• Cable routing is important. For example, YO and X cables must be routed along the right side of the rack
frame (as viewed from the rear) when you connect to a disk expansion drawer. Additionally, X cables
must be attached to the same numbered port on both SAS adapters to which it connects.
• When a choice of cable lengths is available, select the shortest cable that provides the needed
connectivity.
• Always use care when you insert or remove a cable. The cable should slide easily into the connector.
Forcing a cable into a connector can cause damage to the cable or connector. When you remove a cable,
pull straight back on the blue release tab. Do not pull the blue release tab off to the side, otherwise
breakage might occur. After the cable latch is released, pull on the black cable to remove it from the
connector.
• New SAS cables with mini-SAS HD narrow connectors are required for any PCIe3 SAS adapter
connection. These cables are also compatible with earlier PCIe2 SAS adapters.
• Not all cabling congurations are supported when you use solid-state drives (SSD). See Installing and
conguring Solid State Drives for more information.
Supported SAS cable information
The following table contains a list of the supported serial-attached SCSI (SAS) cable types and their
designed usage.
Table 97. Functions for supported SAS cables
Cable type Function
AA cable This cable is used to connect the top one or two ports
between two PCIe3 caching SAS RAID adapters.
AE cable These cables are used to connect a SAS adapter to a
media expansion drawer.
YO cable This cable is used to connect a SAS adapter to a disk
expansion drawer. The cable must be routed along the
right side of the rack frame (as viewed from the rear)
when you connect to a disk expansion drawer.
X cable This cable is used to connect two SAS adapters to a
disk expansion drawer in a RAID conguration. The
cable must be routed along the right side of the rack
frame (as viewed from the rear) when you connect to a
disk expansion drawer.
AE1 cable This 4 m (13.1 ft) SAS cable connects a PCIe3 SAS
adapter to a SAS tape drive or DVD I/O enclosure. The
AE cable has two connectors, one mini-SAS HD narrow
connector and one mini-SAS connector. The mini-SAS
HD Narrow connector attaches to a PCIe3 SAS
adapter. The mini-SAS connector attaches to a SAS
tape drive or DVD enclosure.
YE1 cable This 3 m (9.8 ft) SAS cable connects a PCIe3 SAS
adapter to one or two SAS tape drives in an I/O
enclosure. The YE1 cable has three connectors, one
mini-SAS HD (High Density) narrow connector and two
mini-SAS connectors. The Mini-SAS HD Narrow
connector attaches to a PCIe3 SAS adapter. Each
mini-SAS connector attaches to a different SAS tape
drive.
AS cable This 3 m (9.8 ft) SAS cable is used to attach a
DCS3700 to PCIe3 LP RAID SAS adapter.
112 Power Systems: Site and hardware planning
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