EMC CX400 Installation Guide - Page 120
Test PowerPath, with a license key
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Linux Installation Checklist Task With Access Logix Reference Document 18 Server If you have a PowerPath license key PowerPath product Test PowerPath Note If your PowerPath license key is not registered, the load balancing policy guide with a license key is restricted to basic failover. ❑ View the LUNs available to the server using the following PowerPath command: powermt display dev=all class=clariion ❑ Choose one available LUN to receive I/O for the test. ❑ View the paths to the chosen LUN using the following PowerPath command: powermt display dev=x every=2 where x is a pseudo device that represents the chosen LUN. ❑ Start I/O to the LUN. ❑ Identify the HBA sending I/O to the LUN by viewing the output of the powermt display dev=x every=2 command, and disconnect the cable to that HBA. ❑ View the output of the powermt display dev=x every=2 command, and verify that • The state of the uncabled paths becomes "dead." • I/O continues to the remaining path(s) to the LUN, indicating that the failover path was successful, and PowerPath is working properly. ❑ Reconnect the cable that you disconnected from the HBA. ❑ If you caused any LUNs to trespass, restore the LUNs to their original SP with the following PowerPath command: powermt restore You are now ready to set up any optional software, such as SnapView or MirrorView, on the storage system. 3-12 EMC Installation Roadmap for CX-Series and FC-Series Storage Systems