# Primary Index

**URL:** <https://discuss.aerospike.com/t/primary-index/4912>\
**Category:** General Discussion\
**Created:** [February 5, 2018, 12:27pm UTC](https://discuss.aerospike.com/t/primary-index/4912 "2018-02-05T12:27:04Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![milotic91](https://avatars.discourse-cdn.com/v4/letter/m/57b2e6/32.png) [@milotic91](https://discuss.aerospike.com/u/milotic91)\
**Post date:** [February 6, 2018, 6:34am UTC](https://discuss.aerospike.com/t/primary-index/4912/7 "2018-02-06T06:34:42Z")

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Thanku rbotzer, it is very much clear that primary index does not store keys, it only stores digest. Does digest is also stored on SSD along with data?

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