Tracking utilization of data blocks in a storage system
US11675789B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2021 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Oct 27, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/278
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage control system manages a utilization of data blocks of a storage volume which is partitioned into data blocks having a unique block identifier (ID) and a same block size. The storage control system receives data items and assigns a respective unique data ID to each data item, which include consecutive data IDs. The data items are written to a free data block as a whole, and a record for the written data block is inserted into a node of a first tree structure. The record includes the unique block ID of the written data block, a first data ID of the data items, and a bitmap which maps the consecutive data IDs of the data items in the written data block, starting from the first data ID, to a respective bit whose value indicates whether the data item associated with the data ID is valid or invalid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.