POWER7 information

SAS storage configurations

Several SAS subsystem configurations are supported on the 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD systems.

The configuration you use depends on the combination of SAS features that you have installed on your system. The following table provides an overview of the features and related configurations.

Table 1. SAS subsystem configurations
SAS subsystem configuration	175 MB Cache RAID - Dual IOA enablement card (FC 5662)	External SAS components	SAS port cables	SAS cables	Limitations
Two-way split backplane	No Note: The two embedded SAS adapters report as CCIN 57C7.	None	None	Not applicable	IBM® i is not supported. Connecting to an external disk enclosure is not supported. Each set of three drives can be HDDs or SSDs.
Three-way split backplane	No Note: The two embedded SAS adapters report as CCIN 57C7.	Dual-x4 SAS adapter (FC 5901: CCIN 57B3)	Internal SAS port (FC 1815): SAS cable for three-way split backplane	AI cable (FC 3679): Adapter to internal drive 1 meter	IBM i is not supported. An I/O adapter can be located in another enclosure of the system. Each set of two drives can be HDDs or SSDs.
Dual storage IOA configuration using internal disk drives	Yes Note: The internal dual RAID IOA adapters report as CCIN 57CF.	None	None	Not applicable	Internal cable (FC 1815) cannot be used with the dual storage IOA or high availability (HA) RAID configuration. The six drives can be HDDs or SSDs.
Dual storage IOA configuration using internal disk drives and external disk enclosure	Yes Note: The internal dual RAID IOA adapters report as CCIN 57CF.	Requires an external disk enclosure (FC 5886 or FC 5887)	Internal SAS port (FC 1819): SAS cable assembly for connecting to an external SAS drive enclosure	YI cable (FC 3686): System to SAS disk enclosure, Single adapter with Dual path 1.5 meter YI cable (FC 3687): System to SAS disk enclosure, Single adapter with Dual path 3 meter	Only HDDs are supported.

Each node in a system can have a different SAS subsystem configuration.
Using the SAS drive assembly on nodes 3 and 4 is optional.

Send feedback | Rate this page

Last updated: Thu, October 10, 2013