xxxvi
Verifying the Size of Each Volume. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-4
Verifying the Contents of the Destination Volume . . . . . . . . . . . . . . . . . . . . 15-4
Verifying the Relationship Between Filers. . . . . . . . . . . . . . . . . . . . . . . . . . . 15-4
Verifying Localhost as a Trusted Host. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-4
Recommendation for Copying a Volume. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-4
Details About Copying One Volume to Another . . . . . . . . . . . . . . . . . . . . . . . . . . 15-5
Command Syntax for Copying One Volume to Another . . . . . . . . . . . . . . . . 15-5
Specifying the Snapshots to Copy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-5
Specifying the Volumes Involved in the Copy . . . . . . . . . . . . . . . . . . . . 15-5
Where to Enter the vol copy start Command . . . . . . . . . . . . . . . . . . . . . . . . 15-6
Examples of the vol copy start Command. . . . . . . . . . . . . . . . . . . . . . . . . . . 15-6
Results of the vol copy start Command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-6
Volume Copy Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-6
When to Use the Volume Copy Operation Number. . . . . . . . . . . . . . . . 15-7
Screen Messages From the vol copy Command . . . . . . . . . . . . . . . . . . 15-7
Maximum Number of Simultaneous Volume Copy Operations. . . . . . . . . . . 15-7
Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-7
Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-7
Possible Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-8
Management of a Volume Copy Operation When it Is in Progress . . . . . . . . . . . 15-8
Checking the Status of a Volume Copy Operation. . . . . . . . . . . . . . . . . . . . . 15-8
Where to Enter the vol copy status Command . . . . . . . . . . . . . . . . . . . 15-9
Example of a vol copy status Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-9
Aborting a Volume Copy Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-10
Controlling the Speed of a Volume Copy Operation . . . . . . . . . . . . . . . . . . 15-10
Displaying the Default Speed for Copying a Volume. . . . . . . . . . . . . . . . . . 15-11
Example of Controlling the Speed of Copying a Volume. . . . . . . . . . . . . . . 15-11
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About This Chapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1
Overview of SnapMirror. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1
Purposes of SnapMirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1
Why You Want to Replicate a Volume. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1
How SnapMirror Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-2
Command and Configuration File for Controlling SnapMirror . . . . . . . . . . . . 16-2
How the Filer Creates a Baseline Version of the Mirror . . . . . . . . . . . . . . . . 16-2
How the Filer Updates the Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-3
Number of Volume Copy Operations SnapMirror Generates . . . . . . . . . . . . 16-3
What Happens After You Replicate a Volume. . . . . . . . . . . . . . . . . . . . . . . . 16-3
Differences Between a Mirror and a Regular Volume. . . . . . . . . . . . . . . . . . 16-3
Snapshots Created During Data Replication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-4
Naming Conventions for Snapshots Used by SnapMirror. . . . . . . . . . . . . . . 16-4