# Hard disk crashes in elastic search
**URL:** https://discuss.elastic.co/t/hard-disk-crashes-in-elastic-search/5137
**Category:** Elasticsearch
**Created:** [August 12, 2011, 12:15pm UTC](https://discuss.elastic.co/t/hard-disk-crashes-in-elastic-search/5137 "2011-08-12T12:15:58Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@soumya](https://discuss.elastic.co/u/soumya)
#### Post date: [August 12, 2011, 12:15pm UTC](https://discuss.elastic.co/t/hard-disk-crashes-in-elastic-search/5137/1 "2011-08-12T12:15:58Z")
In elastic search if a node crashes then data can be recovered from it
replicas.
But what happens if a single node's hard disk crashes and data is
lost.
Is there any mechanism to recover data then ?
Thanks in advance for any help
Soumya
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### Author:  [@kimchy](https://discuss.elastic.co/u/kimchy)
#### Post date: [August 13, 2011, 4:47pm UTC](https://discuss.elastic.co/t/hard-disk-crashes-in-elastic-search/5137/2 "2011-08-13T16:47:02Z")
You mean you run a single node cluster, and the data is lost? No, in this
case, there is no way to recover the data.
On Fri, Aug 12, 2011 at 3:15 PM, Soumya MR [SoumyaMR@algotree.com](mailto:SoumyaMR@algotree.com) wrote:
> In Elasticsearch if a node crashes then data can be recovered from it
> replicas.
> But what happens if a single node's hard disk crashes and data is
> lost.
> Is there any mechanism to recover data then ?
>
> Thanks in advance for any help
>
> Soumya
---
### Author:  [@James\_Cook](https://discuss.elastic.co/u/James_Cook)
#### Post date: [August 13, 2011, 8:04pm UTC](https://discuss.elastic.co/t/hard-disk-crashes-in-elastic-search/5137/3 "2011-08-13T20:04:38Z")
Except with a gateway writing to another server.
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### Author:  [@CHI\_WAI\_HO](https://discuss.elastic.co/u/CHI_WAI_HO)
#### Post date: [August 14, 2011, 1:24am UTC](https://discuss.elastic.co/t/hard-disk-crashes-in-elastic-search/5137/4 "2011-08-14T01:24:13Z")
How about if there is data file corruption in a cluster with
replicated nodes, will the error be replicated to other healthy node?
Thanks a lot.
On 8月14日, 上午4時04分, James Cook [jc...@tracermedia.com](mailto:jc...@tracermedia.com) wrote:
> Except with a gateway writing to another server.
---
### Author:  [@kimchy](https://discuss.elastic.co/u/kimchy)
#### Post date: [August 14, 2011, 10:52pm UTC](https://discuss.elastic.co/t/hard-disk-crashes-in-elastic-search/5137/5 "2011-08-14T22:52:33Z")
Because elasticsearch does push replication, other shards index the data as
well, so a corruption will not propagate to other nodes.
On Sun, Aug 14, 2011 at 4:24 AM, CHI WAI HO [zeroho@gmail.com](mailto:zeroho@gmail.com) wrote:
> How about if there is data file corruption in a cluster with
> replicated nodes, will the error be replicated to other healthy node?
>
> Thanks a lot.
>
> On 8月14日, 上午4時04分, James Cook [jc...@tracermedia.com](mailto:jc...@tracermedia.com) wrote:
>
> > Except with a gateway writing to another server.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 3:57am UTC](https://discuss.elastic.co/t/hard-disk-crashes-in-elastic-search/5137/6 "2017-07-06T03:57:01Z")