HP 3PAR StoreServ 7400 4-node HP 3PAR Command Line Interface Administrator& - Page 171
Replacing a Read-Only Snapshot, Replacing a Read-Write Snapshot
View all HP 3PAR StoreServ 7400 4-node manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 171 highlights
NOTE: The updatevv command can also update sets of virtual volumes. For a complete list of options available for the updatevv command, see the HP 3PAR Command Line Interface Reference and the HP 3PAR CLI Help. Replacing a Read-Only Snapshot The following example shows how to replace a read-only snapshot volume with a new read-only snapshot volume. In this example: • test is a base volume (or a read-write snapshot). This volume holds the database. • test.ro is a read-only snapshot of test. This snapshot is a read-only copy of the database. • testuser1 is a user with updatevv rights for volume test.ro. See "Setting Administrative Rights" (page 170) for instructions on setting rights for replacing a read-only snapshots. When test.ro needs to be updated, testuser1 unmounts the filesystem on the host and then issues the following HP 3PAR CLI command to replace test.ro with a new read-only copy: cli% updatevv test.ro This command removes test.ro and replaces it with a new read-only snapshot of test. This new volume is also called test.ro. NOTE: In this example, test.ro can have a VLUN associated with it. The command will remember the VLUN, remove the old snapshot, create a new snapshot, and recreate the VLUN with the new snapshot. After the snapshot is replaced, testuser1 must remount the filesystem on the host. Replacing a Read-Write Snapshot The following example shows how to replace a read-write snapshot volume with a new read-write snapshot volume. In this example: • test is a base volume (or a read-write snapshot). This volume holds the database. • test.ro1 is a read-only snapshot of test. This snapshot is the reference copy of the database. • test.rw1 is a read-write snapshot of test.ro1. This is a snapshot of the reference copy of the database, created for development purposes. • testuser1 is a user with updatevv rights for volume test.rw1 See "Setting Administrative Rights" (page 170) for instructions on setting rights for replacing a read-write snapshots. • When test.rw1 needs to be restored, testuser1 unmounts the filesystem on the host and then issues the following HP 3PAR CLI command to replace test copy test.rw1 with a new copy: cli% updatevv test.rw1 This command removes test.rw1 and replaces it with a new snapshot of test.ro1. This new volume is also called test.rw1. Replacing Virtual Volume Snapshots 171