ptx/EFS V1.4.3 Release Notes

These release notes support ptx/EFS V1.4.3. ptx/EFS lets you create large files and filesystems of up to 1 TB in length for the DYNIX/ptx® operating system. In conjunction with ptx/CFS, ptx/EFS lets you create large files and filesystems in a cluster environment.

Read this document before you install or run this release of ptx/EFS. For information on large-filesystem support, refer to the DYNIX®/ptx Programming Tools Guide. For more information on ptx/EFS, refer to the ptx/EFS and ptx/CFS Administration Guide.


Product Compatibility

Use this version of ptx/EFS with the following products:


Software Installation

The software installation procedure is documented in the DYNIX/ptx and Layered Products Software Installation Release Notes.

If you install ptx/EFS for the root filesystem, create a custom miniroot using the buildmini command. Refer to the buildmini(1M) man page for more information.


1-KB and 2-KB Filesystems Supported, But Not Recommended

Although ptx/EFS supports 1-KB and 2-KB filesystems, performance is better with 4-KB filesystems. In order for an mmap file to be handled correctly, all but the last extent of the file must be a multiple of 4-KB bytes. For 1-KB and 2-KB filesystems, ptx/EFS reallocates extents to be multiples of 4-KB bytes as needed, but performance is slower.


Related Documentation

The following documentation is available on the online documentation CD and at http://webdocs.numaq.ibm.com/:

ptx/EFS and ptx/CFS Administration Guide


Open Problem Reports

This section lists the following problem report summaries:

The numbers in parentheses identify the problems in the problem-tracking system.


Fixed Problems in ptx/EFS V1.4.3

This release of ptx/EFS includes fixes for the following software defects:


Open Problems in ptx/EFS V1.4.3

This release of ptx/EFS contains no known open problem reports.