Filename of backup

Hello!

In documentation I have read that the format filename of backup is:

kkkeeeeetttttttttttt.xxx

where:
1) tttttttttttt is a time stamp string (12 digits)
2) xxx is 1BO

I just need to know what it means the following letters:
1) kkk
2) eeeee

In advance, thanks a lot!

best regards,
Dariusz Baumann

kkk

is the server key (unique identifier of the database).
find it in HKLM/SOFTWARE/Software AG/Tamino/Servers//ID

andreas f.

eeeee

is the ‘extent number’ of the backup. i.e. if a backup fills up the first location, it creates a second extent in the next location specified.