Inventors:
Charles Christopher Bailey - Cary NC, US
Miles Aram de Forest - Bahama NC, US
David Haase - Fuquay Varina NC, US
Saurabh M. Pathak - Jersey City NJ, US
Chetan Rameshchandra Vaidya - Morrisville NC, US
Paul T. McGrath - Raleigh NC, US
Assignee:
EMC Corporation - Hopkinton MA
International Classification:
G06F 11/00
Abstract:
Systems, methods, and computer readable media for tracking storage pool reservations are disclosed. According to one aspect, the subject matter described herein includes a system for tracking storage pool reservations. The system includes a storage entity having data storage space for storing data, the data storage space being divided into a plurality of slices. The system also includes one or more portions of non-volatile memory, different from the data storage space, for storing slice reservation statistics and information about requests that affect slice reservation statistics, wherein storing information in the portion of non-volatile memory is an atomic operation. The system further includes a control module for receiving a request that affect slice reservation statistics, storing information about the request in the portion of non-volatile memory, performing the request, and updating the slice reservation statistics and clearing the information about the request in the portion of non-volatile memory.