IRIX® 6.5.22 Release
As of November 5, 2003 IRIX 6.5.22 is releasing with all new systems shipping from SGI worldwide manufacturing centers.
The IRIX 6.5.22 release contains both maintenance and feature updates. This release continues the focus on stability, reliability, security and compatibility required in the IRIX 6.5.XX quarterly release process.
Approximately 121 customer-reported incidents are fixed in this release. In addition to bug fixes, IRIX 6.5.22 delivers several software enhancements, extensions and additional installation improvements.
Since a major goal of the IRIX® 6.5 release process is to provide a feature path as stable as the maintenance path, the same bug fixes and software enhancements exist in both paths.
The general distribution process is through the online ordering system. IRIX 6.5.21m and 6.5.21f images are also available for download off Supportfolio.
IRIX 6.5.22 Key New Features
New Software Enhancements - Maintenance and Feature Stream
Changes to CXFS Packaging in IRIX 6.5.22
Note: If you are upgrading from a previous IRIX release and have CXFS installed, you must upgrade both IRIX and CXFS. If you try to upgrade one without the other, conflicts will occur.
CXFS customers should make sure that their CXFS support contract contains the CD media option. This option is required for future delivery of the latest features, enhancements, and bug fixes, available only on CD. The CD media option allows you to take advantage of secure and expedited delivery via our online ordering system, Software Updates on Supportfolio, or by calling your local support center.
For further information on this packaging change and CXFS support, go to the following page on Supportfolio: http://support.sgi.com/search_request/publications/index.
Publication type: news
Product type or keyword(s): CXFS Separate CD Media
Support was added to enable a version 2 filesystem directory with case-insensitive filenames. This feature is normally used only when the filesystem will be used by CXFS clients running the Windows® operating system.
Trusted IRIX and IRIX extended attribute support added to UDF filesystems
Checkpoint and Restart
New features of REPLACE keyword of the cpr command
Checkpoint/Restart users are encouraged to review the information on this behavior change detailed in the IRIX Checkpoint and Restart Operation Guide.
Support for Pluggable Authentication Module (PAM)
New musicplayer application
Improvements to NFS operation
Changes have been made to the operation of the buffer cache during NFS operation. These updates maintain I/O performance under heavy load and improve the efficiency of I/O in general.
A new mode has been added to the IRIX's kernel NFS service where the number of NFS server daemons grows and shrinks in response to NFS load. Previously on IRIX this was a fixed number that the system administrator had to choose, and both the default number and the recommended tuning procedure ensured inadequate NFS performance for many workloads. IRIX now requires less tuning and will perform better out of the box.
A new -d option has been added to the nfsstat command that will display statistics about individual NFS daemons.
NFS now provides an optional "async" mode to improve write performance. This mode is set with the async option of the exportfs command. By allowing an administrator to switch from synchronous write/commit cycles to performing the same operations asynchronously, NFS writes can finish up-to 10 times faster on the client and server can perform writes in the way which can optimize backend filesystem IO pattern. This option is recommended only for heavy synchronous write loads.
An "offline" option to the exportfs command has been added for use with FailSafe® operations. Historically Failsafe stopped NFS-related activity by killing NFS daemons. With the "offline" option a selected subset of filesystem can be moved offline while NFS server can continue to serve requests to other filesystems.
Network time protocol (NTP) support
Bind Version 9.2.2
- IP version 6
- DNS protocol enhancements
- Multiprocessor support
- Improved portability architecture
IRIX support policy
The following workstations, graphics and scalable server systems will transition to retired support mode after the IRIX 6.5.22 release in November 2003:
IRIX 6.5 Application Compatibility Mandate
For those providers asking about quarterly recertification of applications, please take a moment and become acquainted with the application compatibility protections offered by IRIX 6.5. This is a very powerful mandate that allows an application to be developed under IRIX 6.5.X and be run on any IRIX 6.5.Y, regardless of whether Y > X, Y == X, or Y < x.
The Mandate of Application Compatibility in SGI IRIX 6.5 is at URL: http://techpubs.sgi.com/library/tpl/cgi-bin/getdoc.cgi/0650/bks/SGI_Developer/books/mandate_IRIX/sgi_html/pr01.htmlCaveats to Read Before You Upgrade
Users are reminded to review the special "Caveats to Read Before You Upgrade" section of the online Welcome document. Visit the "Caveat and Release Note Updates" link at: http://support.sgi.com/irix/6.5 for any late-breaking information.Important note if you do live installs of the IRIX quarterly releases
Updated Inst program
IRIX 6.5.XX Lookahead
IRIX 6.5.23 is in development and is planned to release mid-February, 2004