Overview
This guide provides recommendations for SQL Merge Replication to keep ACM working in case of a fail-over; however, more can be done using replication. Below is an outline of the core tables to help guide you in setting up your system.
Temporary/Data Tables
The following tables are treated as temporary tables and the data is constantly being shuffled around. Table data is either only for calculation and/or movement that can be regenerated on demand. These tables should NOT be replicated.
JobSchedules
ScheduledJobs
ScheduledJobSteps
tblArchiveStaging
tblCommStatsStaging
tblDailyRecs
tblDailySummary
tblHourlyRecs
tblHourlySummary
tblGcWritePending
tblItemStaging
tblObjectId
tblPubStaging
Required Data Tables
The next set of tables are the tables that contain the data that is necessary for starting ACM. If you want a fail-over that starts up with current data and last known item data, then these are REQUIRED.
tblArchivePosition
tblItems
tblObjects
tblProperties
*tblServerDirectory : this is only required if you are using the Server Directory function
Historical EFM Data Tables
Historical EFM data is stored in multiple tables. If you replicate your EFM data, you also want to replicate the position of publisher pointers to prevent accidental republishing of your data on fail-over.
tblArchiveRecords
tblCommStats
tblLiquidRecords
tblMeterRecords
tblMeterRecordsHistory
tblPublishedRecord
tblPublishPosition
History Tables
The below history tables contain no EFM records. They log changes, actions, and errors. Replicating them is optional.
ErrorLog
ScheduledJobsHistory
tblArchiveExec
tblCommandLog
*tblChanges : note this table is auto-populate on a trigger from tblObjects and tblProperties
tblGcWritePendingAudit
SchedulingErrors
Lookup Tables
The below history tables contain information to help decode records and store the database version information. They do not change between builds, so replication is optional.
tblDbVersion
tblGcWriteResultLookup
tblLookupCommType
tblLookupPeriod
tblLookupPollFailCode
tblLookupPollStatus
tblLookupRefProp
tblLookUpTypeID