The fast response cache accelerator (FRCA) can improve the performance of the IBM® HTTP Server when serving static content, such as text and image files. Support for FRCA is on AIX® and Windows® systems only.
The use of FRCA is discouraged, as it has been deprecated. FRCA might be removed in a future release. This release has no AFPA directives in the default configuration file.
The afpa.sys file
is no longer copied during the installation to the C:\Windows\system32\drivers\ directory.
The afpa.sys file is still supplied in the installation
directory for those who have used it in prior versions and want to continue
using it.
No support for Vista, Windows 2008, or
any 64-bit operating systems exists.
Read about deprecated features in the topic about deprecated features.
Read about Fast Response Cache Accelerator operational restrictions for information on restrictions and limitations.
When FRCA is enabled, the default configuration setting allows all static files to be cached. The cache automatically loads during server operation so that individual files do not need to be listed. Use the AfpaCache directive to turn caching on or off for specific directories.
FRCA will remove files from the cache when they change to avoid serving stale content.