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162 IBM System Storage DS6000 Series: Copy Services in Open Environments

Figure 14-11 Create paths: Verification

After you finish, you are again in the Paths panel and you see the result of your configuration.

See Figure 14-12.

Figure 14-12 Create path: See result

14.9.2 Add paths

There are situations when you need to add additional paths to Metro Mirror:

򐂰 Getting more redundancy.

򐂰 Getting more bandwidth.

򐂰 Changing the ports you are using for Metro Mirror. With the GUI, you first must increase

the number of paths using the new ports. Only then can you delete the paths over the

ports you no longer want to use. You always have to be observant to make sure that you

have sufficient bandwidth for your applications.

On the Paths panel, select the correct Storage Complex, the correct Storage Unit, and your

source LSS. Now, you see the paths from your source LSS. See Figure 14-13 on page 163.

Chapter 14. Metro Mirror interfaces and examples 163

Select Create on the pull-down menu.

Figure 14-13 Add paths: Paths panel

Select your source LSS and click Next. See Figure 14-14.

Figure 14-14 Add paths: Select source LSS

Select the Storage Complex, the Storage Unit, and your target LSS. See Figure 14-15 on

page 164. Click Next to proceed.

164 IBM System Storage DS6000 Series: Copy Services in Open Environments

Figure 14-15 Add paths: Select target LSS

Select the additional ports for the additional path or paths. See Figure 14-16. Click Next to

proceed.

Figure 14-16 Add paths: Select source I/O ports

Select your target I/O port. See Figure 14-17 on page 165. Click Next to proceed.

Chapter 14. Metro Mirror interfaces and examples 165

Figure 14-17 Add paths: Select target I/O ports

This panel allows you to create a Consistency Group between the LSSs. See Figure 14-18.

For information about Consistency Groups and how they work, see 12.4, “Consistency Group

function” on page 118. Click Next to proceed.

Figure 14-18 Add paths: Select path options

You can verify your selection and establish the path by clicking Finish. See Figure 14-19 on

page 166.

Note: For performance reasons, we recommend you use different ports from the ones you

are already using for the existing paths.