Continued Sustaining Engineering support for Tru64 UNIX versions after their published end-of-support dates

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	Tru64 UNIX V5.1B-5 continues to deliver stability, quality, and dependability to Tru64 UNIX AlphaServer customers

	Now that Standard Support for Tru64 UNIX V5.1B-3/PK5 (BL26) has ended following the release of new Tru64 UNIX V5.1B-5/PK7 (BL28), Tru64 UNIX Extended Engineering Support (EES) will be available for this version. Tru64 UNIX Extended Engineering Support (EES) provides full remedial support including elevation to Tru64 UNIX Engineering for problem resolution and new fixes. For customers still running Tru64 UNIX V4.0F, V4.0G, and/or V5.1A. Tru64 UNIX Extended Engineering Support (EES) is also available for these versions. Since it is critical to ensure a Tru64 UNIX Extended Engineering Support (EES) contract is in place before problems arise, customers requiring continued Sustaining Engineering Support on Tru64 UNIX versions after their end of support dates should contact their HP Representative to discuss under what terms and conditions such support may be purchased. HP encourages customers to stay current with the latest Tru64 UNIX versions and HP products. HP suggests customers install the latest versions as a proactive measure to address known issues. Tru64 UNIX Extended Engineering Support (EES) is available for sites that require engineering support but are unable to upgrade to the current supported versions.

	Tru64 UNIX V5.1B-5

»	Release notes
»	TruCluster Server
»	Associated products
»	Roadmap
»	Binary compatibility statement (pdf)
»	Internet Express
»	Information Library

Product	Functionality with enhanced robustness	Your payback from upgrading
Operating system	Standards conformance, AdvFS, collect utility, new kernel tunable parameters, updated versions of BIND and sendmail.	Portability, performance, added protection against unwanted downtime, increased capability.
TruCluster Server software	Improve the performance of an application that uses ICSNET driver to communicate over cluster interconnect.	Better performance for applications which use ICSNET on cluster.
Operating System : storage	Increased the maximum LUN size supported by the Tru64 UNIX CAM subsystem from 1TB to 2TB.	Increased LUN size to match the storage capabilities.

Tru64 UNIX continues to provide a stable, dependable platform for those customers who choose to stay on AlphaServer platforms.

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