HP StorageWorks XP24000 Continuous Access Journal Software User and Reference Guide, v01 (T5278-96001, June 2007)

Primary storage system Secondary storage system
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Secondary storage system
Primary
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Figure 3 Connection Configura tion for Multiple Second a ry Storage Systems
Continuous Access Journal components include:
•
Storage system (see “Storage Systems” on page 20),
• Logical DKC (LDK C) (see “Logical Disk Controllers” on page 21)
• Main and
remote control units (primary storage systems and secondary storage systems) (see
“Main and Remote Contro l Units (Primary Storage Systems and Secondary Storage Systems)” on page 21),
• Journal group (see “Jou rnal Groups” on page 24),
• Data vol
umepair(see“Data Volume Pairs” on page 24) ,
•
Journalvolume(see“Journal Volumes” on page 25),
• Consis
tency g roup (see “Consistency Groups”onpage22),
•
Remote copy c onnections (see “Remote Copy Connections” on page 23),
• Initia
tor ports and RCU target ports (see “Initiator Ports and RCU Ta rget Ports” on page 24),
• Storage system Continuous Access Journal remote console softwar e (see
“Continuous Access Journal Software” on page 21) ,
•
Host f
ailover software (see “Host Failover Software” on page 26).
Storage Systems
Continuous Access Journal operations involve the storage systems at the primary and secondar y sites. The
primary storage system consists of the main control unit (primary storage system) and SVP. The secondary
storage system consists of the remote control unit (second ary storage system) and SVP.
To provide greater flexibilit y and to enable the storage system to be tailored to unique customer operating
requirements, operational parameters (or optional modes) are available for the storage system. At
installation, the storage system modes are set to their default values, so make sure to discuss these
settings with your HP service representative. The storage system modes c a n only be changed by your HP
service representative.
20
About
Continuous Access Journal Operations