Procedure: Finding the status of SAS connections

Find the status of the SAS connections between canisters in different enclosures.

Determine the state of the SAS ports by using one of the following methods:

• In the management GUI, select to Monitoring > System.
• On the System - Overview page, select SAS Chain View to display the SAS ports. SAS ports that are not connected are displayed as offline.
  • It is normal for port 2 of the canisters in the expansion enclosure at the end of a SAS chain to be offline.
  • If no expansion enclosures are connected to a system, it is normal for port 4 of each canister in the control enclosure to be offline.

  Attention: The system can identify some SAS cabling errors and log an event to alert you to the error. Go to the Monitoring > Events page of the management GUI and identify alerts concerning hardware errors and SAS cabling errors. Run fix procedures in the recommended order.
• To connect a link that is not connected, complete the following actions while checking the link status after each step until the link is connected:
  1. Ensure that both ends of each SAS cable are correctly inserted into their correct ports, as described in Problem: SAS cabling not valid.
  2. Replace the expansion enclosure at one end of the connection.
  3. Replace the node canister at the other end of the connection.