HP XP RAID Manager Software - Manual (Page 3)

Contents
1 Overview of Business Copy/Snapshot...........................................................7
Snapshot software....................................................................................................................7
How Business Copy/Snapshot works...........................................................................................7
Volume pairs: P-VOLs and V-VOLs..........................................................................................7
Data pools..........................................................................................................................8
Components............................................................................................................................9
Licenses and capacity...............................................................................................................9
Consistency groups...................................................................................................................9
Interfaces for performing Business Copy/Snapshot operations........................................................9
Remote Web Console.........................................................................................................10
RAID Manager .................................................................................................................10
Pair status..............................................................................................................................10
2 Business Copy/Snapshot planning and design.............................................11
Consistency group system requirements......................................................................................11
Data pool requirements and restrictions.....................................................................................13
Planning pair volumes.............................................................................................................13
Planning V-VOLs and data pools..........................................................................................13
Sizing the data pool workflow........................................................................................14
Calculating the number of Snapshot pairs..................................................................................14
Calculating SS pairs when creating external volumes or V-VOLs...............................................15
Calculating maximum SS pairs based on differential tables workflow........................................15
Calculating maximum SS pairs based on shared memory workflow..........................................16
Calculate the capacity of the pool management block........................................................18
Capacity of pool association information..........................................................................18
Calculating maximum pairs based on pair tables...................................................................19
Determining maximum pairs allowed on your system..............................................................19
Planning for splitting pairs in consistency groups.........................................................................19
Requirements and restrictions for the At-Time Split operation....................................................19
Pair inclusion in At-Time Split operations workflow..................................................................20
Consistency maintenance workflow when sharing SS P-VOLs with Cnt Ac-J or Cnt Ac-S volumes....20
Snapshot secondary volume consistency maintenance........................................................22
External volumes.....................................................................................................................22
External-volume failures......................................................................................................22
3 Business Copy/Snapshot installation and configuration.................................23
Installing and removing Business Copy/Snapshot........................................................................23
Configuration workflow...........................................................................................................23
Creating data pools................................................................................................................23
Creating V-VOLs.....................................................................................................................24
Setting up the RAID Manager command device..........................................................................26
4 Sharing Business Copy/Snapshot volumes...................................................27
Interoperability with other software applications and functions......................................................27
Data Retention and access attributes.........................................................................................28
Thin Provisioning....................................................................................................................29
Resource Partition...................................................................................................................29
Business Copy/Snapshot.........................................................................................................29
Restrictions when sharing P-VOLs..........................................................................................31
Continuous Access Synchronous and Continuous Access Journal...................................................31
Cnt Ac-S and Cnt Ac-J volume backup in 3DC multi-target configuration....................................33
Auto LUN V2.........................................................................................................................33
Fast Snap..............................................................................................................................34
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