HP-UX

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HP-UX (Hewlett Packard UniX) is Hewlett-Packard's proprietary implementation of the Unix operating system, based on System V (initially System III). It runs on the HP 9000 PA-RISC-based range of processors and HP Integrity systems that are based on Intel's Itanium-processors. HP-UX was also available for later Apollo/Domain systems, and earlier versions ran on the HP 9000 Series 200, 300, and 400 computer systems based on the Motorola 68000 series of processors, as well as the HP 9000 Series 500 computers based on HP's proprietary FOCUS processor architecture.

HP-UX was the first Unix to offer access control lists for file access permissions as an alternative to the standard Unix permissions system. HP-UX was also among the first Unix systems to include a built-in logical volume manager. HP has had a long partnership with Veritas Software, and integrates VxFS as the primary file system. HP-UX 11i is currently credited with leadership in integrated mission-critical virtualization[1] , observed performance, high availability and manageability.[2]

The current shipping release is HP-UX 11i v3 (11.31) with the September 2010 update release (the 7th update for HP-UX 11i v3[3]). HP-UX 11i v3 now ships on the industry's only 8-socket UNIX blade system.[4]

Contents

Characteristics

Since about 2000 the focus of HP-UX has increasingly been on enhanced reliability, security, workload management, and partitioning. The reliability is provided through single-system quality and self-healing, and in multi-system installations, clustering technology and application failover on a system outage, as well as error monitoring and correction. HP-UX 11i offers a common root disk for its clustered file system. HP Serviceguard is the cluster solution for HP-UX. HP Global Workload Management adjusts workloads to optimize performance, and integrates with Instant Capacity on Demand so installed resources can be paid for in 30-minute increments as needed for peak workload demands.

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