Title:
ストレージシステム、コピー方法及び正側のストレージ装置
Document Type and Number:
Japanese Patent JP5317495
Kind Code:
B2
Abstract:
A storage system having a primary storage apparatus for storing data from a host computer in a primary logical volume, and a secondary storage apparatus connected to the primary storage apparatus, for providing a secondary logical volume for storing a copy of the data, the storage system comprising: a search unit for checking whether or not data exists in each primary slot area formed by partitioning a storage area in the primary logical volume into predetermined storage areas; a transmission unit for sending, if no data is held in the primary slot area, a notice indicating no data stored to the secondary storage apparatus; and a data write unit for writing, when the notice is received from the primary storage apparatus, zero data in the secondary slot area.
Inventors:
Makoto Exit
Hidenori Suzuki
Hidenori Suzuki
Application Number:
JP2008046724A
Publication Date:
October 16, 2013
Filing Date:
February 27, 2008
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G06F3/06
Domestic Patent References:
| JP2007257246A | ||||
| JP2007115221A |
Attorney, Agent or Firm:
Shinji Oga