Most of the information posted in this answer was copied from the above mentioned article and has been copied here, to ensure the availability of the information provided in Microsoft's article.A Master Database is highly important for an SQL server, as it holds the primary configuration details of the SQL server. Protect all of your system databases at all costs with a regular FULL database backup. IMO msdb is one of the most underrated databases on a SQL Server instance. This is because all of the above mentioned tasks log their respective actions and outcomes in the various msdb tables. This happens whenever a backup or restore is performed, when jobs are executed or fail, mails are sent, etc. msdb also contains history tables such as the backup and restore history tables. The database used by SQL Server Agent for scheduling alerts and jobs, and for recording operators. modelīack up model only when necessary for your business needs for example, immediately after customizing its database options. To achieve this look at the DBTools.IO or Transfer logins and passwords between instances of SQL Server (Microsoft | SQL Docs) or as Hannah pointed out in the comment. It is not intended to be able to restore the master databse to a different server to "migrate logins". If you lose the master database, you lose the ability to start the instance. Therefore, SQL Server cannot start if the master database is unavailable. Also, master is the database that records the existence of all other databases and the location of those database files and records the initialization information for SQL Server.
In SQL Server, system objects are no longer stored in the master database instead, they are stored in the Resource database. This includes instance-wide metadata such as logon accounts, endpoints, linked servers, and system configuration settings. The master database records all the system-level information for a SQL Server system. and then this bit of information from master Database (Microsoft | SQL Docs) We recommend a regular backup schedule, which you can supplement with an additional backup after a substantial update. The database that records all of the system level information for a SQL Server system.īack up master as often as necessary to protect the data sufficiently for your business needs.
The best reason are the Microsoft recommendations from Backup & restore: system databases (SQL Server) (Microsoft | SQL Docs) master
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