Validate the Current State of the System

Before installing new Drive Enclosures, it is imperative that the current state of the Oracle FS System matches the state of the system when the expansion plan was created. Changes in the SAS topology and the configuration of Drive Enclosure strings between the time that the expansion plan was completed and the time of the installation can render the plan invalid. Changes can also be potentially dangerous to system stability.

Prerequisites:

The current version of Oracle FS System Manager (GUI) is installed on your client workstation.
The current version of Oracle FS CLI (FSCLI) is installed on your client workstation.

For details about updating the GUI and the FSCLI, refer to Oracle Flash Storage System Administrator’s Guide.

Important! If the current state of the system does not match the state of the system when the expansion plan was created, stop the installation and consult with your Oracle Sales Engineer.

Make sure that the system has no topology violations.
1. Using an account set up with support role privileges, log into the FSCLI and issue fscli topology -list -violations.
2. Correct any topology violations before proceeding.
Gather the current state of the system’s SAS topology and configuration of Drive Enclosure strings.
1. Log into the FSCLI and issue fscli topology –download –topomap <output-text-file>.
  The system returns a file containing the topology map.
2. Compare the current topology map with the topology map captured during the planning process.
  The topology map contains the SAS topology and the current configuration of Drive Enclosure strings. If the current topology map matches the topology map captured during the planning process, proceed with the installation of the new Drive Enclosures. Otherwise, analyze the topology map to determine if the system can be updated in a straightforward way.
  For a system expansion to work properly, the Drive Enclosures that are currently installed must meet the following criteria:
  - The SAS topology must be free from rule violations.
  - Drive Enclosures and strings distribution adhere to the recommended guidelines.