3.6.0 Matrix Server 3.6.0 Administration Guide (5697-7081, December 2007)

Chapter 3: Introduction to Matrix Server 14

SNMP Service

The Matrix Server SNMP service provides tools that can be used to

retrieve all matrix-wide state and status information. The service includes

the following:

• An SNMP extension agent that is used by the Microsoft SNMP service.

(The Microsoft SNMP service must be installed and configured on the

servers in the matrix.)

• MIBs that can be loaded into the MIB browser tool provided with your

Network Management Station (NMS).

• An SNMP event notifier service that can send Matrix Server events as

SNMP traps.

Event Notifier Services

Matrix Server provides event notifier services that can be configured to

respond when certain matrix events occur. The services can send an

SNMP trap to an SNMP trap forwarding target, send email to certain

addresses, or run a script. Each service can be configured with the specific

events that should trigger a response from the service.

Matrix Design Guidelines

Be sure to consider the following guidelines when planning the physical

configuration of your Matrix Server matrix.

Server Memory

Memory resources are consumed on each matrix server to manage the

state necessary to preserve the coherency of shared filesystems. For this

reason, the servers in the matrix should have approximately equal

amounts of physical memory. As a guideline, the ratio of memory

between the smallest and largest servers should not exceed 2. For

example, the smallest server could have 1 GB of memory and the largest

server 2 GB. If this ratio is exceeded (such as a 256 MB server and a 2 GB

server, with a ratio of 8), paging can increase on the smallest server to the

extent that overall matrix performance is significantly reduced.