# Does one OSD=one physical disk?

**URL:** <https://forums.suse.com/t/does-one-osd-one-physical-disk/35193>\
**Category:** General\
**Created:** [August 3, 2020, 6:13pm UTC](https://forums.suse.com/t/does-one-osd-one-physical-disk/35193 "2020-08-03T18:13:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Academy\_Instructor](https://avatars.discourse-cdn.com/v4/letter/a/9d8465/32.png) [@Academy\_Instructor](https://forums.suse.com/u/Academy_Instructor)\
**Post date:** [August 3, 2020, 6:13pm UTC](https://forums.suse.com/t/does-one-osd-one-physical-disk/35193/1 "2020-08-03T18:13:05Z")

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Does one OSD=one physical disk?

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<div class="post-metadata">

**Author:** ![Academy\_Instructor](https://avatars.discourse-cdn.com/v4/letter/a/9d8465/32.png) [@Academy\_Instructor](https://forums.suse.com/u/Academy_Instructor)\
**Post date:** [August 3, 2020, 6:13pm UTC](https://forums.suse.com/t/does-one-osd-one-physical-disk/35193/2 "2020-08-03T18:13:27Z")

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Technically, it’s possible to configure Ceph to have multiple OSDs assigned to a storage device. This is generally just an academic, developmental feature. From a SES support perspective, you are correct: One OSD per storage device.