Introduction to the HP Virtual Server Environment

Figure 4. HP Integrity Virtual Machines
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HP-UX 11i Linux
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Windows
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HP-UX 11i
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Secure Resource Partitions
Secure Resource Partitions is a set of technologies that allow you to run multiple separate instances of
applications within a single instance of HP-UX while maintaining resource and security isolation
between the instances. Some of these technologies have existed in HP-UX for over 10 years. The
capabilities of this combination, in conjunction with the Process Resource Manager product (PRM),
Workload Manager (WLM), or Global Workload Manager (gWLM), is usually referred to as
“application stacking.”
The underlying technologies include:
• Fair Share Scheduler – for sub-CPU granularity CPU control
• Processor sets – for whole-CPU granularity CPU control
• Memory Resource Groups – for control of real and shared memory
• LVM and VxVM – for control of disk I/O bandwidth within each volume group
• Security Compartments – for security isolation between groups of processes
• PRM Application Manager – to manage how processes are assigned to groups for each of
the technologies listed here
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