# New ElasticSearch setup

**URL:** <https://discuss.elastic.co/t/new-elasticsearch-setup/359552>\
**Category:** Elasticsearch\
**Tags:** docker\
**Created:** [May 15, 2024, 1:35pm UTC](https://discuss.elastic.co/t/new-elasticsearch-setup/359552 "2024-05-15T13:35:28Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Boodle](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/boodle/32/86046_2.png) [@Boodle](https://discuss.elastic.co/u/Boodle)\
**Post date:** [May 15, 2024, 1:35pm UTC](https://discuss.elastic.co/t/new-elasticsearch-setup/359552/1 "2024-05-15T13:35:28Z")

</div>

We have a 3 node elasticSearch cluster setup on docker instance OS: Oracle Linux. This Elasticsearch version 7.17.6 is used by client application Oracle webcenter which has 7 Million documents stored on the Database.

Recently, due to critical issues, elasticsearch servers had malformed & we are planning to install similar setup of Elasticsearch on new servers so as can be used by our application Webcenter. My queries:  
**1) What loss can we expect if we move to new servers? (we had been using previous Elasticsearch servers since last 4 years). Will it be only Indexes lost and would it reinstate to our previous elasticsearch servers if we do a full collection rebuild on new servers after complete setup?**

**2) Can we copy & use any data from our previous ES servers to new e.g. indexes etc since we stil have data intact in them?**

**3) Should we install our previous Elasticsearch version 7.17.6 or the latest ES version? What difference it will make?**