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.
Patent No.:
Date of Patent:
Mar. 23, 2010
Filed:
Jan. 08, 2008
James Leong, Hillsborough, CA (US);
Scott Schoenthal, San Ramon, CA (US);
Srinivasan Viswanathan, Fremont, CA (US);
Rajesh Sundaram, Mountain View, CA (US);
James Leong, Hillsborough, CA (US);
Scott Schoenthal, San Ramon, CA (US);
Srinivasan Viswanathan, Fremont, CA (US);
Rajesh Sundaram, Mountain View, CA (US);
NetApp, Inc., Sunnyvale, CA (US);
Abstract
A method for operating a data storage system is described. The method first constructs an I/O tree representing a logical configuration of storage devices coupled to the storage system, the I/O tree representing a flow of I/O operations to the storage devices. Elements of the I/O tree are represented by objects. A freeze condition is imposed on a selected object of the I/O tree in order to disable a portion of the storage devices serviced by the selected object. Configuration management operations are performed on the portion of the storage devices serviced by the selected object. The freeze condition is removed from the selected object in response to completion of the configuration management, in order to resume I/O operations to the portion of the storage devices serviced by the selected object.