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Snapdrive for Unix

Estimating the storage space to split a volume clone

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The clone split estimation helps you to estimate the required storage space (in MB) to split a volume clone. Depending on the clone split estimation provided by SnapDrive for UNIX, you can determine the space availability to split a volume clone.

Steps

  1. Enter the following command to estimate the required storage space to split a volume clone.

    snapdrive clone split estimate [-lun] long_lun_name [longlun_name…​] | [{-dg | -vg | -fs | -hostvol | -lvol} _file_spec [file_spec…​]] | [-snapname long_snap_name] {-volclone|-lunclone}] [-v | -verbose] [-dump | -dumpall]

    This operation displays the following information:

    • Resource name

    • Container - Aggregate for a FlexClone

    • Required Space - space required to split the volume clone

    • Available space - space available on the container

    • Storage Status - indicates the space availability for a volume clone split

    • Owned Space - space occupied by the volume clone

    • Shared space - space occupied by the volume clone along with the parent

    The Owned Space and Shared Space is displayed when you use -verbose option.

The following example estimates the storage space to split a volume clone.

# snapdrive clone split estimate -fs /mnt/my_mnt1 -fs /mnt/my_mnt2
Resource     Container  Required Available  Storage
                        Space(MB) Space(MB) Status
/mnt/my_mnt1  f3050-220  400      61500    AVAILABLE
              -111:aggr0
/mnt/my_mnt2  f3050-220  3292     1129     NOT AVAILABLE
              -112:aggr1

For every file specification, SnapDrive for UNIX determines the required space that is available in the storage system to split a volume clone. Here, the /mnt/my_mnt1 file specification has the required space to split, and thus the storage status displays as AVAILABLE. Whereas, the /mnt/my_mnt2 file specification does not have the required space to split, and so the storage status displays as NOT AVAILABLE.

The following is an example of using the -verbose option. Alternatively, you can use -v option.

# snapdrive clone split estimate -fs /mnt/my_mnt1 -verbose
Resource    Container Owned    Shared   Required Available Storage
                      Space(MB)Space(MB)Space(MB)Space(MB) Status
/mnt/my_mnt1 f3050-220 32365  403      403     55875 AVAILABLE
             -111:aggr0