Configuring Data Migrator

Data Migrator Administration Guide for Hitachi NAS Platform

Part Number

To use Data Migrator, you must define the following:

  • Data migration paths from primary to secondary storage.

    Data migration paths define the relationship between primary and secondary storage. The primary and secondary storage defined in the data migration paths must be assigned to the same EVS.

  • Data migration rules, which define the properties of files that will be migrated.
  • Data migration policies, which define rules to apply to specific data migration paths based on the available free space on the source file system or dynamic file volume.

    Free space is calculated as follows:

    • For a file system, free space is the amount of unused space allocated to the file system (before it automatically expands, if automatic expansion is enabled for the file system).
    • For a virtual volume, if a quota has been defined, free space is the amount of unused space before reaching the usage limit of the quota for that virtual volume. If a quota has not been defined for the virtual volume, free space is the same as the free space for the file system.
  • Schedules, which define when data migration policies are run and files are migrated.