MIRRORS <YES | NO>
Turns off all mirroring when set to NO. YES implies ordinary operation in which the filename determines whether or not file mirroring is in effect on a file-by-file basis. NO implies all mirror requests are ignored (including log files, administrative files, and all user mirrors). Set MIRRORS to NO only if there are strictly no plans to ever use file mirroring or during catastrophe recovery situations where the mirrored files may not be available due to a hardware problem. The absence of this keyword implies file mirrors are supported.
Logging of the message Following file is opened without mirror... to CTSTATUS.FCS is suppressed when the configuration file specifies MIRRORS NO, which disables the use of mirrors.