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What's the default high availability of Azure storage? how many replicas at backend? RRS feed

  • Question

  • hello Experts

    Just need to know What's the default high availability of Azure storage? how many replicas at backend? what's the Locally Redundant? When will Geo Redundant be included? thanks


    Mark as Answer if it helps. This posting is provided "AS IS" with no warranties, confers no rights.

    Monday, January 9, 2017 7:40 AM

Answers

  • Greetings Dannol,


    Thank you for contacting Microsoft forums. We are pleased to answer your query.


    You can refer this table for the number of replication copies based on the type of replication model you choose.

    The locally redundant storage (LRS) replicates your data three times in a storage-scale unit that is hosted in a data center in the region where you created your storage account.

    LRS storage is the least expensive option and offers less durability than other options. In the event of an incident at the data center (fire, flood, etc.) the three replicas can be lost or unrecoverable. To mitigate this risk, geo-redundant storage (GRS) is recommended for most applications.


    I hope that the reply will assist you in getting your query addressed. In case you require further assistance, please do reply to the thread as we are always available to your queries.


    Regards.

    Md. Shihab

    *********************************************************************************

    Please remember to click "Mark as Answer" on the post that helps you as this can be beneficial to other community members reading the thread. And vote as helpful.

    Monday, January 9, 2017 12:05 PM

All replies

  • Greetings Dannol,


    Thank you for contacting Microsoft forums. We are pleased to answer your query.


    You can refer this table for the number of replication copies based on the type of replication model you choose.

    The locally redundant storage (LRS) replicates your data three times in a storage-scale unit that is hosted in a data center in the region where you created your storage account.

    LRS storage is the least expensive option and offers less durability than other options. In the event of an incident at the data center (fire, flood, etc.) the three replicas can be lost or unrecoverable. To mitigate this risk, geo-redundant storage (GRS) is recommended for most applications.


    I hope that the reply will assist you in getting your query addressed. In case you require further assistance, please do reply to the thread as we are always available to your queries.


    Regards.

    Md. Shihab

    *********************************************************************************

    Please remember to click "Mark as Answer" on the post that helps you as this can be beneficial to other community members reading the thread. And vote as helpful.

    Monday, January 9, 2017 12:05 PM
  • If the RA-GRS is already in production, could I switch to GRS? how long and much $ does the switch cost? and what is the price for GRS/RA-GRS? thanks

    Mark as Answer if it helps. This posting is provided "AS IS" with no warranties, confers no rights.

    Tuesday, January 10, 2017 5:48 AM
  • Greetings Dannol,


    You can change how your data is replicated after your storage account has been created, unless you specified ZRS when you created the account.

    RA-GRS costs just a little more than GRS since you get Read-Access with RA-GRS. Here’s a brief guide on the Azure Storage pricing standards for different replication options.

    For RA-GRS billing, Storage accounts will be charged for a minimum of 30 days from the time the service is enabled. For example, if RA-GRS is turned ON on 1 January and turned off on 5 January, the storage account will be charged for RA-GRS until 30 January. After that, GRS pricing would start.

    If RA-GRS is turned ON on 1 January and turned off on 14 February, RA-GRS would be charged until 14 February. On 15 February, GRS pricing would take effect.


    Regards.

    Md. Shihab


    • Edited by Md Shihab Wednesday, January 11, 2017 4:18 AM
    Wednesday, January 11, 2017 4:17 AM
  • does it charge when user reads through the RA-GRS?

    Mark as Answer if it helps. This posting is provided "AS IS" with no warranties, confers no rights.

    Wednesday, January 11, 2017 5:58 AM
  • If you choose the access tier as ‘Hot’ then data retrieval from RA-GRS is free. However, for the ‘Cool’ access tier the data retrieval is charged at $0.01 per GB. Hope this helps!

    Regards.

    Md. Shihab

    Thursday, January 12, 2017 4:16 AM