Pure Storage, Inc.

John Roper

John Colgrove

Andrew R Bernat

Peter E Kirkpatrick

Gordon James Coleman

Alan Stuart Driscoll

Wei Tang

Emanuel G Noik

Nitin Nagpal

Steven P Hodgson

Hari Kannan

Nenad Miladinovic

Matthew D Fleming

Eric Mueller

John Boyle

Eric Michael Verwillow

A command to relocate data from a first set of data blocks at the plurality of storage devices to a second set of data blocks while bypassing the storage controller is transmitted by the storage controller. The command includes address information associated with the second set of blocks to store the relocated data.

Optimized read request processing for relocated data

A method of tracking flash memory in a storage system is provided. The method includes initializing a bad blocks threshold value and marking one or more planes or logical unit numbers (LUNs) of flash memory as bad, responsive to determining that bad blocks in the one or more planes or LUNs meet the bad blocks threshold value. The method includes adjusting the bad blocks threshold value, responsive to exceeding a threshold number or rate of retiring planes or LUNs of flash memory, and repeating the marking and the adjusting, with the bad blocks threshold value capped at a maximum threshold value.

Adaptive threshold for bad flash memory blocks

Dynamically managing protection groups, including: identifying a protection group of storage resources, the protection group associated with a protection group management schedule that identifies one or more protection group management operations to be performed; detecting a membership change in the protection group; and updating, in dependence upon the change in the protection group, the protection group management schedule.

Dynamically managing protection groups

A command to relocate data is transmitted by a storage controller. The command includes first address information associated with a first set of blocks storing the data at one or more storage devices using a first programming mode and second address information associated with a second set of blocks at the one or more storage devices to store the relocated data using a second programming mode. The command causes the relocation of the data from the first set of blocks to the second set of blocks while bypassing sending the data to the storage controller. An acknowledgement is received that the relocated data has been stored at the second number of blocks.

Relocation of data for heterogeneous storage systems

Efficient relocation of data utilizing different programming modes

Consistent application of protection group management policies across multiple storage systems

Dynamic data protection within a flash storage system

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Mountain View, CA, United States of America

John Roper