Exchange Transaction Log Generation Statistics Analysis Script

When designing a site resilient Exchange Server solution, one of the required planning tasks is to determine how many transaction logs are generated on an hourly basis. This helps figure out how much bandwidth will be required when replicating database copies between sites, and what the effects will be of adding additional database copies to the solution. If designing an Exchange solution using the Exchange Server Role Requirements Calculator, the percent of logs generated per hour is an optional input field.

Previously, the most common method of collecting this data involved taking captures of the files in each log directory on a scheduled basis (using dir, Get-ChildItem, or CollectLogs.vbs). Although the log number could be extracted by looking at the names of the log files, there was a lot of manual work involved in figuring out the highest the log generation from each capture, and getting rid of duplicate entries. Once cleaned up, the data still had to be analyzed manually using a spreadsheet or a calculator. Trying to gather data across multiple servers and databases further complicated matters.

To improve upon this situation, this all-in-one script that could collect transaction log statistics, and analyze them after collection was written.

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