# 1 cluster, multiple replicas with different synch settings
**URL:** https://discuss.elastic.co/t/1-cluster-multiple-replicas-with-different-synch-settings/20177
**Category:** Elasticsearch
**Created:** [October 10, 2014, 9:57am UTC](https://discuss.elastic.co/t/1-cluster-multiple-replicas-with-different-synch-settings/20177 "2014-10-10T09:57:34Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@wasit](https://discuss.elastic.co/u/wasit)
#### Post date: [October 10, 2014, 9:57am UTC](https://discuss.elastic.co/t/1-cluster-multiple-replicas-with-different-synch-settings/20177/1 "2014-10-10T09:57:34Z")
Is it feasible to configure a cluster, with multiple nodes, with more than
1 replica, and use the cluster.routing.allocation.awareness.attributes
option to configure:
a) Configure replica1 across a series of racks within the datacentre
b) Configure replica2 as distinct zones within two different datacentres
c) Configure replica 1 synchronous replication and replica2 as asynchronous
Thanks
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---
### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [October 11, 2014, 9:01am UTC](https://discuss.elastic.co/t/1-cluster-multiple-replicas-with-different-synch-settings/20177/2 "2014-10-11T09:01:38Z")
A and B should be ok, not sure on C as I believe that a/sync is on an index
level and would apply to any and all replicas.
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On 10 October 2014 20:57, wasit [mwhale@gmail.com](mailto:mwhale@gmail.com) wrote:
> Is it feasible to configure a cluster, with multiple nodes, with more than
> 1 replica, and use the cluster.routing.allocation.awareness.attributes
> option to configure:
>
> a) Configure replica1 across a series of racks within the datacentre
> b) Configure replica2 as distinct zones within two different datacentres
> c) Configure replica 1 synchronous replication and replica2 as asynchronous
>
> Thanks
>
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> [https://groups.google.com/d/msgid/elasticsearch/0d429bd7-04c8-47f5-897a-d42f34cba2a1%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/0d429bd7-04c8-47f5-897a-d42f34cba2a1%40googlegroups.com?utm_medium=email&utm_source=footer)
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---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 12:56am UTC](https://discuss.elastic.co/t/1-cluster-multiple-replicas-with-different-synch-settings/20177/3 "2017-07-06T00:56:52Z")