Chapter 5. Designing and configuring for performance 121
Upcoming chapters cover tuning the configuration parameters for the database,
WebSphere, and TSM. First, we should consider configuration and design
options in the Resource Manager that can affect performance. As in the case of
the Library Server, you use the system administration client or the administration
APIs to set and change configuration parameters, turn functions on or off, and
define storage to the system.
5.6.1 Resource Manager properties
To reach the Resource Manager properties, open the system administration
client. From the left-side pane, expand the Library Server (ICMNLSDB) Æ
Resource Managers → the Resource Manager database (RMDB). Right-click
the Resource Manager database to select Properties to open the Resource
Manager Properties window. Right-click the Resource Manager database to
select the Staging area to open the Staging Area panel.
Properties
In the Resource Manager Properties panel, you can set the details stored in the
Library Server about the Resource Manager, including communications details,
logon details, token duration, the LAN cache switch, and a disable switch.
The Library Server and the system administration client use this connection
information to make connections to the Resource Manager. The connection
information includes host name, user ID, password, protocols, port numbers, and
access data used to log on.
Token duration
Token duration
specifies how long the security token, provided to a client to
access a document on this Resource Manager, will remain valid. The default is
48 hours. A client application may continue to access the resource object without
reference to the Library Server for the period that the token remains valid. If your
application frequently re-reads the same item on the Resource Manager, you can
store the item’s URL and go directly to the Resource Manager for the item for as
long as the token remains valid.
LAN cache
LAN cache
enables objects to be retrieved from the user’s default Resource
Manager if a copy is cached there. The user’s default Resource Manager should
be the physically closest Resource Manager or the Resource Manager with the
Note: The Resource Manager uses its own database connection pooling
methods, not the standard WebSphere database connections.
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