Connecting SAS cables to expansion enclosures

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

Before you begin

If you purchased disk drives that were not preinstalled for you, you must install all of the drives before connecting the SAS cables to the expansion enclosures.

About this task

This task applies if you are installing one or more expansion enclosures. You can attach up nine expansion enclosures to the control enclosure.

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.

Procedure

To install the cables, complete the following steps.

  1. Using the supplied SAS cables, connect the control enclosure to the first expansion enclosure as shown in Figure 1.
    1. Connect SAS port 4 of the left node canister in the control enclosure to SAS port 1 of the left expansion canisters in the first expansion enclosure.
    2. Connect SAS port 4 of the right node canister in the control enclosure to SAS port 1 of the right expansion canisters in the first expansion enclosure.
    Figure 1. Connecting the SAS cables
    Image of control and expansion enclosures that are connected by expansion enclosure attachment cables
  2. If additional expansion enclosures are installed, connect each one to the previous expansion enclosure, as shown in Figure 1.
    1. Use one cable to connect SAS port 2 of the left expansion canister in the previous expansion enclosure to SAS port 1 of the left expansion canister in the newly installed expansion enclosure.
    2. Use the second cable to connect SAS port 2 of the right expansion canister in the previous expansion enclosure to SAS port 1 of the right expansion canister in the newly installed expansion enclosure.
    Note: A control enclosure can support up to nine expansion enclosures.