HP 3PAR StoreServ 7400 2-node HP 3PAR Command Line Interface Administrator& - Page 97
Removing a Virtual Copy, Creating a Group of Virtual Copies, Physical Copies
View all HP 3PAR StoreServ 7400 2-node manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 97 highlights
Removing a Virtual Copy To remove a virtual copy, issue the removevv command, where is the snapshot you are removing. See the HP 3PAR Command Line Interface Reference for detailed information about the removevv command. Creating a Group of Virtual Copies The HP 3PAR CLI also allows for the creation of consistent group snapshots of a list of virtual volumes. A maximum group size of 100 virtual volumes can be specified when making a group of virtual copies. To create group snapshots, issue the creategroupsv command, where is the name of the virtual volume being copied. NOTE: If you wish to copy multiple volumes, the argument can be repeated multiple times on the command line for a single instance of the creategroupsv command. For a complete list of options available for the creategroupsv command, see the HP 3PAR Command Line Interface Reference and the HP 3PAR CLI Help. Physical Copies A physical copy is a full copy of a volume. The data in a physical copy is static; it is not updated with subsequent changes to the parent volume. The parent volume is the original volume that is copied to the destination volume. The parent volume can be a base volume, volume set, virtual copy, or physical copy. Creating physical copies does not require a separate license. Physical copies can be online physical copies or offline physical copies. For online physical copies, the destination volume is automatically created and can be exported immediately. Offline physical copies require a destination volume that must have a user space size at least as large as the user space of the base volume being copied, and cannot be exported. The maximum number of physical copies that can be created on a system is determined by the system configuration. For the maximum number of physical copies that can be created with your specific system configuration, see the SPOCK website: http://www.hp.com/storage/spock A physical copy can only be made from a volume with enough free space to accommodate writes to that volume during the physical copy operation. In addition, the destination volume must meet the following conditions: • It must have snapshot space associated with it. • It must have at least as much user space as the volume being copied. In addition to creating offline or online physical copies, you can also use the HP 3PAR CLI to resynchronize or promote offline physical copies. Online physical copies cannot be resynchronized or promoted. For additional information about the rules governing physical copies, see the HP 3PAR StoreServ Storage Concepts Guide. NOTE: If the parent and destination volume are both TPVVs, only the space actually used is copied. The createvvcopy command can be issued multiple times. However, the system allows only two physical copy tasks to run concurrently. Any additional physical copy tasks are queued, pending the completion of the active physical copy tasks. Physical Copies 97