# Warm Backup

__*Warm backup*__

+ 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.
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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 you cannot modify the data during a backup.
  It can take a long time to update users.