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:
May. 19, 2020
Filed:
Jan. 03, 2017
International Business Machines Corporation, Armonk, NY (US);
Deepavali M. Bhagwat, Cupertino, CA (US);
Marc Eshel, Morgan Hill, CA (US);
Dean Hildebrand, Bellingham, WA (US);
Manoj P. Naik, San Jose, CA (US);
Wayne A. Sawdon, San Jose, CA (US);
Frank B. Schmuck, Campbell, CA (US);
Renu Tewari, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
One embodiment provides a method for re-balancing data and metadata across multiple sub-file systems of a file system. The method includes determining sub-file systems including an amount of data that exceeds a threshold. At least one cell in the sub-file systems is identified as a candidate for re-balancing. A re-balance process is performed on the at least one cell that includes performing a flush operation to flush dirty data from file system buffers, copying an inode table for an independent set of files in the at least one cell to a destination sub-file system, notifying an allocation manager for the destination sub-file system of a new storage pool to manage, and performing an un-quiesce operation on I/O operations to each element in the at least one cell.