HP Brocade BladeSystem 4/24 Brocade Network Advisor SAN User Manual v11.1x (53 - Page 576

18 Configuring encrypted tape storage in a multi-path environment Configuring encrypted tape storage in a multi-path environment This example assumes one host is accessing one storage device using two paths: • The first path is from Host Port A to Target Port A, using Encryption Engine A for encryption. • The second path is from Host Port B to Target Port B, using Encryption Engine B for encryption. Encryption Engines A and B are in switches that are already part of Encryption Group X. The following procedure is used to configure this scenario using the Management application. 1. Configure Host Port A and Target Port A in the same zone by selecting Configure > Zoning from the Management application's main menu. 2. Configure Host Port B and Target Port B in the same zone by selecting Configure > Zoning from the Management application's main menu. 3. Select Configure > Encryption from the menu task bar to open the Encryption Center dialog box. 4. Click View Groups to display the encryption groups (if groups are not already displayed). 5. Select Encryption Group X, then click the Targets icon. 6. From the Encryption Targets dialog box, click Add to open the Configure Switch Encryption wizard. Use the wizard to create a target container for Encryption Engine A with Target Port A and Host Port A. 7. Repeat Step 6 to create a target container for Encryption Engine B with Target Port B and Host Port B. Up to this point, the Management application has been automatically committing changes as they are made. The targets and hosts are now fully configured; only the LUN configuration remains. 8. In the Encryption Targets dialog box, select Target Port A, click LUNs, then click Add. Select the LUNs to be encrypted and the encryption policies for the LUNs. 9. Select Target Port B, click LUNs, then click Add. Select the LUNs to be encrypted and the encryption policies for the LUNs, making sure that the encryption policies match the policies specified in the other path. 10. Click Commit to make the LUN configuration changes effective in both paths simultaneously. The Management application does not automatically commit LUN configuration changes. This allows matching changes made in a multi-path environment to be committed together, preventing cases where one path may be encrypting and another path is not encrypting, resulting in corrupted data. You must manually commit any LUN configuration changes, even in non-multi-path environments. The Encryption Targets dialog box will display a reminder if you attempt to close the dialog box without committing your changes. NOTE There is a limit of 25 uncommitted LUN configuration changes. When adding more than eight LUNs in a multi-path environment, repeat step 8 through step 10 above, adding only eight LUNs to each target container at a time. Each commit operation will commit 16 LUNs, eight in each path. 532 Brocade Network Advisor SAN User Manual 53-1002167-01