................................................24

Installing and configuring an application...................................................................................25

Configuring a Metrocluster package.....................................................................................25

Using command line......................................................................................................25

Some further points.................................................................................................................26

3 Metrocluster features.................................................................................29

Data replication storage failover preview...................................................................................29

Live Application Detach ..........................................................................................................29

Checking the Metrocluster package configuration.......................................................................30

4 Understanding Failover/Failback scenarios..................................................31

Package Failover using SRDF/Asynchronous...............................................................................33

5 Administering Metrocluster.........................................................................34

Adding a node to a Metrocluster..............................................................................................34

Maintaining a cluster..............................................................................................................34

Managing Business Continuity Volumes (BCV)............................................................................35

Protecting against rolling disasters........................................................................................35

Using the BCV in resynchronization......................................................................................35

R1/R2 swapping....................................................................................................................36

R1/R2 swapping using Metrocluster with EMC SRDF for Linux.................................................36

R1/R2 swapping using manual procedures...........................................................................36

Contents 3