Patent · US Active

Managing TLU recovery using pre-allocated LUN slices

US8959388B1 · kind B1 · utility

169Cited by

4References

20Claims

0Family size

Assignee

EMC Corporation · US

Inventors

Yaming Kuang · Shanghai, CN
Dennis Duprey · Raleigh, US
Samuel L. Mullis, II · Raleigh, US
Changxin Liu · Beijing, CN

Key dates

Filing date	Dec 28, 2012
Grant date	Feb 17, 2015
Priority date	—
Expiry date	Jul 3, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06F11/0727
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A technique of managing thin pool logical unit (TLU) recovery is performed in a data storage array that forms TLUs from a slice storage pool of logical unit (LUN) slices. The technique involves allocating a set of LUN slices of the slice storage pool to support TLU recovery. The technique further involves, after the set of LUN slices has been allocated, taking offline a TLU which currently requires TLU recovery. The technique further involves, while the TLU is offline, performing a TLU recovery procedure to recover the TLU. The TLU recovery procedure utilizes the set of LUN slices that was allocated to support TLU recovery.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.