Title:
MAINFRAME STORAGE APPARATUS THAT UTILIZES THIN PROVISIONING
Document Type and Number:
WIPO Patent Application WO/2011/135618
Kind Code:
A1
Abstract:
Each actual page inside a pool is configured from a plurality of actual tracks, and each virtual page inside a virtual volume is configured from a plurality of virtual tracks. A storage control apparatus of a mainframe system has management information that includes information denoting a track in which there exists a user record, which is a record including user data (the data used by a host apparatus of a mainframe system). Based on the management information, a controller identifies an actual page that is configured only from tracks that do not comprise the user record, and cancels the allocation of the identified actual page to the virtual page.
Inventors:
MURATA KAZUHIRO (JP)
TAKEUCHI HISAHARU (JP)
MUTO JUNICHI (JP)
MORI AKIHIRO (JP)
JINDO KAZUE (JP)
TAKEUCHI HISAHARU (JP)
MUTO JUNICHI (JP)
MORI AKIHIRO (JP)
JINDO KAZUE (JP)
Application Number:
PCT/JP2010/003023
Publication Date:
November 03, 2011
Filing Date:
April 27, 2010
Export Citation:
Assignee:
HITACHI LTD (JP)
MURATA KAZUHIRO (JP)
TAKEUCHI HISAHARU (JP)
MUTO JUNICHI (JP)
MORI AKIHIRO (JP)
JINDO KAZUE (JP)
MURATA KAZUHIRO (JP)
TAKEUCHI HISAHARU (JP)
MUTO JUNICHI (JP)
MORI AKIHIRO (JP)
JINDO KAZUE (JP)
International Classes:
G06F3/06
Foreign References:
| EP1970831A2 | 2008-09-17 | |||
| EP1936488A2 | 2008-06-25 | |||
| US20090144732A1 | 2009-06-04 |
Attorney, Agent or Firm:
WILLFORT INTERNATIONAL (3 Kanda-Ogawamachi 3-chome, Chiyoda-k, Tokyo 52, JP)
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Claims:
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