# CPU 16 cores with 32 threads will create 32 shards for an index? **URL:** \ **Category:** Elasticsearch\ **Created:** [December 12, 2019, 10:13am UTC](https://discuss.elastic.co/t/cpu-16-cores-with-32-threads-will-create-32-shards-for-an-index/211610 "2019-12-12T10:13:43Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![vuvantuancntt](https://avatars.discourse-cdn.com/v4/letter/v/a87d85/32.png) [@vuvantuancntt](https://discuss.elastic.co/u/vuvantuancntt)\ **Post date:** [December 12, 2019, 10:13am UTC](https://discuss.elastic.co/t/cpu-16-cores-with-32-threads-will-create-32-shards-for-an-index/211610/1 "2019-12-12T10:13:43Z")
Hi all, I am estimating number of shard for an index. I am focus on number of shards and CPU cores, threads only. Other things I have calculated already and I aware it. My server has a 16 cores CPU, thread number is 32. I have only one Elasticsearch data node in a cluster. So how many shards should I create for an index? 32 shards? A request will be executed parallel on a thread per a shard - is it mean : with a request Elasticsearch uses parallel 32 threads on 32 shards? ---
**Author:** ![linkerc](https://avatars.discourse-cdn.com/v4/letter/l/13edae/32.png) [@linkerc](https://discuss.elastic.co/u/linkerc)\ **Post date:** [December 13, 2019, 11:24pm UTC](https://discuss.elastic.co/t/cpu-16-cores-with-32-threads-will-create-32-shards-for-an-index/211610/2 "2019-12-13T23:24:20Z")
This is an invalid assumption. Shard count has nothing to do with CPU. It's a function of data volume. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [January 10, 2020, 11:24pm UTC](https://discuss.elastic.co/t/cpu-16-cores-with-32-threads-will-create-32-shards-for-an-index/211610/3 "2020-01-10T23:24:23Z")
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