You should know what the maximum number of Snapshot copies you can accumulate is to minimize the possibility that you do not have Snapshot copies available when you need them.
Over time, automatically generated hourly, weekly, and monthly Snapshot copies accrue. Having a number of Snapshot copies available gives you a greater degree of accuracy if you have to restore a file.
The number of Snapshot copies can approach the maximum if you do not remove older Snapshot copies. You can configure Data ONTAP to automatically delete older Snapshot copies of volumes as the number of Snapshot copies approaches the maximum.
The following data protection mirror copies affect the maximum number of Snapshot copies available to a volume:
Each namespace mirror constituent uses two Snapshot copies. By default, a read/write Infinite Volume contains one namespace mirror constituent. If you enable SnapDiff on an Infinite Volume, each additional namespace mirror uses two Snapshot copies.
An Infinite Volume also uses up to four Snapshot copies when technical support runs some commands that require diagnostic privilege. You must keep the number of Snapshot copies far enough below the limit to ensure that technical support can run commands.