Backing up MDB and LDF files
Administrators are often tempted to backup *.MDF and *.LDF files in MS SQL Server. SQL Server uses these files to store data and logs and
in many cases, moving these files from one machine to another machine restores the database as well.
Although, this approach works in many cases, it is NOT
a good idea to backup these files with an expectation that you
will be able to restore a database to the point of crash. This is because SQL Server, like many other databases, store a lot of information
in memory. This memory image is not flushed to the disk until a checkpoint
This is the reason, you hardly see an changes to the *.MDB or *.LDF files even after you modify
data in SQL Server. As a result, if you only backup *.MDB and *.LDF files, you will miss the information residing in memory.
A better approach to backup SQL Server, or any RDBMS for that matter, is to use the recommended backup strategy provided by the
vendor of your database. In case of MS SQL Server, this is using the
command. This commands creates a local copy of the
database to a *.BAK file, which can then be copied to a remote machine using Syncrify or any other backup tool.
When you are using Syncrify to backup, we recommend using the SQL Server Plugin
for Syncrify, which runs the
in the background, creates a *.BAK file and then moves that file to a remote machine.