Compaq OSI/APLMGR D43 manual Fault Tolerance, Initiator-Identity and Filestore-Password Parameters

Responder Manager Initiator-Identity and Filestore-Password Parameters

Initiator-Identity and Filestore-Password Parameters

The initiator-identity and filestore-password parameters in the F-INITIALIZE request correspond, respectively, to the Guardian user ID and password on the Compaq system. Optionally, a default user ID and password can be set up in the Compaq FTAM configuration, allowing remote applications access to the responder and its VFS without sending a user ID and password across the network.

If defaults are not configured, your application must specify a Guardian user ID that allows access to the files in the VFS, along with its associated password.

Protocol-Error Counter

A protocol-error counter, whose value is configurable, specifies how many FTAM protocol errors must occur before an event message is generated on the Compaq system. These event messages can alert the Compaq problem solver to interoperability problems.

Increasing Responder Capacity

The Compaq system manager can increase responder capacity by doing one of the following:

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Increasing the maximum number of associations or attaches per responder process Adding more responder processes

Increasing Responder Performance

The system manager can often increase system performance or throughput by doing one or more of the following:

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Configuring responder processes to run in different Compaq CPUs Specifying a less fully occupied disk as the process swap volume Adjusting the execution priority of various processes

Adjusting some of the parameters in the underlying OSI/AS configuration

Fault Tolerance

Compaq FTAM provides some fault tolerance if responder processes are configured to run as NonStop process pairs, consisting of a primary process and a backup process. When processes run as NonStop process pairs, the startup configuration information for the primary process is checkpointed. If a hardware or software component fails, the backup process takes over.

If the primary responder process fails, all outstanding Compaq FTAM associations, as well as the associated OSI/AS connections, are aborted. The remote initiator receives an F-P-ABORT indication. After a delay, the remote FTAM application can retry establishing the association.

OSI/FTAM Responder Manual—425199-001

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