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. 14, 2017

Filed:

May. 11, 2015
Applicant:

Hewlett Packard Enterprise Development Lp, Houston, TX (US);

Inventors:

Siamak Nazari, Fremont, CA (US);

Jin Wang, Fremont, CA (US);

Srinivasa D Murthy, Fremont, CA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 3/06 (2006.01); G06F 11/20 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0631 (2013.01); G06F 3/0608 (2013.01); G06F 3/0665 (2013.01); G06F 3/0685 (2013.01); G06F 11/2071 (2013.01); G06F 11/2074 (2013.01); G06F 11/2076 (2013.01); G06F 11/2079 (2013.01);
Abstract

In example implementations, unreferenced memory addresses in a segment of a storage volume may be identified. Access to the segment of the storage volume may be controlled by one of a plurality of storage volume controllers (SVCs). The plurality of SVCs may control access to respective segments of the storage volume. Indicators of the identified unreferenced memory addresses may be stored in a volatile memory in the one of the plurality of SVCs. In response to an input/output (I/O) command from a host, data may be written to one of the identified unreferenced memory addresses corresponding to one of the indicators stored in the volatile memory. After the data has been written, the one of the indicators may be deleted from the volatile memory. The one of the identified unreferenced memory addresses may not have been made available to other SVCs after being identified.


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