# Adding multiple new nodes into an existing cluster, tablets and consistent topology

**URL:** <https://forum.scylladb.com/t/adding-multiple-new-nodes-into-an-existing-cluster-tablets-and-consistent-topology/2785>\
**Category:** ScyllaDB\
**Tags:** administration, tablets\
**Created:** [August 27, 2024, 5:56am UTC](https://forum.scylladb.com/t/adding-multiple-new-nodes-into-an-existing-cluster-tablets-and-consistent-topology/2785 "2024-08-27T05:56:49Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Guy](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.scylladb.com/guy/32/9_2.png) [@Guy](https://forum.scylladb.com/u/Guy)\
**Post date:** [August 27, 2024, 5:56am UTC](https://forum.scylladb.com/t/adding-multiple-new-nodes-into-an-existing-cluster-tablets-and-consistent-topology/2785/1 "2024-08-27T05:56:49Z")

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> [@](#):
>
> [**Originally from the User Slack**](https://scylladb-users.slack.com/)
> 
> ![Johannes_Gilger](https://us1.discourse-cdn.com/flex016/uploads/scylladb/original/2X/b/b40bcbb0f52fd480750f2aa559cd6886aa70fc20.jpeg) **@Johannes\_Gilger:** Can we add multiple new nodes into an existing scylla cluster at once or do we have to do it one-by-one?
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> ![avi](https://us1.discourse-cdn.com/flex016/uploads/scylladb/original/1X/b5e08becda8d9df1abff1d3a2d9ffe1126ac3fc6.jpeg) **@avi:** When consistent topology is enabled, you can add nodes simultaneously. It’s only an improvement when your tables use tablets, however.
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> ![Johannes_Gilger](https://us1.discourse-cdn.com/flex016/uploads/scylladb/original/2X/b/b40bcbb0f52fd480750f2aa559cd6886aa70fc20.jpeg) **@Johannes\_Gilger:** @avi Thanks, that makes sense. We’ll go one-by-one for now. Still having some issues with the fs.aio-max-nr setting anyway that we need to iron out
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> ![avi](https://us1.discourse-cdn.com/flex016/uploads/scylladb/original/1X/b5e08becda8d9df1abff1d3a2d9ffe1126ac3fc6.jpeg) **@avi:** Just increase it 10x