Problem: SAS cabling not valid

If a SAS connection is not valid, use this information to verify the accuracy of the system cabling.

Verify that the SAS cabling is installed correctly by checking that all SAS connections meet the following requirements.

  1. If a connection between the control enclosure and any host in the system is not valid, check that the SAS cabling between the control enclosures and the hosts conforms to the following SAS connectivity rules.

    System node SAS ports describes the SAS ports on the system nodes.

    Table 1. System node SAS ports
    Onboard ports Lenovo Storage V3700 V2 Lenovo Storage V3700 V2 XP Lenovo Storage V5030 or Lenovo Storage V5030F
    SAS host None Ports 2 and 3 None
    SAS expansion Port 1 Port 1 Ports 1 and 2
    • Lenovo Storage V3700 V2 XP systems have two on-board 12 GB SAS host ports at ports 2 and 3.
    • Lenovo Storage V3700 V2, Lenovo Storage V5030, and Lenovo Storage V5030F systems support 12 Gbps SAS host attachment but require installation of the optional SAS host interface adapter.
    • The cables that are connected to the SAS host ports on each node canister in a control enclosure must attach to a redundant port pair on a host.
    • A connected port on the node canister must connect to a single port on a host. Cables that split the connector out into separate physical connections are not supported.
  2. If a connection between the control enclosure and an expansion enclosure is not valid, ensure that the SAS cabling conforms to the connectivity described in the SAS cabling guidelines topic.