Invention Grant
- Patent Title: Virtual incremental storage apparatus method and system
- Patent Title (中): 虚拟增量存储装置的方法和系统
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Application No.: US12123166Application Date: 2008-05-19
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Publication No.: US07809917B2Publication Date: 2010-10-05
- Inventor: David Alan Burton , Noel Simen Otterness
- Applicant: David Alan Burton , Noel Simen Otterness
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Kunzler Needham Massey & Thorpe
- Main IPC: G06F12/00
- IPC: G06F12/00

Abstract:
An apparatus for managing incremental storage includes a storage pool management module that allocates storage volumes to a virtual volume. Also included is an incremental log corresponding to the virtual volume, which maps virtual addresses to storage addresses. The apparatus may also include a replication module that sends replicated data to the virtual volume and a policy management module that determines allocation criteria for the storage pool management module. In one embodiment, the incremental log includes a lookup table that translates read and write requests to physical addresses on storage volumes within the virtual volume. The replicated data may include incremental snapshot data corresponding to one or more primary volumes. The various embodiments of the virtual incremental storage apparatus, method, and system facilitate dynamic adjustment of the storage capacity of the virtual volume to accommodate changing amounts of storage utilization.
Public/Granted literature
- US20080222376A1 VIRTUAL INCREMENTAL STORAGE APPARATUS METHOD AND SYSTEM Public/Granted day:2008-09-11
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