HCL Domino Ideas Portal
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An inplace, file size reduction compact via -B would not solve the problem. the database would still almost completely re-written.
The best compact is a DBMT pre-alloc compact.
You don't need a nightly compact. At most you should run a compact once per week if you have DAOS enabled and NIFNSF.
In many cases a compact every second week would be perfectly OK.
I would vote the other way round to have compact support the DBMT style compact option with pre-alloc.
Daniel Nashed
HCL Lifetime Ambassador
[https://blog.nashcom.de]
DBMT using "copy style" compacts also makes it bad for systems that use "snapshot" backups as it makes the "file system change delta" much bigger than it could be.