Estimating disk space for challenger revision
Estimate the disk space that is needed before a challenger revision goes live.
How you calculate the disk space depends on whether deferred writing is enabled.
If deferred writing is not enabled, the free disk space should be at least:
<Totals of DDC Statistics in the General page of the Challenger revision> -
<Totals of DDC Statistics in the General page of the Champion revision> + <new size of the
largest changed element>
If deferred writing is enabled, the free disk space should be at least the maximum of A and B, where:
A = (<Totals of DDC Statistics in the General page of this Challenger revision> -
<Totals of DDC Statistics in the General page of the Champion revision>) * 2 + <new size of
the largest changed element>
B = (<new size of the largest changed element>) * 2