Cluster Nodes; Management Node; Storage Nodes - IBM eserver Cluster 1350 Installation And Service Manual

v Console
v KVM switch
v 10/100 Mb Ethernet switch
v 1 Gb Ethernet switch
v SMC mini-GBIC expansion module
v Terminal server
v High-speed Myrinet switch
v Myrinet cluster expansion card
v High-speed Cisco switch
v Power management module
v Power distribution unit (PDU)

Cluster nodes

A cluster must contain at least four cluster nodes. The cluster nodes perform the
computational tasks in the cluster. Cluster nodes are also known as compute
nodes.
The cluster nodes are a combination of the following components:
v Eserver
v xSeries 335
v xSeries 345
v Eserver BladeCenter
See Table 1 on page 1 for more information about the Linux software versions
supported on cluster nodes.

Management node

Each cluster contains one management node, which provides system management
for all modules in the cluster. The Cluster 1350 management node is typically an
xSeries 345 server running Linux. You can also use an Eserver 325 server as the
management node in a cluster environment running a 64-bit Linux operating
system.

Storage nodes

The optional storage nodes manage the mass storage. The cluster supports up to
32 storage nodes. The total number of storage and compute nodes cannot exceed
512.
For tasks that do not require large amounts of mass storage, the storage node has
onboard disk storage that is typically sufficient. The storage nodes can be any of
the following servers in the primary cabinet running the Linux operating system:
v Eserver 325 - a 1 U storage unit
v xSeries335 - a 1 U storage unit
v xSeries 345 - a 2 U storage unit
v xSeries 360 - a 3 U storage unit
v Eserver BladeCenter unit populated with HS20 blade servers
®
325
™
unit populated with HS20 blade servers
Chapter 1. System overview
5