Direct connection

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By using a TCP/IP connection, the Copy Services Manager management server can connect directly to certain storage systems. The TCP/IP connection is required to discover a system’s configuration (such as LSSs, volumes, volume size, and format), issue queries, and receive asynchronous events.

The Copy Services Manager management server can connect directly with the following systems:

  • DS8000®
  • Systems running IBM Spectrum® Virtualize
  • Systems running IBM Spectrum Accelerate, including:
    • XIV®
    • FlashSystem A9000
    • FlashSystem A9000R

DS8000 storage systems on an IPv4 network can be connected directly to the management server. A direct connection requires an Ethernet card in the cluster. DS8000 systems on an IPv6 network cannot use a direct connection. They can be connected only through an HMC or z/OS® connection.

When you add a direct connection to a DS or ESS cluster, specify the following information for clusters 0 and 1:
  • IP addresses or domain names
  • Ports
  • User names
  • Passwords

FlashSystem V840, FlashSystem V9000, FlashSystem 9100, FlashSystem 9200, SAN Volume Controller, and FlashSystems/IBM Spectrum Virtualize systems can virtualize various storage systems. Although Copy Services Manager does not support all storage systems, you can manage other storage systems through a single FlashSystems/IBM Spectrum Virtualize or SAN Volume Controller cluster interface. Copy Services Manager connects directly to the FlashSystems/IBM Spectrum Virtualize or SAN Volume Controller clusters.

When you add a direct connection to a cluster to the Copy Services Manager configuration, specify the cluster IP address of the cluster. Ensure that the user name and password are correct for the cluster. If incorrect values are used, significant communication problems can occur, such as never advancing to the Prepared state.

Important: The storage system user name must have privileges to maintain SSH keys. For information about troubleshooting Secure Shell connections to the storage system, see the Ethernet Connection Restrictions on SAN Volume Controller website at www-01.ibm.com/support/docview.wss?uid=ssg1S1002896.