Document revision date: 30 March 2001
[Compaq] [Go to the documentation home page] [How to order documentation] [Help on this site] [How to contact us]
[OpenVMS documentation]


Previous

1.8 Online Reconfiguration

The FC interconnect can be reconfigured while the hosts are running OpenVMS. This includes the ability to:

OpenVMS does not automatically detect most FC reconfigurations. You must use the following procedure to safely perform an FC reconfiguration, and to ensure that OpenVMS has adjusted its internal data structures to match the new state:

  1. Dismount all disks that are involved in the reconfiguration.
  2. Perform the reconfiguration.
  3. Enter the following commands on each host that is connected to the Fibre Channel:


    SYSMAN> IO SCSI_PATH_VERIFY 
    SYSMAN> IO AUTOCONFIGURE 
    

The purpose of the SCSI_PATH_VERIFY command is to check each FC path in the system's IO database to determine whether the attached device has been changed. If a device change is detected, then the FC path is disconnected in the IO database. This allows the path to be reconfigured for a new device by using the IO AUTOCONFIGURE command.

Note

In the current release, the SCSI_PATH_VERIFY command only operates on FC disk devices. It does not operate on generic FC devices, such as the HSG command console LUN (CCL). (Generic FC devices have names such as $1$GGAnnnnn. This means that once the CCL of an HSG has been configured by OpenVMS with a particular device identifier, its device identifier should not be changed.

  [Go to the documentation home page] [How to order documentation] [Help on this site] [How to contact us]  
  privacy and legal statement  
6318FIBRE_CHANNEL_003.HTML