Silicon Graphics Rackable C1110-RP6, User Manual

Page: 16 / 58

4 007-5843-002
1: Introduction and Overview
20 bit transfers, two per clock.) The 80-bit “flit” has 8 bits for error detection, 8 bits for “link-layer
header” and 64 bits for “data”. QPI bandwidths are advertised by computing the transfer of 64 bits
(8 bytes) of data every two clock cycles in each direction
Memory
The SGI Rackable C1110-RP6 system has 16 DIMM slots that support registered ECC
DDR3-1600/1333/1066/800 SDRAM. Memory DIMMs of the same size and speed are highly
recommended for best overall system performance. A minimum of two DIMMs are required for
the server to be functional. For best memory performance, install DIMMs in multiples of eight.
See “Installing System DIMM Memory” in Chapter 4, for more details on installing memory.
Serial ATA/SAS
A Serial ATA controller is integrated into the system serverboard to provide a SATA subsystem
with transfer rates up to 6 Gb/second. The optionally hot-swappable SATA drives are connected
to a backplane that provides power, bus termination and configuration settings. Optional SAS or
SATA RAID 0, 1, 5, 6 and 10 are supported (RAID 5 and 6 require optional hardware). Note that
RAID functionality is required for hot-swap capability.
Note: Your operating system must support RAID functionality in order to use RAIDed drives.
The Intel C600 chipset provides BIOS-assisted software RAID only, not hardware RAID.
Hardware RAID support is available as an optional configuration.
Contact your SGI sales or service provider to order a specific RAID upgrade if your system was
not ordered with that option.
PCI Expansion Slots
The serverboard has two external PCI-Express Gen3 x16 slots.One slot is a low-profile form
factor, the other is a (half-length) full-height PCIe slot.
On-board Controllers/Ports
The rear-mounted I/O ports include one COM port, a VGA (monitor) port, two USB 2.0 ports, and
three Gigabit Ethernet ports (LAN3 is a shared IPMI port). A special serial port is included for
system management.