Redundant Npc Modules; Severity Levels; Level 1 Severity Events (Examples) - Acer Altos RAIDWatch Manual

Management program

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11.3 Redundant NPC Modules

Figure 11–1

The NPC and Primary Agent should be, as shown in Figure 11–1, installed redundantly on two

different servers in case the Primary Agent or

should fail, the Primary Agent and NPC installed on another server will continue event notification.

This method is applied for the consideration that fatal system failure might occur unnoticed at the

time when the only NPC or Primary Agent is unable to function.

Redundant NPC modules should not be installed without Primary Agents. Run the Altos RAIDWatch

configuration procedure and enable this function by designating another server as where the

standby modules will be installed. Primary Agent and NPC module must then be installed manually

on that particular server (either a RAID server or not). The installation utility does not automatically

add these modules to the selected server.

Altos RAIDWatch classifies disk array events into three severity levels. The first level includes non-

critical information events such as initialization of the controller and initiation of the rebuilding

process. Level 2 severity includes events which require the issuance of a warning message. Level 3

severity is the most serious level, and includes events that need immediate attention. The following

sections provide example events for each level:

• Controller Initialization Complete

• Rebuild Initiated

• Rebuild Complete

• Rebuild Failed

• Logical Drive Initialization Started

• Logical Drive Initialization Complete

• Logical Drive Initialization Failed

NPC

module should fail. If the Primary Agent or NPC

The NPC

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