HP XP7 Storage - Manual (Page 3)

Contents
1 Overview of Fast Snap................................................................................7
Workflow for Fast Snap.............................................................................................................7
Workflow of the storing of snapshot data................................................................................7
Components of Fast Snap..........................................................................................................8
Components of Fast Snap pairs.............................................................................................9
Consistency and snapshot groups..........................................................................................9
Consistency groups and splitting pairs..................................................................................10
Fast Snap.........................................................................................................................10
Thin Provisioning................................................................................................................10
Thin Provisioning licensed capacity..................................................................................10
RAID Manager..................................................................................................................10
How Fast Snap works..............................................................................................................11
Fast Snap pools and pool volumes.......................................................................................11
Virtual volumes and Fast Snap pairs.....................................................................................12
Workflow for creating groups and storing snapshot data using the RAID Manager.....................12
How snapshot data is stored...............................................................................................14
Workflow for the CAW method.......................................................................................15
Workflow for the COW method......................................................................................15
Fast Snap pair restoration...................................................................................................15
Fast Snap pair status...............................................................................................................15
The copy threshold option and host server I/O performance........................................................17
Sharing FS volumes with other XP7 storage system software applications........................................18
Sharing volumes and Data Retention access attributes.............................................................19
Access attributes and supported FS tasks..........................................................................19
Sharing Fast Snap volumes with Auto LUN............................................................................21
Sharing Fast Snap volumes with Business Copy......................................................................21
Sharing Fast Snap volumes with Continuous Access Synchronous and Continuous Access
Journal.............................................................................................................................23
Volume backup in a 3DC multi-target configuration workflow..............................................25
Capacity and using Fast Snap, Thin Provisioning, and Thin Provisioning Z in a single storage
system..............................................................................................................................26
Resource Partition...............................................................................................................26
Acronyms and abbreviations for XP7 storage system software applications used in this guide............26
2 Planning and design requirements..............................................................27
System requirements................................................................................................................27
Fast Snap task requirements................................................................................................27
Workflow for installing Fast Snap....................................................................................27
Downloading Fast Snap for Remote Web Console.............................................................27
Workflow for removing Fast Snap....................................................................................27
Fast Snap licensed capacity requirements..............................................................................27
Shared memory and the management area...........................................................................28
Shared memory requirements..........................................................................................28
Changing shared memory..............................................................................................28
Fast Snap volume requirements............................................................................................29
Fast Snap data pool requirements........................................................................................30
Consistency group requirements...........................................................................................31
Snapshot group requirements..............................................................................................31
Requirements for Fast Snap tasks..............................................................................................32
Calculating the number of Fast Snap pairs based on pair tables..............................................32
Workflow for calculating Fast Snap pairs based on the snapshot estimated manageable
capacity...........................................................................................................................32
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