HP 3PAR Cluster Extension Software Administrator Guide (5697-2047, June 2012)

Contents
1 HP 3PAR Cluster Extension features...............................................................7
Integration into cluster software (Graphical user interface)..............................................................7
CLI for easy integration..............................................................................................................7
Disaster tolerance through geographical dispersion.......................................................................7
Automated redirection of mirrored disks.......................................................................................8
Metropolitan distance support....................................................................................................8
Fully Automatic Failover and Failback..........................................................................................9
No server reboot......................................................................................................................9
No single point of failure...........................................................................................................9
Synchronous mode support........................................................................................................9
Storage system configurations.....................................................................................................9
1-to-1 configuration.............................................................................................................10
N-to-1 and 1-to-N configurations..........................................................................................11
Processes and components.......................................................................................................11
HP 3PAR Remote Copy.......................................................................................................11
Synchronous replication.................................................................................................13
User configuration file.........................................................................................................13
Force Flag.........................................................................................................................13
Planning for HP 3PAR Cluster Extension.....................................................................................13
Cluster setup considerations................................................................................................13
Windows clustering.......................................................................................................13
Windows Server 2008/2008 R2...............................................................................13
Windows Server 2003..............................................................................................13
MNS or Node Majority quorum in Windows Clustering................................................14
Majority Node Set with File Share Witness..................................................................14
SLE HA cluster setup considerations......................................................................................15
Quorum.......................................................................................................................15
STONITH.....................................................................................................................15
Networking in an SLE HA cluster.....................................................................................15
Resource constraints......................................................................................................15
Resource operation attribute...........................................................................................16
HP 3PAR Cluster Extension resource dependency...............................................................16
Failover order...............................................................................................................16
Failback option.............................................................................................................16
Migration-threshold.......................................................................................................16
Disk monitoring.............................................................................................................17
RHCS cluster setup considerations........................................................................................17
Quorum.......................................................................................................................17
Fencing........................................................................................................................17
Qdisk configuration.......................................................................................................17
Failover domains...........................................................................................................17
Failback policy.............................................................................................................18
Recovery policy............................................................................................................18
Service hierarchical structure and resource dependency.....................................................18
Disk monitoring.............................................................................................................18
HP Serviceguard for Linux cluster setup considerations............................................................19
Quorum.......................................................................................................................19
Using Generic Resources to Monitor Volume Groups..........................................................19
Disk monitoring.............................................................................................................19
Cluster timeout considerations.........................................................................................19
failover packages..........................................................................................................20
Contents 3