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Figure 52. SAS cable correctly inserted into the SAS port
Connecting optional 5U expansion enclosures
After you install 5U expansion enclosures into the rack, you must connect them to each system that will
use them. The system requires software version 7.8.0 or later. Do not connect the expansion enclosure if
software version 7.8.0 is not installed on the system.
About this task
This task applies if you are installing a 5U expansion enclosure.
Note: When you insert SAS cables, ensure that the connector is oriented correctly to the control
enclosure and expansion enclosure.
• For systems, Storwize V5100 control enclosures, and 2077-24F 2U expansion enclosures, the blue pull
tab must be below the cable (
Figure 53. SAS cable connector orientation
• For 2078-92F, 2078-A9F 5U expansion enclosures, the blue pull tab must be above the connector (
in Figure 53 on page 44).
• Insert the connector gently until it clicks into place. If you feel resistance, the connector is probably
oriented the wrong way. Do not force it.
• When inserted correctly, the connector can be removed only by pulling the tab.
Be aware of the following guidelines when you attach the cables to the SAS ports.
• No cable can be connected between a port on a left canister and a port on a right canister of the
expansion enclosures.
• Ensure that cables are installed in an orderly way to reduce the risk of cable damage when replaceable
units are removed or inserted.
• SAS cables must be routed through the cable management arms to reduce the risk of disconnecting the
nodes from their storage arrays. This step also helps to protect the SAS cables from getting damaged if
you slide the node or enclosure out of the rack while they are attached. Arrange your cables to provide
access to the following components:
44 Storwize V5100 : Quick Installation Guide for MTM 2078-424, 2078-12F, 2078-24F, 2078-92F, and 2078-
U5B
1
in Figure 53 on page 44).
2
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