n is a string with a maximum length of 32 characters.
SystemName is the name for the failover member you are configuring on this instance. This defaults to a combination of the system host name and the InterSystems IRIS® data platform instance name.
Mirror member names are converted to uppercase before storing. They cannot contain spaces, tabs, or the any of following characters
: [ ] # ; / * = ^ ~ ,
Changing This Parameter
On any of the Create a Mirror, Join as Failover, or Join as Async pages of the Management Portal (System Administration > Configuration > Mirror Settings), enter the Mirror Member Name.
Instead of using the Management Portal, you can change SystemName in the Config.MirrorMember class (as described in the class reference) or by editing the CPF in a text editor (as described in the Editing the Active CPF section of the “Introduction to the Configuration Parameter File” chapter in this book).