ONTAP 9.12.1 commands

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  • ONTAP 9.12.1 commands(CA08871-263en.pdf)
  • volume rebalance start

    Start a volume capacity rebalancing operation on a FlexGroup volume

    Availability: This command is available to cluster and Vserver administrators at the admin privilege level.

    Description

    The volume rebalance start command starts a volume capacity rebalancing operation on a FlexGroup volume in the specified Vserver. Only one volume capacity rebalancing operation is supported per FlexGroup volume at a time. Running capacity rebalancing operations on multiple FlexGroup volumes at the same time is supported.

    The volume rebalance start command is only supported on FlexGroup volumes.

    Parameters

    -vserver <vserver name> - Vserver Name

    Identifies the Vserver that contains the FlexGroup volume whose capacity will be rebalanced.

    -volume <volume name> - Volume Name

    Identifies the FlexGroup volume whose capacity will be rebalanced.

    [-max-runtime <time_interval>] - Maximum Runtime

    Specifies the maximum time a capacity rebalancing operation will run for. The default value is 6 hours.

    [-max-threshold <percent>] - Maximum Imbalance Threshold per Constituent

    Specifies the maximum imbalance percentage for constituents. When a constituent’s imbalance percentage is larger than this value, files will be moved from the constituent. The default value is 20%.

    [-min-threshold <percent>] - Minimum Imbalance Threshold per Constituent

    Specifies the minimum imbalance percentage for constituents. When a constituent’s imbalance percentage is smaller than this value, files will not be moved from the constituent. The default value is 5%.

    [-max-file-moves <integer>] - Maximum Concurrent File Moves per Constituent

    Specifies the maximum number of concurrent file moves in a volume capacity rebalancing operation on a constituent of the FlexGroup volume. The default value is 25.

    [-min-file-size {<integer>[KB|MB|GB|TB|PB]}] - Minimum File Size

    Specifies the minimum file size to consider for a volume capacity rebalancing operation. The value must be a multiple of 4KB. The default value is 100MB.

    [-exclude-snapshots {true|false}] - Exclude Files Stuck in Snapshot Copies

    Specifies whether files stuck in snapshots should be excluded in a volume capacity rebalancing operation. The default value is true.

    Examples

    In this example, a volume capacity rebalancing operation is started for the FlexGroup volume "fg1" in vserver "vs0" with the maximum run time being 72000 seconds or 20 hours.

    cluster::volume rebalance rebalance*> start -vserver vs0 -volume fg1 -max-runtime 72000
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