The limit on the number of entries for each system in the /etc/snapmirror.conf file is 1,024. Entries beyond this limit are ignored and the system console displays a warning message.
If you have an HA pair, the limit on the number of entries is shared between the two systems in the HA pair. For example, in an HA pair, if one system uses 480 entries, the other system has 544 entries available for its use.