MySQL Enterprise Backup User's Guide (Version 8.0.37)
Inside the image backup file created by the
backup-to-image command of
mysqlbackup are some new files that are
produced during the backup process. These files are used to
control later tasks such as verifying and restoring the backup
data. The files generated during the backup process include:
meta/backup_create.xml: Lists the
command line arguments and environment in which the backup
was created.
meta/backup_content.xml: Essential
metadata for the files and database definitions of the
backup data.
backup-my.cnf: Records the crucial
configuration parameters that apply to the backup. These
configuration parameters are read by
mysqlbackup during operations like
apply-log to determine how the
backup data is structured. These parameters are also
checked during a restore operation for their compatibility
with your target server's configuration.
server-my.cnf: Contains values of the
backed-up server's global variables that are set to
non-default values.
server-all.cnf: Contains values of
all the global variables of the backed-up server.
*.bkt: Transfer file created for an
encrypted InnoDB table during backup. It contains the
reencrypted tablespace key and other information related
to the encryption. See
Chapter 6, Working with Encrypted InnoDB Tablespaces for detail.
For details about these are other files contained in the backup, see Table 1.1, “Types of Files in a Backup”.