Metro Mirror functions

This topic provides information to help you use Metro Mirror functions using the DS CLI commands. Metro Mirror is a function for application data recovery, but also for failover to remote sites for disaster recovery, remote migration of data, and off-site backups.

• Displaying the status of established paths
  Complete this task to display a list of established remote mirror and copy paths that are established between LSSs.
• Displaying the WWNN of a storage unit
  Complete this task to display a list of worldwide node names (WWNNs) of the storage unit in a storage complex.
• Creating remote mirror and copy paths
  Complete this task when you create paths because they are required when creating source and target remote mirror and copy volume pair relationships.
• Correcting a path-related configuration error
  Complete this task to correct a path-related configuration error with DS CLI commands.
• Removing paths
  Complete this task to remove paths between the LSSs on the source storage unit and the target LSSs on the target storage units.
• Creating a Metro Mirror relationship
  Complete this task to create a Metro Mirror relationship between a source volume and target volume.
• Creating a Metro Mirror consistency group
  Complete this task to create a Metro Mirror consistency group.
• Resuming a Metro Mirror relationship
  Complete this task to resume a Metro Mirror volume pair that has been suspended (paused).
• Pausing a Metro Mirror relationship
  Complete this task to pause (suspend) a Metro Mirror relationship.
• Creating a Global Copy relationship
  Complete this task to create a Global Copy relationship between a source volume and target volume.
• Deleting a Metro Mirror relationship
  Complete this task to delete the Metro Mirror relationship between a source and target volume.
• Modifying logical subsystem timeout values
  This section describes the list of logical subsystem (LSS) timeout values that you can modify using DS CLI commands.
• Defining a path that has the consistency option enabled
  Complete this task to define a path that has enabled the consistency group option for the volume pairs that are associated with the LSS volume pair.
• Monitoring Remote Mirror and Copy paths
  Complete this task to display a list of existing remote mirror and copy path definitions using the DS CLI.
• Performing a failover recovery operation
  Complete this task to perform a failover recovery operation using DS CLI Metro Mirror. In a disaster recovery process, the failover procedure must be followed by a failback procedure after a path from the target site to the source site is created.
• Performing a failback recovery operation
  Complete this task to perform Global Copy failback processing for the A volumes. This process resynchronizes the volumes at Site A with volumes at Site B and restarts mirroring from site A (local site) to site B (remote site).
• Viewing information about Metro Mirror relationships
  Complete this task to view information about Metro Mirror relationships using the DS CLI.
• Converting Global Copy volume pairs to synchronous
  Complete this task to convert Global Copy volume pairs to synchronous (Metro Mirror volume pairs).
• Determining which I/O ports are available for paths
  Complete this task to determine which I/O ports are available for paths between the source and target LSSs.
• Deleting a single volume Metro Mirror relationship
  Complete this task to delete the single volume Metro Mirror relationship whether it exists on the source or the target volume.
• Copy Services functions across a 2105 and 1750
  Copy Services functions that are performed using either the DS Storage Manager or DS CLI interact with both the DS8000 (Machine type 2107) DS6000 (Machine type 1750) and the IBM^® System Storage™ 2105 Enterprise Storage Servers (ESS) Models 800 and ESS 750.
• Creating a Metro Mirror volume pair between a 1750 and a 2105
  Complete this task to create a Metro Mirror volume pair using volumes from a 1750 and a 2105.