Link Fault Tolerance (Lft) - Hitachi Compute Blade 2000 User Manual

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LAN cables must be connected to both the active and

standby management modules to enable continuous

connection to the management interfaces at failover.

Link Fault Tolerance (LFT)

When the management module is configured redundantly, you can also build

redundancy into the management network. This functionality is known as Link Fault

Tolerance (LFT). An overview of LFT is shown in the following figure.

BladeSmyphony 2000 Cha ssi s

Server blade

Management module :

3. Communication is recovered via a path between the standby L2SW and the acti ve L2SW.

1. Detects linkdown in the

associated LANSW, and

closes ports on the active

management module.

Switch module

2. Opens ports on the standby

management module.

Management module :

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