On Tue, 31 Oct 2006 14:04:11 -0500, Knutson, Sam <[EMAIL PROTECTED]> wrote:
>The combination of the relief provided by z9 & z/OS R7 to use the second >subchannel set and now HyperPAV has delivered some serious relief for >the 64K device limitation. Kudo's to the wizards in IBM! > >------------------------------------------------------------------------ > >IBM System Storage DS8000 series (machine type 2107) delivers HyperPAV > >http://www.ibm.com/common/ssi/rep_ca/1/897/ENUS106-811/ENUS106-811.PDF > >Parallel Access Volumes (PAV) enables a single System z server to >simultaneously process multiple I/O >operations to the same logical volume, which can help to significantly >reduce device queue delays. This is >achieved by defining multiple addresses per volume. Dynamic PAV allows >the assignment of addresses to >volumes and can be automatically managed to help meet performance >objectives and reduce overall queuing. >Today's announcement allows many DS8000 series users to benefit from >enhancements to PAV with support for >HyperPAV. HyperPAV allows an alias address to be used to access any base >on the same control unit image per I/O >base. This capability also allows different HyperPAV hosts to use one >alias to access different bases, which >reduces the number of alias addresses required to support a set of bases >in a System z environment with no >latency in targeting an alias to a base. This functionality is also >designed to enable applications to achieve equal >or better performance than possible with the original PAV feature alone >while also using the same or fewer z/OS >resources. > >HyperPAV is an optional feature on the DS8000 series. > >------------------------------------------------------------------------ > > Best Regards, > > Sam Knutson, GEICO Does anyone know if EMC has duplicated this technology? TIA, Patrick Lyon ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
