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Issue with DFS storage size RRS feed

  • Question

  • Hi there!

    Quick run down of setup:

    Server 2012

    Using DFS on 3 servers.

    Each server has the same amount of storage assigned to DFS

    I configured server 1 to be the primary server (all clients connect by default to this server) If server 1 is down, clients connect to server two, and if Server 1 & 2 is down, it will connect to server 3 automatically.

    I realised that on all 3 servers the storage size is different. Recently I had Server one's storage LUN almost full so I removed 3GB from the LUN and it remained with the same size.

    Can someone explain why this is happening?

    could it be the staging file is different on all servers?


    Tux

    Thursday, February 11, 2016 8:00 AM

Answers

  • Hi T106,

    >>I realised that on all 3 servers the storage size is different. Recently I had Server one's storage LUN almost full so I removed 3GB from the LUN and it remained with the same size.

    According to your description, I suppose the major issue is not caused by the DFS but caused by the SAN.

    When deleting data, some SANs did not delete the data directly but marked the data for deletion, so the size looks like the same as earlier.

    You could run the chkdsk command on your cmd prompt.

    And remove the data again then run the chkdsk again to see whether the sizes has been changed.

    Besides, you could ask the SAN manufacturer to confirm that if they have some specific settings.

    In addition, please check if the following links are helpful:

    https://support.microsoft.com/en-us/kb/2869606

    https://support.microsoft.com/en-us/kb/2877115

    https://support.microsoft.com/en-us/kb/2908783

    Best regards,


    Andy_Pan


    • Edited by Hello_2018 Friday, February 12, 2016 3:03 AM
    • Proposed as answer by Hello_2018 Friday, February 26, 2016 3:13 AM
    • Marked as answer by Hello_2018 Tuesday, March 1, 2016 7:43 AM
    Friday, February 12, 2016 3:03 AM

All replies

  • Hi T106,

    >>I realised that on all 3 servers the storage size is different. Recently I had Server one's storage LUN almost full so I removed 3GB from the LUN and it remained with the same size.

    According to your description, I suppose the major issue is not caused by the DFS but caused by the SAN.

    When deleting data, some SANs did not delete the data directly but marked the data for deletion, so the size looks like the same as earlier.

    You could run the chkdsk command on your cmd prompt.

    And remove the data again then run the chkdsk again to see whether the sizes has been changed.

    Besides, you could ask the SAN manufacturer to confirm that if they have some specific settings.

    In addition, please check if the following links are helpful:

    https://support.microsoft.com/en-us/kb/2869606

    https://support.microsoft.com/en-us/kb/2877115

    https://support.microsoft.com/en-us/kb/2908783

    Best regards,


    Andy_Pan


    • Edited by Hello_2018 Friday, February 12, 2016 3:03 AM
    • Proposed as answer by Hello_2018 Friday, February 26, 2016 3:13 AM
    • Marked as answer by Hello_2018 Tuesday, March 1, 2016 7:43 AM
    Friday, February 12, 2016 3:03 AM
  • Hey Andy_Pan,

    Thanks for your reply. Actually I believe it's got to do with DFS.. When a file gets deleted from a folder, the folder should increase, in my case it is not increasing in size..


    Tux

    Friday, February 12, 2016 7:34 AM
  • Hi T106,

    Thanks for your feedback.

    Did you tried the above methods ?

    >>When a file gets deleted from a folder, the folder should increase

    In theory, it is something that should be.

    You could use the disk cleanup on your disks and test again.

    Best regards,


    Andy_Pan

    Friday, February 12, 2016 9:45 AM
  • Hi T106,

    Did your issue was solved?

    I will look forward to get your feedback.

    Best regards,


    Andy_Pan

    Tuesday, March 1, 2016 7:42 AM