Amazon Technologies, Inc.

Masataka Kubo

Bryan James Donlan

James Caleb Kirschner

Darin Lee Frink

Peter George Ross

Colin Laird Lazier

Paul David Franklin

Kevin M Bailey

Mary Crys Calansingin

A data center may include a tape library rack module along with rack computer systems. The rack computer systems may be configured to provide computing capacity within a data center environment. In some embodiments, the tape library rack module may include an enclosure encompassing an interior of the tape library rack module, a rack within the interior, and a tape library unit mounted on the rack. The tape library rack unit may include tape cartridges configured to store data within a tape environment that is different than the data center environment. The tape library rack unit may be within a portion of the interior that is enclosed such that it is environmentally isolated from the data center environment. In some examples, the tape library rack module may include a cooling unit and/or a humidifier unit, which may provide the tape environment to the environmentally isolated portion of the interior of the tape library rack module.

Tape library rack module with environmentally isolated interior

Techniques for storing incremental backups in long-term storage are described herein. A backup data set is generated from a set of data to backup and a deletion time for that backup data set is determined. A scheduled time period to perform the backup is selected based at least in part on a requested time period to perform the backup. The requested time period is altered if the performing the backup at the requested time period would produce a period of high resource contention at the destination for the backup. The backup is then stored at the destination at the scheduled time.

Incremental backups for removable media

Techniques for producing incremental short-term backups while minimizing media access are described herein. A backup request is received that specifies data to backup and a schedule for that backup. The data is then partitioned based on the schedule and, for each of the partitions, it is determined whether to store a full or incremental backup of that partition. Each partition is fully backed up once during a cycle of backups and incrementally backed up at other times. With each full backup of a partition, a reverse delta that can be used to reconstruct the previous full backup for that partition is stored with the full backup.

Incremental backups while minimizing media access

Growing community of inventors

Seattle, WA, United States of America

Masataka Kubo