SRDF/TF Manager

Summary:

Perform SRDF Operations via the SRDF/TF Manager (STM) within the ControlCenter Console

Objectives:

a)                 Create Device Groups and add devices to Devices Groups for SRDF Operations

b)                 Determine the SRDF status devices in a Device Group.

c)                 Modify SRDF operational modes.

d)                 Perform SRDF operations (Failover, Failback, Split, Establish, Suspend, Resume).

      1.            Launch the ControlCenter Console

In this Lab we will be focusing on the SRDF capabilities within the ControlCenter Console

      2.            SRDF Operations

a)     Click on the “Data Protection” Button so that the TimeFinder, SRDF and QoS options show on the main menu.

b)     Identify SRDF devices presented to your host.

(1)  Drill down into the Hosts folder on the Tree, identify the host assigned to you and drill down into your host.

(2)  Click on the Relationship Button from the Short Cut bar to make the Target Panel heading “Relationship”.  Click and drag the “Host Devices” folder of your host into the Target Panel. This will show you a relationship view of all the devices presented to your host. The Symmetrix array will appear to the right of the display, the SRDF devices can be identified by the “Arrows” on the devices. List the SRDF devices presented to your host.

c)      Create a SRDF Device Group and add assigned SRDF devices to it:

(1)  Use the Device Group Wizard to create a device group with the RDF devices on the host assigned to you.

(2)  Call your instructor for help if you run into any problems.

(3)  Drill down into the “Device Group” folder. You should see the newly created device group. Drill down into the newly created device group. It will have a number of folders. One of them will be “R1 Devices” or “R2 Devices” depending on the Type you chose when you created the device group.

d)     Checking the SRDF Status and Operating Mode

(1)   Clear all objects from the Target Panel by clicking on the “Eraser Button” in the Objects Tree Pane. Then choose “SRDF” from the “Data Protection” pull down menu to change the Target Panel to the SRDF View.

(2)  Click and drag your Device Group into the Target Panel.  SRDF information on all the devices in your device group will now be shown in the target panel. Record the following information.

e)     Call your instructor for help if the “Pair State” is not “synchronized” or if the “Mode” is not “Synchronous”.

f)        Changing the SRDF operational mode:

(1)  Let us first change the Primary mode for the whole device group. Right click on the device group > Choose “Data Protection” > SRDF > Mode Control…. This will open up the SRDF mode control window. Check the “Mode” box and choose “semi-sync” Primary mode. Click OK, wait for the success window and then wait till the SRDF view changes and shows you the newly set primary mode.

(2)  Enabling Adaptive Copy mode. Right click on the device group > Choose “Data Protection” > SRDF > Mode Control…. This will open up the SRDF mode control window. Click on the Adaptive copy box and then choose “write pending” and click OK. Wait for the success window and then record the changes made to the SRDF view.

(3)  Change the Primary mode back to sync.  Right click on the device group > Choose “Data Protection” > SRDF > Mode Control…. This will open up the SRDF mode control window. Click the “Mode” box and choose “sync”, click OK.  You will see that choosing the Sync mode automatically disables the Adaptive copy mode.

g)     Disaster Recovery Operations: Performing Failover and Failback operations

(1)  Failover: Right click on the device group > Choose “Data Protection” > SRDF > Fail Over…. This will open up the SRDF Fail Over window. Click OK. The Fail over operation will occur. Record the following information from the SRDF view window after the changes have occurred. What is the significance of these changes?

(2)  Failback: Right click on the device group > Choose “Data Protection” > SRDF > Fail Back…. This will open up the SRDF Fail Back window. Click OK. The Fail back operation will occur. Record the following information from the SRDF view window after the changes have occurred.

h)      Concurrent Operations: Performing Split operation for concurrent access and then an Establish operation to continue normal SRDF operation.

(1)  Split: Right click on the device group > Choose “Data Protection” > SRDF > Split…. This will open up the SRDF Split window. Click OK. The Split operation will occur. Record the following information from the SRDF view window after the changes have occurred. Comment on the significance of these changes.

(2)  Establish: Right click on the device group > Choose “Data Protection” > SRDF > Establish…. This will open up the SRDF Establish window. Click OK. The Establish operation will occur. Record the following information from the SRDF view window after the changes have occurred.

i)        SRDF Lab Clean Up: Delete the SRDF device group that you had created. Right Click on the device group and choose Delete. Confirm the deletion.

END of exercise.

Good Luck!