# What is SBD?

**URL:** <https://forums.suse.com/t/what-is-sbd/34031>\
**Category:** General\
**Created:** [June 3, 2019, 7:03pm UTC](https://forums.suse.com/t/what-is-sbd/34031 "2019-06-03T19:03:55Z")\
**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:** [June 3, 2019, 7:03pm UTC](https://forums.suse.com/t/what-is-sbd/34031/1 "2019-06-03T19:03:55Z")

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What is SBD? Is this a shared disk or it is part of first node in the cluster?

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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:** [June 3, 2019, 7:05pm UTC](https://forums.suse.com/t/what-is-sbd/34031/2 "2019-06-03T19:05:19Z")

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SBD (STONITH Block Device) must be on a shared disk. Each node has its own slot on the SBD.