Mirroring duplicates FairCom DB data between two specified volumes as a legacy backup strategy. These options control various aspects of mirroring for multiple types of c-tree files.
ADMIN_MIRROR
ADMIN_MIRROR <mirror_path\FAIRCOM.FCS>
Sets the location where FAIRCOM.FCS is mirrored.
Permits FAIRCOM.FCS to be mirrored. For example, where mirror_path is the path to the secondary storage location for FAIRCOM.FCS.
This configuration option can include an environment variable name that will be substituted with its value when the configuration file is read.
Default: No log mirror
LOG_EVEN_MIRROR
LOG_EVEN_MIRROR <full_path>L
The alternative name for even numbered secondary transaction log files. This keyword allows the even numbered secondary transaction log files to be mirrored to a location other than the primary transaction log files. This name must be in the form of an optional directory path and the single character ‘L’ (e.g., E:\LOG2EVEN\L). The transaction management logic automatically appends a seven-digit even number and the extension .FCS to the path provided.
This configuration option can include an environment variable name that will be substituted with its value when the configuration file is read.
Default: No log mirrors
See Also
LOG_ODD_MIRROR
LOG_ODD_MIRROR <full_path>L
The alternative name for odd numbered secondary transaction log files. This keyword allows the odd numbered secondary transaction log files to be mirrored to a different location than the primary transaction log files. This name must be in the form of an optional directory path and the single character ‘L’ (e.g., F:\LOG2ODD\L). The transaction management logic automatically appends a seven-digit even number and the extension .FCS to the path provided.
This configuration option can include an environment variable name that will be substituted with its value when the configuration file is read.
Default: No log mirrors
See Also
MIRROR_DIRECTORY
MIRROR_DIRECTORY <directory name>
Permits mirrored files WITHOUT AN ABSOLUTE PATH NAME to be placed in a specified mirror directory. This is analogous to LOCAL_DIRECTORY except that it only applies to the mirror in a primary|mirror pair.
This configuration option can include an environment variable name that will be substituted with its value when the configuration file is read.
Default: Server directory or LOCAL_DIRECTORY
See Also
MIRRORS
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.
Default: YES
See Also
SKIP_MISSING_LOG_MIRRORS
SKIP_MISSING_LOG_MIRRORS <YES | NO>
Accepts a YES/NO argument. With an argument of YES, the FairCom DB Server does NOT terminate automatic recovery if it cannot find a log mirror to be recovered along with the primary file.
Default: NO
See Also
SKIP_MISSING_MIRRORS
SKIP_MISSING_MIRRORS <YES | NO>
Accepts a YES/NO argument. With an argument of YES, the FairCom DB Server does NOT terminate automatic recovery if it cannot find a mirror to be recovered along with the primary file.
Default: NO
See Also
START_EVEN_MIRROR
START_EVEN_MIRRORS <full_path>S
The alternative name for even numbered secondary start file. The start file contains the location at which the automatic recovery routines begin to scan the transaction logs. There are two start files (numbered zero and one) to reduce the risk of losing the starting point for automatic recovery. This name must be in the form of a directory path and the single character ‘S’ (e.g., C:\START\S). The FairCom DB Server appends a seven-digit even number and the extension .FCS to the name provided.
This configuration option can include an environment variable name that will be substituted with its value when the configuration file is read.
Default: No start mirrors
See Also
START_ODD_MIRROR
START_ODD_MIRRORS <full_path>S
The alternative name for odd numbered secondary start file. The start file contains the location at which the automatic recovery routines begin to scan the transaction logs. There are two start files (numbered zero and one) to reduce the risk of losing the starting point for automatic recovery. This name must be in the form of a directory path and the single character ‘S’ (e.g., C:\START\S). The FairCom DB Server appends a seven-digit odd number and the extension .FCS to the name provided.
This configuration option can include an environment variable name that will be substituted with its value when the configuration file is read.
Default: No start mirrors
See Also