Tracking files excluded from backup

摘要

Techniques to exclude files from backup are disclosed. In various embodiments, a database that includes an exclude set table configured to store data associated with one or more files identified to be excluded from backup is accessed. Data retrieved from the database is used to exclude one or more of said one or more files from a backup. In some embodiments, files are excluded from the backup at least in part by deleting the files from a shadow copy volume created in connection with said backup.

主权项

1. A method of excluding files from backup, comprising:
accessing, by one or more processors, a database that includes an exclude set table that stores data associated with one or more files identified to be excluded from backup in connection with an incremental backup, wherein the database is accessed in connection with performing an incremental backup at least in part by retrieving from the database an identification of one or more files excluded from a previous backup; and using, by the one or more processors, at least the identification of one or more files excluded from the previous backup retrieved from the database to exclude one or more of the one or more files from the incremental backup, wherein the using of the data retrieved from the database to exclude one or more of the one or more files comprises:
ensuring that data blocks associated with the one or more files excluded from the previous backup are excluded from the incremental backup; andaborting the incremental backup and performing instead a full backup based at least in part on a determination that one or more of the one or more files excluded from the previous backup could not be excluded from the incremental backup.