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DFSR problem, need to start from scratch

    Question

  • Hi,

    we have a backup server running Windows 2008 R2 that runs DFSR.

    We have 4 branch servers also running Windows 2008R2 that are running DFSR and setup to replicate folders to the backup server.

    We experienced a disk corruption on the backup server and we cannot access the DFSR replicated folders anymore. I have tried to run a chkdsk but i still cannot access the folders.

    Server is filled with errors:

    The file system structure on the disk is corrupt and unusable. Please run the chkdsk utility on the volume DATA.

    Application popup: Windows - Corrupt File : Exception Processing Message 0xc0000102 Parameters 0x000007FEFD25718C 0x000007FEFD25718C 0x000007FEFD25718C 0x000007FEFD25718C

    DFSRs (1424) \\.\E:\System Volume Information\DFSR\database_CCFE_CDDD_FECD_C046\dfsr.db: An attempt to write to the file "\\.\E:\System Volume Information\DFSR\database_CCFE_CDDD_FECD_C046\fsr.log" at offset 768512 (0x00000000000bba00) for 5632 (0x00001600) bytes failed after 0 seconds with system error 21 (0x00000015): "The device is not ready. ".  The write operation will fail with error -1022 (0xfffffc02).  If this error persists then the file may be damaged and may need to be restored from a previous backup.

    It looks so bad i am thinking the only solution left is to delete the backup server volume where the replicated DATA resides and recreate it.

    How do i handle this on the DFSR side of things? Would that be enough the recreate the volume, and replication will start from scratch or should i delete system folders too, uninstall DFSR and recreate replication groups?

    Thanks

    Thursday, May 08, 2014 8:32 AM

Answers

  • Hi,

    You can leave your replication folders there. A new initial replication will redo the sync and if files are already their, it could help save some time for this.


    If you have any feedback on our support, please send to tnfsl@microsoft.com.

    • Marked as answer by Thomas Vitoz Wednesday, May 21, 2014 1:17 PM
    Wednesday, May 21, 2014 1:46 AM
    Moderator

All replies

  • Hi,

    In order to recreate from scratch, you need to first remove the replication group and all DFS namespace from DFS management so that these information will be removed from AD correctly.

    After that you can simply recreate your volumes/folders and recreate DFS namespaces.


    If you have any feedback on our support, please send to tnfsl@microsoft.com.

    Saturday, May 10, 2014 7:29 AM
    Moderator
  • But what about replicated data?

    I guess i need to remove manually Staging folders, and system folders too? Is there any documentation available?

    Thanks

    Saturday, May 10, 2014 10:25 AM
  • Hi,

    You can leave your replication folders there. A new initial replication will redo the sync and if files are already their, it could help save some time for this.


    If you have any feedback on our support, please send to tnfsl@microsoft.com.

    • Marked as answer by Thomas Vitoz Wednesday, May 21, 2014 1:17 PM
    Wednesday, May 21, 2014 1:46 AM
    Moderator