Silvio's Corner - 400 Bad Request
Silvio's Corner - 400 Bad Request
Silvio's Corner - 400 Bad Request
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HyperPAV Introduction<br />
Zürich | 26. Oktober 2004<br />
HyperPAV Functionality and Performance<br />
HyperPAV is a new feature of Parallel Access Volumes (PAV) that reduces the<br />
number of PAV-aliases needed per logical subsystem (LSS)<br />
Announced in October of 2006 for z/OS 1.6+<br />
Benefits of HyperPAV<br />
Increased agility of the management algorithms allows HyperPAVs to instantaneously address<br />
critical workloads like market open<br />
Substantially reduce the number of aliases per LSS required to meet workload I/O response<br />
time objectives<br />
– This is accomplished by no longer statically binding PAV-aliases to PAV-bases and adjusting<br />
the bindings via the Workload Manager<br />
– Instead, in HyperPAV mode, PAV-aliases are bound to PAV-bases only for the duration of<br />
a single I/O operation<br />
Facilitate the exploitation of larger logical volume sizes<br />
– 3390-27 and 3390-54 logical volume images with 32K and 64K cylinders<br />
Silvio Sasso's <strong>Corner</strong>, GSE z/OS<br />
Expertforum IBM System CH #66, z9 27.-28.3.2007,<br />
– The Enterprise Hub<br />
© 2004 IBM Corporation 32
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