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Srinivasa Rao
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Joined: 21 Jun 2005
Posts: 75
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Hi,
What does page datasets in SMS means and purpose of these datasets? I tried searching but ended up with nothing.
Could any one suggest me where I can gather information regarding this.
Thanks in advance |
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expat
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Joined: 14 Mar 2007
Posts: 8797
Location: Welsh Wales
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| PAGE datasets are part of the z/OS operating system. |
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Srinivasa Rao
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Joined: 21 Jun 2005
Posts: 75
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| Thats correct But looking for some more information. |
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CICS Guy
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Joined: 18 Jul 2007
Posts: 2146
Location: At my coffee table
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| IIRC, page datasets host the virtual storage when it's not occupying the physical memory |
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Bill Dennis
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Joined: 17 Aug 2007
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Location: Iowa, USA
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Bill Dennis
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Joined: 17 Aug 2007
Posts: 562
Location: Iowa, USA
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ANother possibility may be a reference to LINEAR VSAM or PDSE which store data in 4K blocks or "pages". The MVS architecture has the capability to move 4K blocks of storage easily, so these new dataset structures have adopted the page-sized data block.
The system PAGE datasets mentioned in the prior post also contain swapped out storage in 4K blocks. |
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enrico-sorichetti
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Joined: 14 Mar 2007
Posts: 10873
Location: italy
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page datasets are not, in principle, related to SMS
page dataset are essential components of all the Virtual storage operating systems
they are part of the paging architecture of the system
and are used to hold the virtual storage pages which, according to the paging algorithm, do not reside in real storage |
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