HP StoreVirtual 4000 Storage - Manual (Page 9)

How data protection levels work...................................................................................147
Network RAID-10 (2–Way Mirror).............................................................................147
Network RAID-10+1 (3-Way Mirror)..........................................................................147
Network RAID-10+2 (4-Way Mirror)..........................................................................148
Network RAID-5 (Single Parity).................................................................................148
Network RAID-6 (Dual Parity)...................................................................................149
Provisioning snapshots...........................................................................................................150
Snapshots versus backups.................................................................................................150
The effect of snapshots on cluster space..............................................................................150
Managing capacity using volume size and snapshots...........................................................151
Volume size and snapshots...........................................................................................151
Schedules to snapshot a volume and capacity.................................................................151
Deleting snapshots......................................................................................................151
Ongoing capacity management.............................................................................................151
Number of volumes and snapshots.....................................................................................151
Reviewing SAN capacity and usage...................................................................................151
Cluster use summary....................................................................................................152
Volume use summary...................................................................................................153
System Use summary...................................................................................................154
Measuring disk capacity and volume size...........................................................................155
Block systems and file systems.......................................................................................155
Storing file system data on a block system......................................................................155
Changing the volume size on the server..............................................................................156
Increasing the volume size in Microsoft Windows............................................................156
Increasing the volume size in other environments.............................................................156
Changing configuration characteristics to manage space......................................................157
12 Using volumes......................................................................................158
Volumes and server access....................................................................................................158
Prerequisites....................................................................................................................158
Planning volumes..................................................................................................................158
Characteristics of volumes......................................................................................................159
Creating a volume................................................................................................................160
Viewing the volume map.......................................................................................................161
Editing a volume..................................................................................................................161
To edit a volume..............................................................................................................162
Deleting a volume.................................................................................................................163
To delete the volume........................................................................................................164
13 Using snapshots....................................................................................165
Types of snapshots................................................................................................................165
Uses and best practices for snapshots.................................................................................165
Planning snapshots...............................................................................................................166
Prerequisites for application-managed snapshots..................................................................167
Creating snapshots...............................................................................................................168
Editing a snapshot...........................................................................................................169
Scheduling snapshots............................................................................................................169
Best practices for scheduling snapshots of volumes...............................................................169
Requirements for snapshot schedules..................................................................................170
Scheduling snapshots for volume sets..................................................................................170
Creating a schedule to snapshot a volume..........................................................................171
Editing scheduled snapshots.........................................................................................172
Pausing and resuming scheduled snapshots....................................................................172
Deleting schedules to snapshot a volume........................................................................173
Scripting snapshots......................................................................................................173
Mounting a snapshot............................................................................................................173
Contents 9