Cables
Specific X , YO, AA, or AT SAS cables with HD connectors are used to attach to the expansion
drawers.
SAS device attachment requires specific cables that are provided with the subsystem or device
features being attached. Special cabling is required for multi-initiator and high availability
configurations.
Voltage
3.3 V
Form factor
Short, full-height
Maximum number
For the maximum adapters supported, see the PCI adapter placement topic collection for your
system.
Attributes provided
v Provides three mini-SAS high-density (HD) connectors for attaching the SAS drives in the FC
5887 EXP24S, FC 5886 EXP12S, FC 5802, or FC 5803 12X PCIe I/O drawers. A maximum of
three EXP24S, or six EXP12S, or a mix of each can be attached to the same FC 5913 pair.
Note: If SSDs are installed in one of the FC 5886 EXP12S drawers, then a second FC 5886 is
not allowed to be attached (or cascaded) to the first FC 5886 on that port.
v Supports a maximum of 72 hard disk drives or a maximum 24 SSDs (depending on the type of
enclosures attached), or a combination of both with specific placement rules for each enclosure.
v If FC 5913 is controlling drives that are installed in FC 5802 or FC 5803, then the FC 5913
adapter pairs must be in that FC 5802 or FC 5803. The AA cable is required on the top
mini-SAS HD port of the adapter pair. Use a pair of FC 3689, 0.6 m AT SAS cables to connect
the FC 5913 adapter pair to the SAS connectors. An FC 5887 EXP24S or FC 5886 EXP12S can be
attached to the other port on the FC 5913 pair.
v An AA SAS cable with HD connectors attached to the FC 5913 pair provides a higher
performance path for mirrored write-cache data and mirrored RAID parity footprints between
the adapters and is required unless all three ports are being used to attach EXP24S or EXP12S
I/O drawers.
Note: Solid-state drives (SSDs) are not allowed on the top port (T2).
v Support of the SAS Serial SCSI Protocol (SSP) and Serial Management Protocol (SMP).
v Provides RAID 0, RAID 5, RAID 6, and RAID 10 with hot-spare capability. System level
mirroring through the operating system is also supported. JBOD functionality (512 byte) is not
supported except for the initial formatting to 528 bytes of new devices, as required.
v A single pair of FC 5913 adapters is not supported to attach to both halves of an FC 5887
EXP24S drawer that is configured in mode 2.
v Double looping of the I/O enclosure system connection is suggested to enhance performance
when more than four adapters are installed in either FC 5803 or FC 5873.
The following figure shows the adapter.
Managing PCI adapters 181
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