External device setting changed

• LU path settings might have been changed by using LUN Manager. If this happens, either:

  - Use LUN Manager to change the settings back to the values used when the volume was mapped

  - Use Universal Volume Manager software to delete the LU, and then add it again.

• The access attribute of the volume might have been changed by Data Retention Utility. If the volume is protected by the access attribute, release the protection.

Illegal request or

Response error

• If the volume is a pair volume, it might be protected because of the pair status. If this is the case, change the pair status or delete the pair. Make sure the volume is not set to a pair such as ShadowImage, TrueCopy, Universal Replicator, or global-active device.
• The access attribute of the volume might have been changed by Data Retention Utility. If the volume is protected by the access attribute, release the protection.

Cannot detect port

• There is a problem with connection to the external storage system. The possible causes are:

  - Cable connection. Make sure the cable is connected correctly.

  - Port settings. The topology settings of the external port and the target port might not match.

  - Switch settings. If the external storage system is connected through switches, make sure that the switch settings are correct.

  Make sure the cables are connected correctly, and then use LUN Manager to set the ports properly.

• LUN security might have been enabled by using LUN Manager. If so, check whether the LUN security setting is correct.