# While taking snapshot of elastic index it takes data of which shards like primary or replica? **URL:** \ **Category:** Elasticsearch\ **Created:** [January 13, 2021, 8:29am UTC](https://discuss.elastic.co/t/while-taking-snapshot-of-elastic-index-it-takes-data-of-which-shards-like-primary-or-replica/260953 "2021-01-13T08:29:46Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![tahseen\_fatima](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tahseen_fatima/32/67789_2.png) [@tahseen\_fatima](https://discuss.elastic.co/u/tahseen_fatima)\ **Post date:** [January 13, 2021, 8:29am UTC](https://discuss.elastic.co/t/while-taking-snapshot-of-elastic-index-it-takes-data-of-which-shards-like-primary-or-replica/260953/1 "2021-01-13T08:29:46Z")
Hi, I have a setup of ELK 7.10.0v. I am taking backup of elasticsearch index using snapshot API. I have a doubt while taking backup with sanpshot which shards backup does it takes like primary or replica or it takes backup of both the shards? Please help, Tahseen ---
**Author:** ![ylasri](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ylasri/32/86120_2.png) [@ylasri](https://discuss.elastic.co/u/ylasri)\ **Post date:** [January 13, 2021, 8:36am UTC](https://discuss.elastic.co/t/while-taking-snapshot-of-elastic-index-it-takes-data-of-which-shards-like-primary-or-replica/260953/2 "2021-01-13T08:36:34Z")
I guess snapshot applies only to primary shards, replicas are created at the restore stage ---
**Author:** ![tahseen\_fatima](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tahseen_fatima/32/67789_2.png) [@tahseen\_fatima](https://discuss.elastic.co/u/tahseen_fatima)\ **Post date:** [January 13, 2021, 8:40am UTC](https://discuss.elastic.co/t/while-taking-snapshot-of-elastic-index-it-takes-data-of-which-shards-like-primary-or-replica/260953/3 "2021-01-13T08:40:26Z")
Hi @ylasri, Thank you for the quick respnose, I want to know the exact, beause I have to do this activity in my production environment. Regrads, Tahseen ---
**Author:** ![ylasri](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ylasri/32/86120_2.png) [@ylasri](https://discuss.elastic.co/u/ylasri)\ **Post date:** [January 13, 2021, 9:00am UTC](https://discuss.elastic.co/t/while-taking-snapshot-of-elastic-index-it-takes-data-of-which-shards-like-primary-or-replica/260953/4 "2021-01-13T09:00:03Z")
I will ask may be @Christian_Dahlqvist to advice on this topic and confirm ---
**Author:** ![tahseen\_fatima](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tahseen_fatima/32/67789_2.png) [@tahseen\_fatima](https://discuss.elastic.co/u/tahseen_fatima)\ **Post date:** [January 13, 2021, 9:01am UTC](https://discuss.elastic.co/t/while-taking-snapshot-of-elastic-index-it-takes-data-of-which-shards-like-primary-or-replica/260953/5 "2021-01-13T09:01:12Z")
Hi @ylasri, Waiting for him to reply. Regards, Tahseen ---
**Author:** ![tahseen\_fatima](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tahseen_fatima/32/67789_2.png) [@tahseen\_fatima](https://discuss.elastic.co/u/tahseen_fatima)\ **Post date:** [January 15, 2021, 6:59am UTC](https://discuss.elastic.co/t/while-taking-snapshot-of-elastic-index-it-takes-data-of-which-shards-like-primary-or-replica/260953/6 "2021-01-15T06:59:14Z")
Hi @ylasri, Any update on this? As I have to do this activity on my production environment. Regards, Tahseen ---
**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:** [January 15, 2021, 7:02am UTC](https://discuss.elastic.co/t/while-taking-snapshot-of-elastic-index-it-takes-data-of-which-shards-like-primary-or-replica/260953/7 "2021-01-15T07:02:20Z")
It will store a single copy of the data so the size required on disk is basically the size of the primary shards. I assume primary shards are used for the snapshot but an not certain. This should not matter though. ---
**Author:** ![tahseen\_fatima](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tahseen_fatima/32/67789_2.png) [@tahseen\_fatima](https://discuss.elastic.co/u/tahseen_fatima)\ **Post date:** [January 15, 2021, 7:18am UTC](https://discuss.elastic.co/t/while-taking-snapshot-of-elastic-index-it-takes-data-of-which-shards-like-primary-or-replica/260953/8 "2021-01-15T07:18:19Z")
Hi @Christian_Dahlqvist, Thank you for the quick reply. Regards, Tahseen ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [February 12, 2021, 7:18am UTC](https://discuss.elastic.co/t/while-taking-snapshot-of-elastic-index-it-takes-data-of-which-shards-like-primary-or-replica/260953/9 "2021-02-12T07:18:29Z")
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