Need Guidance on TREX

Hi Experts,
Please help me out on TREX Setup.
System Set up- EHP 7 with Data Base HANA.
Scope is TMS, E-Rec.
In TMS i came across information on TREX for Talent Search which is effectively handled by TREX..
1/ Now to have TREX do we need to have a deifferent Server & connect it to SAP Server?
2/ Can we built it on the same Server?
3/ We are planning to make Partition in SAP Server for E-Rec & shall we built TREX on that.
Please provide some insight into the same.

Hi,
I tried to explain it before.
For all TMS scenarios you need TREX!!. I try it in other words again: If you logon as a TMS to the Enterprise Portal and navigate to the Talent Information which is the most common used entry point for the TMS, you first have to execute a search. If there is to TREX installed you will get an error message. There is no chance to go deep into talent data of a special amployee.
TREX is installed on a different server, because it is an other technology. On TREX instance can be connected to different ABAP Instances.
TREX is not ony holding indexes to the HR data. All HR data is transferred to TREX.
Enterprise search/Embedded Search is part of your Netweaver application server. This is some kind of middelware between TMS frontend and TREX. It is responsible indexing the data (to TREX)  and executing the queries.
Hope that helps..
br
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