I/O Drawers; Pci-Ddr 12X Expansion Drawers (Fc 5796); I/O Drawer Pcie (Fc 5802 And Fc 5877) - IBM Power 780 Technical Overview And Introduction

SCSI disks are not supported in the Power 770 and 780 disk bays. However, if you want to
use SCSI disks, you can attach existing SCSI disk subsystems.
The disk/media backplane feature FC 5652 provides six SFF disk slots and one SATA media
slot. In a full configuration with four connected building blocks, the combined system supports
up to four media devices with Media Enclosure and Backplane FC 5652. The SATA Slimline
DVD-RAM drive is the only supported media device option. It was refreshed, and the feature
code was changed from FC 5762 to FC 5771.

1.6 I/O drawers

The system has eight I/O expansion slots per enclosure, including two dedicated GX++ slots.
If more PCI slots are needed, such as to extend the number of LPARs, up to 32 PCI-DDR
12X Expansion Drawers (FC 5796) and up to 16 12X I/O Drawer PCIe features (FC 5802 and
FC 5877) can be attached.
The Power 770 and the Power 780 servers support the following 12X attached I/O drawers,
providing extensive capability to expand the overall server expandability and connectivity:
Feature FC 5802 provides PCIe slots and SFF SAS disk slots.
Feature FC 5877 provides PCIe slots.
Feature FC 5796 provides PCI-X slots.
The 7314-G30 drawer provides PCI-X slots (supported, but no longer orderable).
Disk-only I/O drawers are also supported, providing large storage capacity and multiple
partition support:
Feature FC 5886 EXP12S holds a 3.5-inch SAS disk or SSD.
Feature FC 5887 EXP 24S SFF Gen2-bay Drawer for high-density storage holds SAS
Hard Disk drives.
The 7031-D24 holds a 3.5-inch SCSI disk (supported, but no longer orderable).
The 7031-T24 holds a 3.5-inch SCSI disk (supported, but no longer orderable).

1.6.1 PCI-DDR 12X Expansion Drawers (FC 5796)

The PCI-DDR 12X Expansion Drawer (FC 5796) is a 4U tall (EIA units) drawer and mounts in
a 19-inch rack. Feature FC 5796 takes up half the width of the 4U (EIA units) rack space.
Feature FC 5796 requires the use of a FC 7314 drawer mounting enclosure. The 4U vertical
enclosure can hold up to two FC 5796 drawers mounted side by side in the enclosure. A
maximum of four FC 5796 drawers can be placed on the same 12X loop.
The I/O drawer has the following attributes:
A 4U (EIA units) rack-mount enclosure (FC 7314) holding one or two FC 5796 drawers
Six PCI-X DDR slots: 64-bit, 3.3 V, 266 MHz (blind-swap)
Redundant hot-swappable power and cooling units
1.6.2 12X I/O Drawer PCIe (FC 5802 and FC 5877)
The FC 5802 and FC 5877 expansion units are 19-inch, rack-mountable, I/O expansion
drawers that are designed to be attached to the system by using 12X double data rate (DDR)
cables. The expansion units can accommodate 10 generation-3 cassettes. These cassettes
can be installed and removed without removing the drawer from the rack.
Chapter 1. General description
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