Preparing to copy a volume

Verifying the size of each volume

Verifying the volume size

To see whether the data in one volume can be copied or replicated to another volume, you need to compare the file system size of the two volumes. To compare the file system size of the volumes, complete the following steps.

Step	Action
1	Enter the following command on the source filer: vol status -b volume_name volume_name is the name of the source volume. Result The command displays the block size of the volume (in bytes), the RAID volume size, and the WAFL file system size. If no volume name is given, information for all volumes is displayed.
2	On the destination filer, repeat Step 1, replacing volume_name with the name of the destination volume.
3	Compare the file system (FS) numbers. If the file system size of the destination is the same as or larger than the file system size of the source, you can use the `vol copy` command (or SnapMirror) to transfer data from the source to the destination.

Step

Action

Enter the following command on the source filer:

vol status -b volume_name

volume_name is the name of the source volume.

Result

The command displays the block size of the volume (in bytes), the RAID volume size, and the WAFL file system size. If no volume name is given, information for all volumes is displayed.

On the destination filer, repeat Step 1, replacing volume_name with the name of the destination volume.

Compare the file system (FS) numbers. If the file system size of the destination is the same as or larger than the file system size of the source, you can use the vol copy command (or SnapMirror) to transfer data from the source to the destination.

Example

vol status -b

Volume    Block Size (bytes)   Vol Size (blocks)   FS Size (blocks)

------    ------------------   -----------------   ---------------

sourcevol 4096                 4346752             4346752

destvol   4096                 4346752             4346752