# Which RAID config for ES? **URL:** \ **Category:** Elasticsearch\ **Created:** [September 25, 2014, 1:58pm UTC](https://discuss.elastic.co/t/which-raid-config-for-es/19964 "2014-09-25T13:58:30Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![javadevmtl](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/javadevmtl/32/45613_2.png) [@javadevmtl](https://discuss.elastic.co/u/javadevmtl)\ **Post date:** [September 25, 2014, 1:58pm UTC](https://discuss.elastic.co/t/which-raid-config-for-es/19964/1 "2014-09-25T13:58:30Z")
So given the built in fault tolerance of Elasticsearch across the cluster are people adventurous enough to use RAID0? I'm thinking of middle ground like RAID5... -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/f57383fd-a25c-4be9-a04a-ed391fddcbcf%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/f57383fd-a25c-4be9-a04a-ed391fddcbcf%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![nik9000](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nik9000/32/44947_2.png) [@nik9000](https://discuss.elastic.co/u/nik9000)\ **Post date:** [September 25, 2014, 2:01pm UTC](https://discuss.elastic.co/t/which-raid-config-for-es/19964/2 "2014-09-25T14:01:15Z")
On Thu, Sep 25, 2014 at 9:58 AM, John Smith [java.dev.mtl@gmail.com](mailto:java.dev.mtl@gmail.com) wrote: So given the built in fault tolerance of Elasticsearch across the cluster > are people adventurous enough to use RAID0? Absolutely. We only do it with pairs of disks though because RAID0 on any more then two disks just feels squicky. Nik -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk\_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![jprante](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jprante/32/44941_2.png) [@jprante](https://discuss.elastic.co/u/jprante)\ **Post date:** [September 25, 2014, 2:12pm UTC](https://discuss.elastic.co/t/which-raid-config-for-es/19964/3 "2014-09-25T14:12:02Z")
If you want speed, use RAID 0. I have 4 cheap SSDs on one SAS-2 controller in RAID 0. Example for SSD ![](https://us1.discourse-cdn.com/elastic/original/3X/0/8/0822d74938b836e0f988be3a48a5d52c00a40da0.png) Jörg On Thu, Sep 25, 2014 at 4:01 PM, Nikolas Everett [nik9000@gmail.com](mailto:nik9000@gmail.com) wrote: > On Thu, Sep 25, 2014 at 9:58 AM, John Smith [java.dev.mtl@gmail.com](mailto:java.dev.mtl@gmail.com) > wrote: > > So given the built in fault tolerance of Elasticsearch across the cluster > > > are people adventurous enough to use RAID0? > > Absolutely. We only do it with pairs of disks though because RAID0 on any > more then two disks just feels squicky. > > Nik > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk\_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com) > [https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk\_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com?utm_medium=email&utm_source=footer) > . > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CAKdsXoG4iuN%3DQtmrnSiFFTfZjk3RmoyJztynw4qebi0bUSxe7A%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAKdsXoG4iuN%3DQtmrnSiFFTfZjk3RmoyJztynw4qebi0bUSxe7A%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![javadevmtl](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/javadevmtl/32/45613_2.png) [@javadevmtl](https://discuss.elastic.co/u/javadevmtl)\ **Post date:** [September 25, 2014, 5:42pm UTC](https://discuss.elastic.co/t/which-raid-config-for-es/19964/4 "2014-09-25T17:42:36Z")
So all your machines just have 2 drives each? Isn't that expensive? On Thursday, 25 September 2014 10:01:42 UTC-4, Nikolas Everett wrote: > On Thu, Sep 25, 2014 at 9:58 AM, John Smith \<[java.d...@gmail.com](mailto:java.d...@gmail.com) > \\> wrote: > > So given the built in fault tolerance of Elasticsearch across the cluster > > > are people adventurous enough to use RAID0? > > Absolutely. We only do it with pairs of disks though because RAID0 on any > more then two disks just feels squicky. > > Nik -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/b3650a09-dd36-455b-b882-6b8d4ca47257%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/b3650a09-dd36-455b-b882-6b8d4ca47257%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![javadevmtl](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/javadevmtl/32/45613_2.png) [@javadevmtl](https://discuss.elastic.co/u/javadevmtl)\ **Post date:** [September 25, 2014, 5:45pm UTC](https://discuss.elastic.co/t/which-raid-config-for-es/19964/5 "2014-09-25T17:45:37Z")
Not so much concerened about speed I know that RAID0 will give some performance boost. Just curious how tolerant an ES cluster is on RAID 0. On Thursday, 25 September 2014 10:12:10 UTC-4, Jörg Prante wrote: > If you want speed, use RAID 0. > > I have 4 cheap SSDs on one SAS-2 controller in RAID 0. > > Example for SSD > > [http://core0.staticworld.net/images/article/2014/06/intel\_ssd\_raid-100315228-orig.png](http://core0.staticworld.net/images/article/2014/06/intel_ssd_raid-100315228-orig.png) > > Jörg > > On Thu, Sep 25, 2014 at 4:01 PM, Nikolas Everett \<[nik...@gmail.com](mailto:nik...@gmail.com) > \\> wrote: > > > On Thu, Sep 25, 2014 at 9:58 AM, John Smith \<[java.d...@gmail.com](mailto:java.d...@gmail.com) > > \\> wrote: > > > > So given the built in fault tolerance of Elasticsearch across the cluster > > > > > are people adventurous enough to use RAID0? > > > > Absolutely. We only do it with pairs of disks though because RAID0 on > > any more then two disks just feels squicky. > > > > Nik > > > > -- > > You received this message because you are subscribed to the Google Groups > > "elasticsearch" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com) \. > > To view this discussion on the web visit > > [https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk\_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com) > > [https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk\_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com?utm_medium=email&utm_source=footer) > > . > > > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/46d0090a-45e0-464a-9d31-2fc1175d30b0%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/46d0090a-45e0-464a-9d31-2fc1175d30b0%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![javadevmtl](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/javadevmtl/32/45613_2.png) [@javadevmtl](https://discuss.elastic.co/u/javadevmtl)\ **Post date:** [September 25, 2014, 5:47pm UTC](https://discuss.elastic.co/t/which-raid-config-for-es/19964/6 "2014-09-25T17:47:13Z")
Not so much concerned about the performance boost of RAID 0 but rather how fault tolerant is ES on RAID 0. On Thursday, 25 September 2014 10:12:10 UTC-4, Jörg Prante wrote: > If you want speed, use RAID 0. > > I have 4 cheap SSDs on one SAS-2 controller in RAID 0. > > Example for SSD > > [http://core0.staticworld.net/images/article/2014/06/intel\_ssd\_raid-100315228-orig.png](http://core0.staticworld.net/images/article/2014/06/intel_ssd_raid-100315228-orig.png) > > Jörg > > On Thu, Sep 25, 2014 at 4:01 PM, Nikolas Everett \<[nik...@gmail.com](mailto:nik...@gmail.com) > \\> wrote: > > > On Thu, Sep 25, 2014 at 9:58 AM, John Smith \<[java.d...@gmail.com](mailto:java.d...@gmail.com) > > \\> wrote: > > > > So given the built in fault tolerance of Elasticsearch across the cluster > > > > > are people adventurous enough to use RAID0? > > > > Absolutely. We only do it with pairs of disks though because RAID0 on > > any more then two disks just feels squicky. > > > > Nik > > > > -- > > You received this message because you are subscribed to the Google Groups > > "elasticsearch" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com) \. > > To view this discussion on the web visit > > [https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk\_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com) > > [https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk\_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com?utm_medium=email&utm_source=footer) > > . > > > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/9a2f5e2b-865d-443f-91aa-20cc267c07d5%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/9a2f5e2b-865d-443f-91aa-20cc267c07d5%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![javadevmtl](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/javadevmtl/32/45613_2.png) [@javadevmtl](https://discuss.elastic.co/u/javadevmtl)\ **Post date:** [September 25, 2014, 6:08pm UTC](https://discuss.elastic.co/t/which-raid-config-for-es/19964/7 "2014-09-25T18:08:05Z")
So assuming 2 node cluster. If you lose the array on one machine, you still have the other. I guess it comes down to what are the chances that multiple RAID0 arrays fail at the same time on the cluster On Thursday, 25 September 2014 13:47:13 UTC-4, John Smith wrote: > Not so much concerned about the performance boost of RAID 0 but rather how > fault tolerant is ES on RAID 0. > > On Thursday, 25 September 2014 10:12:10 UTC-4, Jörg Prante wrote: > > > If you want speed, use RAID 0. > > > > I have 4 cheap SSDs on one SAS-2 controller in RAID 0. > > > > Example for SSD > > > > [http://core0.staticworld.net/images/article/2014/06/intel\_ssd\_raid-100315228-orig.png](http://core0.staticworld.net/images/article/2014/06/intel_ssd_raid-100315228-orig.png) > > > > Jörg > > > > On Thu, Sep 25, 2014 at 4:01 PM, Nikolas Everett [nik...@gmail.com](mailto:nik...@gmail.com) > > wrote: > > > > > On Thu, Sep 25, 2014 at 9:58 AM, John Smith [java.d...@gmail.com](mailto:java.d...@gmail.com) wrote: > > > > > > So given the built in fault tolerance of Elasticsearch across the > > > > > > > cluster are people adventurous enough to use RAID0? > > > > > > Absolutely. We only do it with pairs of disks though because RAID0 on > > > any more then two disks just feels squicky. > > > > > > Nik > > > > > > -- > > > You received this message because you are subscribed to the Google > > > Groups "elasticsearch" group. > > > To unsubscribe from this group and stop receiving emails from it, send > > > an email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com). > > > To view this discussion on the web visit > > > [https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk\_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com) > > > [https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk\_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com?utm_medium=email&utm_source=footer) > > > . > > > > > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/986ed9fb-82da-41d9-b0fb-6a999dde1c29%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/986ed9fb-82da-41d9-b0fb-6a999dde1c29%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![jprante](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jprante/32/44941_2.png) [@jprante](https://discuss.elastic.co/u/jprante)\ **Post date:** [September 25, 2014, 8:01pm UTC](https://discuss.elastic.co/t/which-raid-config-for-es/19964/8 "2014-09-25T20:01:08Z")
If you have replica \> 1, more than one server is allowed to fail. SSDs, also enterprise versions (you can recognize them by the price tag), have erasing limits - enterprise SSD live longer. When they exceed the limit, they tend to die abruptly without warning. This is a bit different from spindle disks with all the SMART monitoring in place where controllers can intervene. So if an SSD dies, the server is decommissioned for maintenance, for replacing the faulty SSD(s). Here are some graphs: [https://ef.gy/statistics:ssd-write-endurance](https://ef.gy/statistics:ssd-write-endurance) Jörg On Thu, Sep 25, 2014 at 8:08 PM, John Smith [java.dev.mtl@gmail.com](mailto:java.dev.mtl@gmail.com) wrote: > So assuming 2 node cluster. If you lose the array on one machine, you > still have the other. > > I guess it comes down to what are the chances that multiple RAID0 arrays > fail at the same time on the cluster > > On Thursday, 25 September 2014 13:47:13 UTC-4, John Smith wrote: > > > Not so much concerned about the performance boost of RAID 0 but rather > > how fault tolerant is ES on RAID 0. > > > > On Thursday, 25 September 2014 10:12:10 UTC-4, Jörg Prante wrote: > > > > > If you want speed, use RAID 0. > > > > > > I have 4 cheap SSDs on one SAS-2 controller in RAID 0. > > > > > > Example for SSD > > > > > > [http://core0.staticworld.net/images/article/2014/06/intel\_](http://core0.staticworld.net/images/article/2014/06/intel_) > > > ssd\_raid-100315228-orig.png > > > > > > Jörg > > > > > > On Thu, Sep 25, 2014 at 4:01 PM, Nikolas Everett [nik...@gmail.com](mailto:nik...@gmail.com) > > > wrote: > > > > > > > On Thu, Sep 25, 2014 at 9:58 AM, John Smith [java.d...@gmail.com](mailto:java.d...@gmail.com) > > > > wrote: > > > > > > > > So given the built in fault tolerance of Elasticsearch across the > > > > > > > > > cluster are people adventurous enough to use RAID0? > > > > > > > > Absolutely. We only do it with pairs of disks though because RAID0 on > > > > any more then two disks just feels squicky. > > > > > > > > Nik > > > > > > > > -- > > > > You received this message because you are subscribed to the Google > > > > Groups "elasticsearch" group. > > > > To unsubscribe from this group and stop receiving emails from it, send > > > > an email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com). > > > > To view this discussion on the web visit [https://groups.google.com/d/](https://groups.google.com/d/) > > > > msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq% > > > > 2BEvk\_Tnh4k06FXUd%2BestPmmg%[40mail.gmail.com](http://40mail.gmail.com) > > > > [https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk\_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com?utm_medium=email&utm_source=footer) > > > > . > > > > > > > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). > > > > > > -- > > > You received this message because you are subscribed to the Google Groups > > > "elasticsearch" group. > > > To unsubscribe from this group and stop receiving emails from it, send an > > > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > > > To view this discussion on the web visit > > > [https://groups.google.com/d/msgid/elasticsearch/986ed9fb-82da-41d9-b0fb-6a999dde1c29%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/986ed9fb-82da-41d9-b0fb-6a999dde1c29%40googlegroups.com) > > > [https://groups.google.com/d/msgid/elasticsearch/986ed9fb-82da-41d9-b0fb-6a999dde1c29%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/986ed9fb-82da-41d9-b0fb-6a999dde1c29%40googlegroups.com?utm_medium=email&utm_source=footer) > > > . > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CAKdsXoHrSZs2xsO2T%2BZzDxywbA\_Ta0dVkNZAVpW\_qQA9RfA\_sA%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAKdsXoHrSZs2xsO2T%2BZzDxywbA_Ta0dVkNZAVpW_qQA9RfA_sA%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [September 25, 2014, 10:01pm UTC](https://discuss.elastic.co/t/which-raid-config-for-es/19964/9 "2014-09-25T22:01:11Z")
Raid 0 , don't use 5 as the performance is sucky and ES is i/o intensive. Regards, Mark Walkom Infrastructure Engineer Campaign Monitor email: [markw@campaignmonitor.com](mailto:markw@campaignmonitor.com) web: [www.campaignmonitor.com](http://www.campaignmonitor.com) On 26 September 2014 06:01, [joergprante@gmail.com](mailto:joergprante@gmail.com) [joergprante@gmail.com](mailto:joergprante@gmail.com) wrote: > If you have replica \> 1, more than one server is allowed to fail. > > SSDs, also enterprise versions (you can recognize them by the price tag), > have erasing limits - enterprise SSD live longer. When they exceed the > limit, they tend to die abruptly without warning. This is a bit different > from spindle disks with all the SMART monitoring in place where controllers > can intervene. So if an SSD dies, the server is decommissioned for > maintenance, for replacing the faulty SSD(s). > > Here are some graphs: [https://ef.gy/statistics:ssd-write-endurance](https://ef.gy/statistics:ssd-write-endurance) > > Jörg > > On Thu, Sep 25, 2014 at 8:08 PM, John Smith [java.dev.mtl@gmail.com](mailto:java.dev.mtl@gmail.com) > wrote: > > > So assuming 2 node cluster. If you lose the array on one machine, you > > still have the other. > > > > I guess it comes down to what are the chances that multiple RAID0 arrays > > fail at the same time on the cluster > > > > On Thursday, 25 September 2014 13:47:13 UTC-4, John Smith wrote: > > > > > Not so much concerned about the performance boost of RAID 0 but rather > > > how fault tolerant is ES on RAID 0. > > > > > > On Thursday, 25 September 2014 10:12:10 UTC-4, Jörg Prante wrote: > > > > > > > If you want speed, use RAID 0. > > > > > > > > I have 4 cheap SSDs on one SAS-2 controller in RAID 0. > > > > > > > > Example for SSD > > > > > > > > [http://core0.staticworld.net/images/article/2014/06/intel\_](http://core0.staticworld.net/images/article/2014/06/intel_) > > > > ssd\_raid-100315228-orig.png > > > > > > > > Jörg > > > > > > > > On Thu, Sep 25, 2014 at 4:01 PM, Nikolas Everett [nik...@gmail.com](mailto:nik...@gmail.com) > > > > wrote: > > > > > > > > > On Thu, Sep 25, 2014 at 9:58 AM, John Smith [java.d...@gmail.com](mailto:java.d...@gmail.com) > > > > > wrote: > > > > > > > > > > So given the built in fault tolerance of Elasticsearch across the > > > > > > > > > > > cluster are people adventurous enough to use RAID0? > > > > > > > > > > Absolutely. We only do it with pairs of disks though because RAID0 on > > > > > any more then two disks just feels squicky. > > > > > > > > > > Nik > > > > > > > > > > -- > > > > > You received this message because you are subscribed to the Google > > > > > Groups "elasticsearch" group. > > > > > To unsubscribe from this group and stop receiving emails from it, send > > > > > an email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com). > > > > > To view this discussion on the web visit [https://groups.google.com/d/](https://groups.google.com/d/) > > > > > msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq% > > > > > 2BEvk\_Tnh4k06FXUd%2BestPmmg%[40mail.gmail.com](http://40mail.gmail.com) > > > > > [https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk\_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/CAPmjWd0pb5PiOE9Je8nG3mB5qq%2BEvk_Tnh4k06FXUd%2BestPmmg%40mail.gmail.com?utm_medium=email&utm_source=footer) > > > > > . > > > > > > > > > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). > > > > > > > > -- > > > > You received this message because you are subscribed to the Google Groups > > > > "elasticsearch" group. > > > > To unsubscribe from this group and stop receiving emails from it, send an > > > > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > > > > To view this discussion on the web visit > > > > [https://groups.google.com/d/msgid/elasticsearch/986ed9fb-82da-41d9-b0fb-6a999dde1c29%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/986ed9fb-82da-41d9-b0fb-6a999dde1c29%40googlegroups.com) > > > > [https://groups.google.com/d/msgid/elasticsearch/986ed9fb-82da-41d9-b0fb-6a999dde1c29%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/986ed9fb-82da-41d9-b0fb-6a999dde1c29%40googlegroups.com?utm_medium=email&utm_source=footer) > > > > . > > > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/CAKdsXoHrSZs2xsO2T%2BZzDxywbA\_Ta0dVkNZAVpW\_qQA9RfA\_sA%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAKdsXoHrSZs2xsO2T%2BZzDxywbA_Ta0dVkNZAVpW_qQA9RfA_sA%40mail.gmail.com) > [https://groups.google.com/d/msgid/elasticsearch/CAKdsXoHrSZs2xsO2T%2BZzDxywbA\_Ta0dVkNZAVpW\_qQA9RfA\_sA%40mail.gmail.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/CAKdsXoHrSZs2xsO2T%2BZzDxywbA_Ta0dVkNZAVpW_qQA9RfA_sA%40mail.gmail.com?utm_medium=email&utm_source=footer) > . > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. 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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 12:59am UTC](https://discuss.elastic.co/t/which-raid-config-for-es/19964/10 "2017-07-06T00:59:51Z")