Connecting SAS cables to expansion enclosures

If you have installed expansion enclosures, you must connect them to a control enclosure.

This task applies if you are installing one or more expansion enclosures. Each control enclosure in the system can manage two sets of expansion enclosures; each set can consist of a maximum of 10 expansion enclosures. Therefore, each control enclosure can manage up to 20 expansion enclosures. A system that contains two control enclosures can have up to 40 expansion enclosures.

Note: When connecting SAS cables between enclosures, you must follow a list of guidelines to ensure that your configuration is valid. Do not begin connecting the cables until you have read SAS cabling guidelines.

To install the cables, complete the following steps.

  1. Using the supplied SAS cables, connect the control enclosure to the expansion enclosure at rack position 1, as shown in .
    1. Connect SAS port 1 of the left node canister in the control enclosure to SAS port 1 of the left expansion canister in the first expansion enclosure.
    2. Connect SAS port 1 of the right node canister in the control enclosure to SAS port 1 of the right expansion canister in the first expansion enclosure.
    Figure 1. Connecting the SAS cables
    Image of V7000 Gen2 control and expansion enclosures that are connected by expansion enclosure attachment cables

  2. To add a second expansion enclosure chain to the control enclosure, use the supplied SAS cables to connect the control enclosure to the expansion enclosure at rack position 2. Refer to Figure 1 for an example.
    1. Connect SAS port 2 of the left node canister in the control enclosure to SAS port 1 of the left expansion canister in the second expansion enclosure.
    2. Connect SAS port 2 of the right node canister in the control enclosure to SAS port 1 of the right expansion canister in the second expansion enclosure.
  3. If additional expansion enclosures are installed, connect each one to the previous expansion enclosure in a chain; use two Mini SAS HD to Mini SAS HD cables, as shown in Figure 1.
    Note: A control enclosure can support up to 20 expansion enclosures (10 above the control enclosure and 10 below the control enclosure).
  4. If additional control enclosures are installed, repeat this cabling procedure on each control enclosure and its expansion enclosures.
Parent topic: Installing the Lenovo Storage V7000 hardware
Related tasks
Planning for SAS cabling to expansion enclosures
Replacing a SAS cable to an expansion enclosure
Replacing a Lenovo Storage V7000 Gen2 expansion enclosure attachment SAS cable
Related reference
SAS cabling guidelines