DATABASE SNAPSHOTS

摘要

Techniques herein are for creating a database snapshot by creating a sparse database. A method involves receiving a creation request to create a sparse database. The creation request has an identity of a parent database. The creation request is processed to create a sparse database. The sparse database has the identity of the parent database. The sparse database does not contain data copied from the parent database. A write request to write data into the sparse database is received. The write request is processed by writing the data into the sparse database. The parent database does not receive the data.

主权项

1. A method comprising:
receiving a creation request to create a sparse database, wherein the creation request comprises an identity of a parent database; processing the creation request to create a sparse database, wherein the sparse database does not contain data copied from the parent database, wherein the sparse database comprises one or more sparse files; receiving a write request to write data into the sparse database; processing the write request by writing the data into the one or more sparse files of the sparse database, wherein the parent database does not receive the data.