公开(公告)号：US20240012584A1

公开(公告)日：2024-01-11

申请号：US18173696

申请日：2023-02-23

Applicant: NUTANIX, INC.

Inventor： Amod Vilas JALTADE ,  John CHAU ,  Praveen Kumar PADIA ,  Radenko PAVLOVIC ,  Vinayak Hindurao KHOT

IPC: G06F3/06

CPC classification number: G06F3/0667 ,  G06F3/061 ,  G06F3/0647 ,  G06F3/067

Abstract: Various embodiments set forth techniques for managing metadata for a vblock include dynamically normalizing and denormalizing vblock metadata associated with an extent. Vblock metadata associated with an extent is normalized when the extent is migrated to a different extent group by having the vblock metadata to a mapping between the extent identifier and an extent group identifier in a metadata map separate from the vblock metadata. Vblock metadata associated with an extent is denormalized whenever the number of vblock metadata associated with an extent drops below a threshold. Vblock metadata is denormalized by updating the vblock metadata to include a mapping to an extent group, based on a mapping of the extent to the extent group in a separate metadata map, and then removing the mapping in the separate metadata map.