公开(公告)号：US10168937B2

公开(公告)日：2019-01-01

申请号：US15513081

申请日：2014-09-25

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Jin Wang ,  Roopesh Kumar Tamma ,  Siamak Nazari ,  Srinivasa D Murthy

IPC: G06F3/06

Abstract: Example implementations relate to storage space allocation. For example, an implementation includes an apparatus including a controller. The controller is to receive an allocation request from a host computing device. The controller is also to reserve a portion of storage space in the storage device via a reservation table based on the allocation request. The controller is further to determine a type of the allocation request. The type of the allocation request includes a space-optimized allocation request and a non-space-optimized allocation request. When the type of the allocation request corresponds to the non-space-optimized allocation request, the controller is to commit the portion of storage space via an allocation table. When the type of the allocation request corresponds to the space-optimized allocation request, the controller is to release the portion of storage space via the reservation table.

公开(公告)号：US20170300266A1

公开(公告)日：2017-10-19

申请号：US15514075

申请日：2014-09-25

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Jin Wang ,  Siamak Nazari ,  Roopesh Kumar Tamma ,  Srinivasa D Murthy

IPC: G06F3/06 ,  G06F17/30

CPC classification number: G06F3/0641 ,  G06F3/0608 ,  G06F3/0644 ,  G06F3/0673 ,  G06F11/08 ,  G06F11/14 ,  G06F11/1453 ,  G06F17/30156 ,  G06F17/30371 ,  G06F17/30377

Abstract: Example implementations relate to data chunk storage. For example, an implementation includes an apparatus that includes a processor. The processor is to receive a first data chunk from a source device and to generate a first fingerprint of the first data chunk. In response to a determination that the first fingerprint matches a second fingerprint of a second data chunk, the processor is to select a storage pool from a plurality of storage pools at a storage device to store the first data chunk based on the first data chunk and based on the second data chunk. The plurality of storage pools includes a first storage pool associated with first particular data chunks with non-colliding fingerprints and a second storage pool associated with second particular data chunks with colliding fingerprints.

公开(公告)号：US20160350175A1

公开(公告)日：2016-12-01

申请号：US15117670

申请日：2014-04-30

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Siamak Nazari ,  Jin Wang ,  Srinivasa D Murthy

IPC: G06F11/10 ,  G06F3/06

CPC classification number: G06F11/1004 ,  G06F3/0619 ,  G06F3/0641 ,  G06F3/0673

Abstract: In one example implementation according to aspects of the present disclosure, a method may include calculating, by a computing system, a cyclic redundancy check (CRC) value for a received data request. The method may further include translating, by the computing system, the CRC value into a physical page location using a three-level table walk. The method may also include detecting, by the computing system, whether the received data request represents duplicate data by comparing the received data request with a data stored at the physical page location.

Abstract translation: 在根据本公开的方面的一个示例实现中，方法可以包括由计算系统计算用于接收的数据请求的循环冗余校验（CRC）值。 该方法还可以包括通过计算系统将CRC值转换为使用三级表走路的物理页面位置。 该方法还可以包括通过将接收到的数据请求与存储在物理页面位置处的数据进行比较来检测计算系统接收到的数据请求是否表示重复数据。