# `Warm` Backups

+ Occurs when data is accessed
+ Benefit from not having to completely lock down the end user
+ This can cause performance issues because you cannot modify the data during a backup

---------------------------------------------------------------------------------------
Occurs when data is accessed. In most cases, data cannot be modify during a backup.

Benefit from not having to completely lock down the end user. However, the disadvantage of not being able to modify the data set when backing up makes this type of backup unsuitable for some applications.

This can cause performance issues because applications need to wait for warm backup to finish, which can take a long time.