The database backup sources can be upgraded to Bullseye + MariaDB 10.4
This is not a blocker for upgrading the rest of hosts (including the master) on a section, given that the MariaDB version doesn't change.
backup sources:
- db1102
- db1116
- db1139
- db1140
- db1145
- db1150
- db1171
- db2097
- db2098
- db2099
- db2100
- db2101
- db2139
- db2141
mediabackupstemp and backup tests:
- db1176
- db2151
- db1133
- db2102
Adding the database provisioning hosts, which has to be coordinated with the above and technically also have a mariadb package (even if no mariadb server is -normally- running there) to run xtrabackup:
- dbprov1001
- dbprov1002
- dbprov1003
- dbprov2001
- dbprov2002
- dbprov2003