
HP/Convex SPP2000 (S-Class/X-Class) Clustering
4.49.3 Clustering
Multiple Exemplar SPP2000/HP S-Class systems can be connected together to form a single large sys-
tem, a “Wall” /X-Class.
Up two 32 single nodes can be clustered together to form a system with up to
– 512 processors
– 512GB of RAM
– 768 PCI slots
– 640 SCSI drives
Clustered SPP2000s/X-Class are ccNUMA computers; they are not fully conformant to the PA-
RISC 2.0 specification (and thus do not run standard HP-UX).
Multiple systems are connected via two CTI rings: these links attach to the eight memory con-
trollers of a node. A single system attaches to other single “nodes” and their respective crossbars
with a node-to-note data rate of 3.8GB/s.
The two rings are called X-ring and Y-ring.
The links are implementations of the IEEE SCI from Convex — Convex Toroidal Interconnect.
Each node’s main memory is globally accessible from other nodes on the CTI network (that is,
local memory is globally shared).
A part of each system’s main memory is reserved for cache memory for the CTI network (config-
ured statically at boot time).
4.49.4 External connectors
68-pin VHDCI Ultra LVD external SCSI
Three DB9 male RS232C serial (local console, remote console, general purpose) via a DB25 “M
cable”
10/100Mbit Ethernet TP/RJ45
10/100Mbit Ethernet TP/RJ45 LAN console
4.49.5 ROM update
There is an firmware update available for the SPP2000 which contains the latest version 4.2.1.
PF_CV220421.txt
235
has details about the contents and installation of the patch.
PF_CV220421.tar.gz
236
contains the patch.
235
ftp://ftp.itrc.hp.com/firmware_patches/hp/cpu/PF_CV220421.txt
236
ftp://ftp.itrc.hp.com/firmware_patches/hp/cpu/PF_CV220421.tar.gz
321
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