The snapmirror.conf file is used to specify the details related to the copying of data, by using SnapMirror, from the source to the destination. This file resides on the destination storage system.
The /etc/snapmirror.conf file defines:
The relationship between the source and the destination.
The schedule used by the destination to copy data.
The arguments that control SnapMirror when copying data.
Distribution of the snapmirror.conf file
You can create a single snapmirror.conf file for your site and copy it to all the storage systems that use SnapMirror. The snapmirror.conf file can contain entries pertaining to other storage systems.
Limit on entries in the snapmirror.conf file
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.
Editing the snapmirror.conf file
You should edit the snapmirror.conf file only when there are no active SnapMirror transfers for the source and destination relationships that you want to change. If SnapMirror is enabled, changes take effect within two minutes. If SnapMirror is not enabled, changes take effect immediately after you enable SnapMirror.
Syntax for snapmirror.conf file entries
You need to use the correct syntax for each entry in the snapmirror.conf file, to specify the source, the destination, the options, and the schedule for a SnapMirror relationship.