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Figure 22. Mode sticker locations at the rear of the enclosure

4. Ensure that all adapters that you need to connect to the 5887 disk drive enclosure are installed in the

system or expansion unit. If the adapters are not installed, complete the adapter installation

procedure for your system or expansion unit before you continue with this task.

5. If the system requires an internal cable to be installed to produce an external SAS port for connection

with the enclosure, conrm that the installation was completed.

Remember: When you install or conrm the use of an external SAS port, record the location of the

external SAS port on the system. Later in this procedure, you are instructed to install the external

SAS cable to this system connector location.

6. Determine the conguration that you use to cable the SAS adapter to the 5887 disk drive enclosure.

The following list shows some of the common connections, but not all possible connection options.

For more conguration options, see Planning for serial-attached SCSI cables (http://www.ibm.com/

support/knowledgecenter/POWER9/p9had/p9had_sascabling.htm).

• A mode 1 connection of one 5887 disk drive enclosure by using a YO cable to a single SAS adapter.

• A mode 1 connection of two 5887 disk drive enclosures by using YO cables to a single SAS adapter.

• A mode 1 connection of one 5887 disk drive enclosure by using YO cables to a SAS adapter pair.

• A mode 1 connection of two 5887 disk drive enclosures by using YO cables to a SAS adapter pair.

• A mode 2 connection of one 5887 disk drive enclosure by using YO cables to two independent SAS

adapters.

• A mode 2 connection of one 5887 disk drive enclosure by using X cables to two SAS adapter pairs.

• A mode 4 connection of one 5887 disk drive enclosure by using X cables to four independent SAS

adapters.

7. Locate the connection for each adapter for which you are using an external SAS cable to connect the

enclosure. Adapter cables attach to ports at the rear of the systems in which the adapters are

installed. To identify the SAS port location for the system in your conguration, see Connector

locations and select the appropriate model.

Power Systems: Installing the 5887 disk drive enclosure

IBM Power Systems 5887 User Manual

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