– IBM i 6.1, or later
Related tasks:
Installing PCI adapters
Related reference:
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.
PCIe2 3.1GB Cache Integrated SAS RAID Adapter (CCIN 57C3)
included in Feature 5888
Learn about the specifications and operating system requirements for the PCIe2 3.1GB Cache Integrated
SAS RAID adapter that is integrated with the EXP30 Ultra SSD I/O Drawer (feature code 5888 PCIe
storage enclosure). The adapter reports as PCIe2 3.1GB Cache RAID SAS Enclosure 6Gb x8.
Overview
The PCIe2 3.1GB Cache Integrated SAS RAID adapter is an internal PCI Express generation-2 (PCIe2),
serial-attached SCSI (SAS) Random Array of Independent Disks (RAID) adapter integrated into the 5888
PCIe storage enclosure. The adapter contains the SAS RAID controller and SAS Expander. The internal
adapter with the SAS RAID controller and SAS Expander is called as the enclosure RAID module (ERM).
This adapter supports the attachment of the 1.8 inch SAS solid-state drive feature ES02. The 5888 PCIe
storage enclosure connects to the server via a PCIe x8 cable from each ERM PCIe x8 cable port. The PCIe
cable is connected to the GX ++ PCIe2 adapter in the server.
The FC 5888 PCIe storage enclosure is always supplied with two PCIe2 3.1GB Cache Integrated SAS
RAID adapters preinstalled. These must be used in a high availability, multi-initiator RAID configuration
with the two adapters in dual-controller mode (Dual Storage IOA configuration).
Each of the two high performance, integrated SAS controllers physically provide 3.1 GB write-cache.
Working as a pair, they provide additional performance and adapter redundancy with mirrored
write-cache data and mirrored RAID parity footprints between the adapters. The cache contents are
designed to be protected by integrated flash memory with capacitors in case of power failure without the
need for batteries as were used with previous large cache adapters. If the pairing is broken, write-cache is
disabled after existing cache content is written out to the drives and performance may be degraded until
the controller pairing is reestablished.
Both controllers can support a minimum of 6 SSD and a maximum of 30 SSD. The SAS SSD bays are
always physically one set of drives, even though there may be multiple RAID arrays in this one set. With
two or more RAID arrays, each RAID array can be optimized to either of the integrated SAS controllers
to take advantage of Active/Active performance improvements via the R/W bandwidth of both adapters.
The location codes for the PCIe connector on the PCIe2 3.1GB Cache Integrated SAS RAID adapter are:
1. Internal adapter ERM 1: C1-T3
2. Internal adapter ERM 2: C2-T3
See Figure 62 on page 190 for the location codes for the PCIe2 3.1GB Cache Integrated SAS RAID adapter
in the 5888 PCIe storage enclosure.
Managing PCI adapters 189
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