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Thread: Replication DiskLess

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  1. #1

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    hey guys i am here and i want to know much more about DSS.

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    Last edited by Al-S; 11-25-2011 at 08:55 AM.

  2. #2
    Join Date
    Aug 2010
    Posts
    404

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    You can get the manual from our website at:
    http://www.open-e.com/service-and-su...loads/manuals/

    Or contact us as mentioned in the "contact us" menu in our website.

  3. #3

    Default

    Hi,
    we have exactly the same problem (but we are not bonding and our mtu is set properly). After some network errors and dropped packages we have the state consistent/diskless on three LV as can be seen here:
    http://imageshack.us/photo/my-images/42/diskless.png/
    There were no errors from the Raid-controller.
    How can we come back to a consistent/consistent state?
    I have also opened a ticket for this: 1031171

  4. #4
    Join Date
    Aug 2010
    Posts
    404

    Default

    The system start to be in Diskless when there are mostly an I/O errors, so the system try to protect your data by going to diskless mode, as keep reading/writing while there are I/O errors that could lead to lose some data.

    In such case, the best to do is to check the RAID controller and storage disks health.

  5. #5

    Default

    Hi,
    we don`t have any disk errors logged by the raid-controller but we had some network problems. My question is how I can come back to an consistent/consistent state and how I can update now. The primary system has 6 LVs, the secondary too. On each LV is a replication task(primary is source, secondary is target). On the primary system 5/6 LVs are in the state diskless/consistent. So my first question is: does that mean, that the storage for these LVs is actually accesed on the secondary system via the replication interface?

    The last of the LVs is in the state consistent/consistent. So how should I update the system and come to an consistent/consitent state? Should I shut down the primary and use the secondary as main storage (as it has all LVs in a consistent state) while updating the primary and afterwards, when both are in a consistent state again, switch all back?
    Or should I shutdown the secondary (on which in my opinion the storage is accesed), update it and start the replication from an (diskless) primary again?

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