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Backing up qtree data

You should run a complete SnapVault transfer, by using the snapvault start command, for the qtrees to be backed up.


  1. At the console for the secondary system, enter the following command:snapvault start -S prim_system:prim_qtree_path sec_host:sec_qtree_path

    The -S option specifies the primary system and path. This option must be set the first time the command is run for each primary system qtree you want to copy. It is optional when restarting an initial transfer for a previously configured qtree.

    prim_system:prim_qtree_path specifies the qtree on the primary system to be backed up.

    sec_host is the name of the destination (secondary system) to which the data from the primary system qtree is transferred. If no secondary system is specified, the local host’s name is used.

    sec_qtree_path is the path to and includes the name of the qtree on the secondary system.
    Note: The qtree specified for sec_qtree_name must not exist on the secondary system before you run the snapvault start command.

    For information about snapvault start command options, see the na_snapvault(1) man page.

Backing up qtree data

systemB> snapvault start -S systemA:/vol/vol2/qtree3 /vol/vol1/qtree3

SnapVault creates a Snapshot copy of qtree3 in vol2 of the primary system (systemA), copies the data in it to the secondary system (systemB) at vol/vol1/qtree3, and configures the qtree for future updates.
Note: The time required for this baseline transfer is limited by the total amount of primary system data to be backed up and by the inode count. SnapVault can carry out initial backup at an approximate rate of 7 million inodes per hour (110,000 inodes per minute). In the first phase of a large transfer, SnapVault creates inodes, and it might appear that no activity is taking place.