# 1TB index. Setup question

**URL:** <https://discuss.elastic.co/t/1tb-index-setup-question/79080>\
**Category:** Elasticsearch\
**Created:** [March 17, 2017, 7:02pm UTC](https://discuss.elastic.co/t/1tb-index-setup-question/79080 "2017-03-17T19:02:23Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Kazama](https://avatars.discourse-cdn.com/v4/letter/k/d07c76/32.png) [@Kazama](https://discuss.elastic.co/u/Kazama)\
**Post date:** [March 17, 2017, 7:02pm UTC](https://discuss.elastic.co/t/1tb-index-setup-question/79080/1 "2017-03-17T19:02:23Z")

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I've got a physical node with 384G RAM and a 1TB index to put it on.

I've read into this [https://www.elastic.co/guide/en/elasticsearch/guide/current/heap-sizing.html](https://www.elastic.co/guide/en/elasticsearch/guide/current/heap-sizing.html) and this piece looks like my situation:

> Are you doing a lot of sorting/aggregations? Are most of your aggregations on numerics, dates, geo\_points and not\_analyzed strings? You’re in luck! Give Elasticsearch somewhere from 4-32 GB of memory and leave the rest for the OS to cache doc values in memory.

My index is very simple:

- there is only one analyzed field (as term\_vector)
- there are some integer/date/string (not\_analyzed) fields

Most of activity would be like "filter by one of the fields, sort by one of the **not\_analyzed** fields".

**The questions is** : is it really a good idea running a single elastic node with 32G heap in case of 1TB index?  
Mby running two dockered elastic nodes 32G heap each is more feasible?

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [March 17, 2017, 8:18pm UTC](https://discuss.elastic.co/t/1tb-index-setup-question/79080/2 "2017-03-17T20:18:44Z")

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If you are gunna run multiple nodes, start with 3, otherwise you risk split brain.

That said, try one, then 3, see how it goes. You definitely have the RAM for it.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [April 14, 2017, 8:18pm UTC](https://discuss.elastic.co/t/1tb-index-setup-question/79080/3 "2017-04-14T20:18:52Z")

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