HP Storage Mirroring Software - Manual (Page 614)

Recommended optimizations Page 613 of 677
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Create a connection to the Diagnostics target . This connection uses a built-in null
(non-existent) target to simulate a real connection. No data is actually transmitted
across the network. Since there is no true connection, this connection type helps
you plan your implementation strategy.
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After the connection has run for hours, or even days, use DTStat to convert the
statistics file to a .csv file, which can be opened in a spreadsheet for analysis.
One method to avoid for planning purposes is estimating the amount of data that will be
replicated in a given period using the amount of data backed up in a differential backup.
Although this may be valid in some cases, it is usually not a good indicator because it is
based on the differences in data at the time of backup. For example, if a 1 MB Microsoft
Word document is saved ten times throughout the day, this will result in 10 MB of
replication traffic because Word rewrites the entire file each time it is saved. However,
this will only result in 1 MB being backed up for a differential backup.