Technical data

System Management Features

4.5 OpenVMS Enterprise Directory for e-Business (Alpha)

• Inherent replication/shadowing features may be exploited to guarantee 100%

up-time

• Systems distributed around the world can be managed from a single point

• Ability to store all types of authentication and security certiﬁcates across the

enterprise accessible from any location

• Highly conﬁgurable schema

• In combination with AlphaServer technology and in-memory database delivers

market leading performance and low initiation time

For more detailed information, refer to the Compaq OpenVMS e-Business

Infrastructure CD-ROM package which is included in the OpenVMS Version 7.3

CD-ROM kit.

4.6 Extended File Cache (Alpha)

The Extended File Cache (XFC) is a new virtual block data cache provided with

OpenVMS Alpha Version 7.3 as a replacement for the Virtual I/O Cache.

Similar to the Virtual I/O Cache, the XFC is a clusterwide, ﬁle system data cache.

Both ﬁle system data caches are compatible and coexist in an OpenVMS Cluster.

The XFC improves I/O performance with the following features that are not

available with the Virtual I/O Cache:

• Read-ahead caching

• Automatic resizing of the cache

• Larger maximum cache size

• No limit on the number of closed ﬁles that can be cached

• Control over the maximum size of I/O that can be cached

• Control over whether cache memory is static or dynamic

For more information, refer to the chapter on Managing Data Caches in the

OpenVMS System Manager’s Manual, Volume 2: Tuning, Monitoring, and

Complex Systems.

4.7 /ARB_SUPPORT Qualiﬁer Added to INSTALL Utility (Alpha)

Beginning with OpenVMS Alpha Version 7.3, you can use the /ARB_SUPPORT

qualiﬁer with the ADD, CREATE, and REPLACE commands in the INSTALL

utility. The ARB_SUPPORT qualiﬁer provides Access Rights Block (ARB) support

to products that have not yet been updated the per-thread security Persona

Security Block (PSB) data structure.

This new qualiﬁer is included in the INSTALL utility documentation in the

OpenVMS System Management Utilities Reference Manual.

4.8 MONITOR Utility New Features

The MONITOR utility has two new class names, RLOCK and TIMER, which you

can use as follows:

• MONITOR RLOCK: the dynamic lock remastering statistics of a node

• MONITOR TIMER: Timer Queue Entry (TQE) statistics

System Management Features 4–7