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NetWorker 19.7 Snapshot Management Integration Guide

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Application Information variables for VNX Block arrays

The following table lists Application Information variables that NetWorker Snapshot Management (NSM) can use for VNX Block storage arrays.

Table 1. Application Information variables for VNX Block arrays
VNX Block variable Definition
CLAR_ON_DELETE Specifies the disposition of the clone LUN when NSM deletes a snapshot:
  • RETAIN_RESOURCE—NSM resynchronizes the clone with its source. This makes the clone LUN available for future snapshot requests.
  • RELEASE_RESOURCE—NSM does not resynchronize the clone with its source. This makes the clone LUN available for other client operations, if you manually remove it from the clone group of the source LUN. This clone LUN will not be available for future snapshot requests unless you manually add it again to the same clone group.
  • START_STATE—NSM resynchronizes the clone with its source LUN only if it was in a synchronized state when it was fractured. 
In this case, its disposition becomes one of the following:
    • – RETAIN_RESOURCE workflow
    • – RELEASE_RESOURCE workflow
Conventional backups to disk or tape that do not use this snapshot capability are still possible with the NetWorker software, even after the upgrade to NSM with the NetWorker client 8.1 installation. The group configuration determines whether a backup uses NSM features.
EMCCLAR_SNAP_SUBTYPE Mandatory. The default value is COW for copy-on-write backup and recovery workflows. The values you can use are as follows:
  • MIRROR—Use for clone fracture, clone backup, and clone recovery workflows.
  • VNX-SNAP—Use for VNX snap backup and VNX snap recovery workflows.
  • VNXe-SNAP—Use for VNXe3200 backup and VNXe3200 snap recovery workflows.
  • COW—Use for copy-on-write backup and recovery workflows.
FRAME_IP Specifies the hostname or IP address of the VNX port to use.

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