The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 07, 2017

Filed:

Nov. 12, 2013
Applicant:

Netapp, Inc., Sunnyvale, CA (US);

Inventors:

Douglas Wayne Coatney, Sunnyvale, CA (US);

Radek Aster, Campbell, CA (US);

Assignee:

NETAPP, INC., Sunnyvale, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/02 (2006.01); G06F 3/06 (2006.01); G06F 11/10 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0223 (2013.01); G06F 3/0605 (2013.01); G06F 3/0632 (2013.01); G06F 3/0689 (2013.01); G06F 11/1092 (2013.01);
Abstract

A computer storage system includes multiple disk trays, each disk tray holding two or more physical disks. The disks on a single tray are virtualized into a single logical disk. The single logical disk reports to the RAID (redundant array of inexpensive disks) subsystem, creating the impression that there is one large capacity disk. In one implementation, each disk in the tray is allocated to a different RAID group. By allocating the disks in a tray to different RAID groups, if the tray is removed, only a portion of several different RAID groups are removed. This arrangement permits a simple reconstruction of the RAID groups if a disk tray is removed from the system.


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