Howto migrate a production system?

Hi,

I want to upgrade to a new conquest-server whithout a longer down-time of the existing production system.
Is it a good idea to

- leave the existing running (dbaseIII-based 1.4.13), i.e. production system
- set up the new one with different AE/port (builtin sqlite 1.4.16)
- timestamp, regenerate the new one on the existing data/magdevice
- switch off the old server
- configure the new with AE/port from old system and startup
- send missing studies from timestamp to now to new server ?

I want to switch to sqlite, cause starting up conquest with dbaseIII takes about 15 minutes for building up the index. I have to migrate to new version for better forwarding capabilities.

Thanx in advance for better suggestions!
Liesenfeld

bart

The database is less than 1 TByte, already j2 = jpeg lossless.

I just figured out that a newly set up conquest-server with builtin-sqlite already accepts incoming dicom-pictures during regenerating an existing data-source.

So my workflow will be:
- switch off the existing conquest-server
- start the newly set-up server (builtin sqlite) with ae/port of the old one, so any new studies appear in the new server
- start the old conquest-server with different ae/port
- have the new server configured as virtual server for the old one, so queries for old studies are virtually mapped to the old server
- start regenerate the new one on the existing data-source
- stop old server when regenerate is finished

hope this works!

Liesenfeld