HP StorageWorks XP Cluster Extension Software Administrator Guide (T1656-96035, April 2010)

Rescanning multipath devices ................................................................................................... 106
Configuring the rescan script ............................................................................................. 106
Finding the user-friendly name of a multipath device ............................................................. 107
Configuring the pair/resync monitor .......................................................................................... 108
Updating the remote access hosts file .................................................................................. 108
Configuring the pair/resync monitor port ............................................................................ 108
Activating the pair/resync monitor ............................................................................................ 109
Timing considerations .............................................................................................................. 109
6 XP Cluster Extension and CLI ........................................................... 111
Configuring the CLI ................................................................................................................. 111
Creating the Continuous Access environment and configuring XP RAID Manager ...................... 111
Timing considerations ....................................................................................................... 111
Restrictions for customized XP Cluster Extension implementations ............................................. 112
Creating and configuring the user configuration file .............................................................. 112
CLI commands ....................................................................................................................... 113
clxrun ............................................................................................................................. 113
clxchkmon ....................................................................................................................... 114
Displaying resources .................................................................................................. 115
Removing resources .................................................................................................... 115
Stopping the pair/resync monitor ................................................................................ 115
7 XP Cluster Extension recovery procedures .......................................... 119
XP disk pair states ................................................................................................................... 119
Recovery sequence ................................................................................................................. 120
8 User configuration file and XP Cluster Extension objects ...................... 123
User configuration file location ................................................................................................. 123
File structure .................................................................................................................... 124
Specifying object values .................................................................................................... 124
COMMON objects ................................................................................................................. 126
APPLICATION objects ............................................................................................................. 128
APPLICATION objects ....................................................................................................... 128
Basic configuration example ..................................................................................................... 139
9 Advanced XP Cluster Extension configuration ..................................... 141
Implementing rolling disaster protection ..................................................................................... 141
Using XP RAID Manager with rolling disaster protection ........................................................ 141
Setting XP Cluster Extension objects to enable rolling disaster protection .................................. 141
Setting automatic recovery for rolling disaster protection ........................................................ 142
Using the pair/resync monitor with rolling disaster protection ................................................. 142
Restoring server operation for rolling disaster protection ........................................................ 142
Monitoring and resynchronizing device groups ........................................................................... 143
Enabling write access regardless of disk pair state ...................................................................... 144
Executing programs before and after an XP Cluster Extension takeover .......................................... 145
Arguments ....................................................................................................................... 145
Pre-executable return codes ............................................................................................... 146
Post-executable return codes ............................................................................................... 147
10 Troubleshooting ........................................................................... 149
XP Cluster Extension log facility ................................................................................................ 149
Start errors ............................................................................................................................. 150
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