To check for the prerequisites, see IBM Prerequisite website (www-912.ibm.com/e_dir/eServerPrereq.nsf).
Related tasks:
Serial-attached SCSI cable planning
Learn about how to install the SAS cables to the hard disk drives or solid-state drives.
Installing PCI adapters
Related reference:
“Important partitioning considerations with dual-slot and multi-adapter configurations” on page 4
Learn about partitioning considerations with dual-slot and multi-adapter configurations.
IBM Prerequisite website
Parts information
PCI adapter placement
“Backplane daughter cards and RAID enablement cards” on page 2
Find links to topics that cover Backplane daughter cards and RAID enablement cards.
Related information:
Logical partitioning
Information about logical partitioning.
Changing partition profile properties
Information about changing partition profile properties by using the HMC.
Dual IOA Enablement Card (FC 5662)
Information about the specifications for the Dual IOA Enablement Card.
SAS RAID controllers for AIX
Information about usage and maintenance information for the SAS RAID Controller for the AIX.
SAS RAID controllers for IBM i
Information about usage and maintenance information for the SAS RAID Controller for the IBM i.
SAS RAID controllers for Linux
Information about the usage and maintenance information for the SAS RAID Controller for Linux.
PCIe Dual - x4 SAS Adapter (FC 5901; CCIN 57B3)
Learn about the specifications and operating system requirements for the feature code (FC) 5901 adapter.
Overview
The PCI Express (PCIe) Dual - 4x SAS adapter is a low-profile short form factor adapter for
high-performance and high-density, serial attached SCSI (SAS) applications. It supports the attachment of
SAS disk, tape, and DVD by using a pair of mini SAS 4x connectors which allow the eight physical links
to be used in various narrow and wide-port configurations. The adapter does not have write cache.
The adapter is a 64 bit, 3.3 V, bootable SAS adapter that provides RAID 0, 5, 6, and 10 capability. Some
RAID level support is operating system dependent. The adapter provides RAID 0, RAID 5, RAID 6, and
RAID 10 for the AIX and Linux operating systems. IBM i operating system provides mirroring and data
spreading capability. FC 5901 does not support the RAID 5 and RAID 6 configurations. The adapter does
not have write cache. (The write performance of RAID 5 and RAID 6 can be poor on adapters that do not
provide write cache. Consider using an adapter which provides write cache when using RAID 5 or RAID
6.)
The adapter can address up to 48 SAS disk drives, although the actual number of drives in a system is
subject to the physical placement limitations of the system. Externally attached devices are designed to
run at a data rate of 1.5 Gbps for serial ATA (SATA) devices, and 3 Gbps for SAS devices. This card
Managing PCI adapters 177
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