# Can data nodes have different size of disk in one cluster? **URL:** \ **Category:** Elasticsearch\ **Created:** [September 26, 2019, 4:13am UTC](https://discuss.elastic.co/t/can-data-nodes-have-different-size-of-disk-in-one-cluster/201134 "2019-09-26T04:13:55Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![yuecong](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/yuecong/32/49061_2.png) [@yuecong](https://discuss.elastic.co/u/yuecong)\ **Post date:** [September 26, 2019, 4:13am UTC](https://discuss.elastic.co/t/can-data-nodes-have-different-size-of-disk-in-one-cluster/201134/1 "2019-09-26T04:13:55Z")
does anyone know any concern if I construct a cluster with data nodes with different disk size? e.g. 5 data nodes with 200GB Disk 5 data nodes with 1TB disk and 5 data nodes with 10TB disk. Will this cause any issue if the data size fill up those small nodes? ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [September 26, 2019, 4:33am UTC](https://discuss.elastic.co/t/can-data-nodes-have-different-size-of-disk-in-one-cluster/201134/2 "2019-09-26T04:33:53Z")
Elasticsearch assumes all nodes have the same amount of disk so that would cause a problem unless you divide your cluster into "zones" using [shard allocation filtering](https://www.elastic.co/guide/en/elasticsearch/reference/current/shard-allocation-filtering.html), e.g. [hot/warm/cold architecture](https://www.elastic.co/blog/implementing-hot-warm-cold-in-elasticsearch-with-index-lifecycle-management). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [October 24, 2019, 4:33am UTC](https://discuss.elastic.co/t/can-data-nodes-have-different-size-of-disk-in-one-cluster/201134/3 "2019-10-24T04:33:53Z")
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