Hi,


Is it safe to clean out the contents of the C:\ProgramData\firebird 

folder, i.e. wipe it, when the Firebird service (superserver) is not 

running?



I understand that it contains lock tables etc. so should not be touched 

while FB is running. But it's not clear to me if it can be wiped safely 

when FB is not running, or if it contains data that can be vital when FB 

starts up again.



My situation is that I'm migrating a VM with an FB installation. 

Migration has been done like this, due to practical reasons (uptime vs. 

file transfer & VM conversion time):



1. Snapshot of source VM, i.e. nightly backup is copied to new location. 

Source stays up and running. Copy process takes about 1 day.



2. Snapshot is unpacked at target location, converted from VMWare to 

HyperV and brought online for additional reconfig and system testing.



3. A few days pass.



4. Both source and target Firebird services are stopped, so no database 

activity is going on anywhere.



5. Sync files from source to target, including database files. This file 

transfer is much smaller then in step 1 so it can be done during offline 

time.



In step 5 I find diffs in the C:\ProgramData\firebird folder, and I'm 

wondering what would be the best approach:



A) Wipe the folder at target.



B) Sync so target has the same content as source.



C) Leave target as is.



Please note that when FB service is started again at TARGET, the 

database files will be identical with those at the SOURCE at the time of 

FB shutdown, and probably won't "match" the contents of 

C:\ProgramData\firebird at TARGET. I would assume that this fact rules 

out option C).



Regards,

Kjell





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