Skip to main content

Reconfiguring the FC switch layout

Before you begin

You must identify the FC switches present in the fabric domain.

You need the admin password and access to an FTP or SCP server.

About this task

This procedure is nondisruptive and takes approximately four hours to complete (excluding rack and stack) when disks are zeroed.

  1. Sending a custom AutoSupport message prior to reconfiguring switches
    Before reconfiguring your switches, you should issue an AutoSupport message to notify Lenovo technical support that maintenance is underway. Informing technical support that maintenance is underway prevents them from opening a case on the assumption that a disruption has occurred.
  2. Verifying the health of the MetroCluster configuration
    You should check the health of the MetroCluster configuration to verify proper operation.
  3. Persistently disabling the switches
    You must disable the switches in the fabric persistently so that you can modify its configuration.
  4. Determining the new cabling layout
    You must determine the cabling for the new controller modules and any new disk shelves to the existing FC switches.
  5. Applying RCF files and recabling the switches
    You must apply the appropriate reference configuration (RCF) files to reconfigure your switches to accommodate the new nodes. After you apply the RCF files, you can recable the switches.
  6. Persistently enable the switches
    You must enable the switches in the fabric persistently.
  7. Verifying switchover, healing, and switchback
    You should verify the switchover, healing, and switchback operations of the MetroCluster configuration.