公开(公告)号：WO2021216883A1

公开(公告)日：2021-10-28

申请号：PCT/US2021/028657

申请日：2021-04-22

Applicant: NETAPP, INC.

Inventor： PROULX, Alyssa ,  SUN, Wei

IPC: G06F12/02 ,  G06F12/0864 ,  G06F11/30

Abstract: A system, method, and machine-readable storage medium for performing garbage collection in a distributed storage system are provided. In some embodiments, an efficiency level of a garbage collection process is monitored. The garbage collection process may include removal of one or more data blocks of a set of data blocks that is referenced by a set of content identifiers. The set of slice services and the set of data blocks may reside in a cluster, and a set of filters may indicate whether the set of data blocks is in-use. At least one parameter of a filter of the set of filters may be adjusted (e.g., increased or reduced) if the efficiency level is below the efficiency threshold. Garbage collection may be performed on the set of data blocks in accordance with the set of filters.

公开(公告)号：WO2014179174A1

公开(公告)日：2014-11-06

申请号：PCT/US2014/035526

申请日：2014-04-25

Applicant: NETAPP, INC.

Inventor： SUN, Wei ,  HUMLICEK, Don ,  SEGURA, Theresa

IPC: G06F11/08

CPC classification number: G06F11/1076 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/0689 ,  G06F11/108 ,  G06F2211/1057 ,  G06F2211/1059

Abstract: Technology is disclosed for performing background initialization on protection information enabled storage volumes or drives. In some embodiments, a storage controller generates multiple I/O requests for stripe segments of each drive (e.g., disk) of multiple drives of a RAID-based system (e.g., RAID-based disk array). The I/O requests are then sorted for each of the drives according to a pre-determined arrangement and initiated in parallel to the disks while enforcing the pre-determined arrangement. Sorting and issuing the I/O requests in the manner described herein can, for example, reduce drive head movement resulting in faster storage subsystem initialization.

Abstract translation: 公开了用于在启用保护信息的存储卷或驱动器上执行后台初始化的技术。 在一些实施例中，存储控制器为基于RAID的系统（例如，基于RAID的磁盘阵列）的多个驱动器的每个驱动器（例如，磁盘）的条带分段生成多个I / O请求。 然后根据预定的布置对每个驱动器对I / O请求进行排序，并且在执行预定的布置的同时并行地发送到磁盘。 以本文所描述的方式排序和发布I / O请求可以例如减少驱动头移动，从而导致更快的存储子系统初始化。

公开(公告)号：EP2992427A1

公开(公告)日：2016-03-09

申请号：EP14791440.2

申请日：2014-04-25

Applicant: NetApp, Inc.

Inventor： SUN, Wei ,  HUMLICEK, Don ,  SEGURA, Theresa

IPC: G06F11/08

CPC classification number: G06F11/1076 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/0689 ,  G06F11/108 ,  G06F2211/1057 ,  G06F2211/1059

Abstract: Technology is disclosed for performing background initialization on protection information enabled storage volumes or drives. In some embodiments, a storage controller generates multiple I/O requests for stripe segments of each drive (e.g., disk) of multiple drives of a RAID-based system (e.g., RAID-based disk array). The I/O requests are then sorted for each of the drives according to a pre-determined arrangement and initiated in parallel to the disks while enforcing the pre-determined arrangement. Sorting and issuing the I/O requests in the manner described herein can, for example, reduce drive head movement resulting in faster storage subsystem initialization.