Creating Remote Mirror and Copy paths

Complete this task to create paths as they are required before you can create source and target remote mirror and copy volume pair relationships.

You must create logical paths between logical subsystems (LSSs) in a source storage unit and LSSs in a target storage unit. These are the paths through which data will be transferred so it essential that bandwidth for these operations be sufficient. In addition, you want to ensure that the ports used for remote mirror and copy operations are not the same ones that will be used for host I/O activity.

Perform the following steps to create remote mirror and copy paths:

  1. In the navigation, select Real-time Manager > Copy Services > Paths.
  2. Select Create from the Select Action drop-down box. Then, click Go.
  3. Select the source LSS and click Next.
  4. In the Select target LSS page, select the target LSS and click Next.
  5. In the Select source I/O ports page, select the source I/O ports for the selected storage unit and click Next.
    Note: You can configure I/O port properties on the Storage Units page only.
  6. In the Select target I/O ports page, select the target I/O ports for each source port and click Next.
  7. Optionally, in the Select path option page, select the consistency path option and click Next.
    1. If you do not select the consistency group option, the storage unit causes the volume where the error is detected to enter a suspended state, but updates to that volume are still allowed.
    2. If you select the consistency group option, if a total link failure is detected between the source and target LSS pair or if the volume (where the error is detected) becomes suspended and enters a long busy state, the primary host temporarily queues all the updates to the source volumes.
  8. In Create Paths — Verification, review the attributes and values that you selected to verify that they are correct.
  9. If the attributes and values are not correct, click Back as appropriate to return and then specify the correct values. Otherwise, click Finish to complete the consistency group process.
Related concepts
Path connections
Global Copy
Global Mirror
Metro Mirror
FlashCopy
Related tasks
Global Mirror setup (DS Storage Manager)
Recovering from a disaster using the fast reverse process
Performing a failover recovery operation
Creating a Global Copy volume pair
Creating a Metro Mirror relationship
Resynchronizing a Metro Mirror volume pair
Using Global Mirror for a planned failover and failback
Performing a failback recovery operation
Getting started with Copy Services
Related reference
Paths — Main page
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