Invention Grant
- Patent Title: Virtual disk drive system and method
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Application No.: US14047152Application Date: 2013-10-07
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Publication No.: US09021295B2Publication Date: 2015-04-28
- Inventor: Philip E. Soran , John P. Guider , Lawrence E. Aszmann , Michael J. Klemm
- Applicant: Compellent Technologies
- Applicant Address: US MN Eden Prairie
- Assignee: Compellent Technologies
- Current Assignee: Compellent Technologies
- Current Assignee Address: US MN Eden Prairie
- Agency: Winthrop & Weinstine, P.A.
- Main IPC: G06F12/02
- IPC: G06F12/02 ; G06F11/10 ; G06F3/06 ; G06F11/14 ; G06F11/20

Abstract:
A disk drive system and method capable of dynamically allocating data is provided. The disk drive system may include a RAID subsystem having a pool of storage, for example a page pool of storage that maintains a free list of RAIDs, or a matrix of disk storage blocks that maintain a null list of RAIDs, and a disk manager having at least one disk storage system controller. The RAID subsystem and disk manager dynamically allocate data across the pool of storage and a plurality of disk drives based on RAID-to-disk mapping. The RAID subsystem and disk manager determine whether additional disk drives are required, and a notification is sent if the additional disk drives are required. Dynamic data allocation and data progression allow a user to acquire a disk drive later in time when it is needed. Dynamic data allocation also allows efficient data storage of snapshots/point-in-time copies of virtual volume pool of storage, instant data replay and data instant fusion for data backup, recovery etc., remote data storage, and data progression, etc.
Public/Granted literature
- US20140040546A1 VIRTUAL DISK DRIVE SYSTEM AND METHOD Public/Granted day:2014-02-06
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