Network disconnect between 2 DC's for SQL server The 2019 Stack Overflow Developer Survey...

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Network disconnect between 2 DC's for SQL server



The 2019 Stack Overflow Developer Survey Results Are InDoes Always On in Sql Server 2016 work better with Windows Server 2016?SQL Server 2016 - Server crashSQL on Server Core pitfallsMS SQL Server Errors/secDoes SQL Server 2016 Support Windows Server 2016 Essentials?SQL Server 2016: Invisible AliasSQL Server 2016 Install entering Single User ModeIs Windows able to run Disk Optimize with SQL Server running?Sql Server shows as running process but does not show in Services PanelWhat may increase the latency 3-4 times for SQL FCI the database?





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We are trying to resolve NW latency issue for one of our new build servers which is not yet live but migrated databases for testing in SQL2016 on windows 2016 with mirroring setup



Instance A - Total 10 TB databases with P in DC1



Instance b - Mirror with A in DC2



Distance between DC1 and DC2 is approx 20 miles, so not really a DR but works.



During the mirroring we see random disconnects though send and restore rate seems to be better.



Even though i am working with my NW engineers for some time now , but wanted an opinion of what might be going wrong here



When i ping SQL Virtual name say instance A from DC1 to DC2 instance B, for say 30 mins, there is almost 2 to 3% loss of packets. Around lost = 10 to 15 on avg. Mirror time out p[partner is default 10, should changing this mean anything if there is a drop in packets and how much can be acceptable ?



Load- Just random 50 GB load and nothing major









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    We are trying to resolve NW latency issue for one of our new build servers which is not yet live but migrated databases for testing in SQL2016 on windows 2016 with mirroring setup



    Instance A - Total 10 TB databases with P in DC1



    Instance b - Mirror with A in DC2



    Distance between DC1 and DC2 is approx 20 miles, so not really a DR but works.



    During the mirroring we see random disconnects though send and restore rate seems to be better.



    Even though i am working with my NW engineers for some time now , but wanted an opinion of what might be going wrong here



    When i ping SQL Virtual name say instance A from DC1 to DC2 instance B, for say 30 mins, there is almost 2 to 3% loss of packets. Around lost = 10 to 15 on avg. Mirror time out p[partner is default 10, should changing this mean anything if there is a drop in packets and how much can be acceptable ?



    Load- Just random 50 GB load and nothing major









    share







    New contributor




    BeginnerDBA is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























      0












      0








      0








      We are trying to resolve NW latency issue for one of our new build servers which is not yet live but migrated databases for testing in SQL2016 on windows 2016 with mirroring setup



      Instance A - Total 10 TB databases with P in DC1



      Instance b - Mirror with A in DC2



      Distance between DC1 and DC2 is approx 20 miles, so not really a DR but works.



      During the mirroring we see random disconnects though send and restore rate seems to be better.



      Even though i am working with my NW engineers for some time now , but wanted an opinion of what might be going wrong here



      When i ping SQL Virtual name say instance A from DC1 to DC2 instance B, for say 30 mins, there is almost 2 to 3% loss of packets. Around lost = 10 to 15 on avg. Mirror time out p[partner is default 10, should changing this mean anything if there is a drop in packets and how much can be acceptable ?



      Load- Just random 50 GB load and nothing major









      share







      New contributor




      BeginnerDBA is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      We are trying to resolve NW latency issue for one of our new build servers which is not yet live but migrated databases for testing in SQL2016 on windows 2016 with mirroring setup



      Instance A - Total 10 TB databases with P in DC1



      Instance b - Mirror with A in DC2



      Distance between DC1 and DC2 is approx 20 miles, so not really a DR but works.



      During the mirroring we see random disconnects though send and restore rate seems to be better.



      Even though i am working with my NW engineers for some time now , but wanted an opinion of what might be going wrong here



      When i ping SQL Virtual name say instance A from DC1 to DC2 instance B, for say 30 mins, there is almost 2 to 3% loss of packets. Around lost = 10 to 15 on avg. Mirror time out p[partner is default 10, should changing this mean anything if there is a drop in packets and how much can be acceptable ?



      Load- Just random 50 GB load and nothing major







      networking windows-server-2016 sql-server-2016





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      BeginnerDBA is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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