Zabbix Migration

[vnoc]

Hi All,


I have two zabbix setups(each setup consists of 100 server) where i wanted to migrate it to a single setup. Kindly suggest is there any way to do this( like i dont want to loose my old polled data )

[DmitryL]

Nearly impossible.
You can export configuration such as templates and hosts to new instance, but keep the old one for a while just for a visualization of old data.

[kloczek]

If configurations of the hosts will be migrated it is possible to list all itemid's on new host and knowing that on old zabbix the same items will have other item'id's it is possible to extract trends and history data from one host and inject in db backend of new host under new itemid's.
In other words it is 100% doable. It may take a time to prepare mapping old itemid in db A to new itemid in db B and when manual migration f single item data will be proven than it works all what is needed is run such procedure in the loop using those mapping data.
Migrating trends data will be enough and as usually trends data takes not more than 5% of whole db content it with migration this part only such migration should be quite quick.