Exp3000 Attachment; Sas Cable - IBM DS3000 Introduction And Implementation Manual

Draft Document for Review August 30, 2007 12:59 am
Figure 3-1 SAS cable
The connectors are keyed to prevent improper insertion. There is a locking mechanism on the
connector. When inserting the connector, make sure it locks into the port. Similarly, when
disconnecting the cable, pull the plastic tab gently - this will release the locking mechanism
and you will be able to remove the cable. Do not use excessive force, as this can damage the
connector and the port.
When the cables are inside racks, the cables are usually routed along the cable management
arms. Do not try to make the SAS cable connections overly tight. Make sure there is enough
slack left, so that the cables do not get disconnected or possibly damaged when sliding a
DS3000 or EXP3000 enclosure out of the rack.

3.3 EXP3000 attachment

Here are some general rules to follow when attaching EXP3000 enclosures to a DS3000.
Connect the drive-side SAS port on the DS3000 controller to the SAS In port on the
EXP3000.
Connect the SAS Out Port on the EXP3000 to the SAS In port on the next EXP3000.
Single controller DS3000
Figure 3-2 shows a single controller DS3000 subsystem and three EXP3000 enclosures, with
a single ESM installed in each EXP3000. Following the rules above, connect the SAS ports
on the DS3000 and the EXP3000s as shown.
7065Cabling.fm
33
Chapter 3. Cabling