# Why is first index creation each day slower?

**URL:** <https://discuss.elastic.co/t/why-is-first-index-creation-each-day-slower/279096>\
**Category:** Elasticsearch\
**Created:** [July 19, 2021, 5:36pm UTC](https://discuss.elastic.co/t/why-is-first-index-creation-each-day-slower/279096 "2021-07-19T17:36:33Z")\
**Posts on this page:** 1\
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**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:** [July 19, 2021, 7:44pm UTC](https://discuss.elastic.co/t/why-is-first-index-creation-each-day-slower/279096/4 "2021-07-19T19:44:59Z")

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What size is your gp2 EBS volumes? These get IOPS proportional to size so small volumes can be very slow and [can become the bottleneck](https://discuss.elastic.co/t/bulk-insert-is-too-slow/278794/9).

To try to identify whether the instances or storage is the bottleneck I would recommend trying with a small m5 instance or faster storage to see what, if any, makes a difference.

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