Storage considerations? All depends. I pushed for years to start
journalling. Now, we are using High Availability (HA) software. Any file
that should be in sync with the backup machine is journaled. Don't know
how they ever got along without it. At first we were only using the
journals for the HA software. I showed them how to backout boo-boo's
using RMVJRNCHG and APYJRNCHG. They loved that. I showed them how to
audit data. They super digged that. Now we are keeping journal receivers
for 60 days. (Just upped it from 45.) Our journal receivers alone take
over 470GB. When you consider that we consolidated all our BPCS databases
into one library that takes only 67GB you see that journal receivers can
be quite significant. Granted, there's dozens of other libraries
involved.
There are numerous items to manage journal receivers. Some may consider
ours out of hand. But, ours is a business decision.

Some database utilities out there do a fair job of overlaying the data
structure of the data against the journal receivers to give you a
presentable picture of the changes. Like DBU's DBUJRN.

Rob Berendt

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