Forum Discussion

NZ16's avatar
NZ16
Level 3
13 years ago
Solved

ISCSI Target - The disk is offline

I'm running the new Backup Exec 2012 with all the current patches.  I have disk to disk backups scheduled.  The odd thing is sometimes I get the error the disk is offline and the error contains this: This is typically caused by the folder becoming inaccessible due to it being deleted, renamed, or unshared. It may also be caused by a disk full condition. The folder state has been set to offline. Please attend to this condition. Additional detail may be found in the Event Viewer - Application Log.  

The ISCSI target is always available, anyone have any solutions or seen this before?

2012
Backup and Recovery
Backup Exec
Error messages
  • BEI's avatar
    BEI
    13 years ago

    Hi,

    Just letting you know that the problem with our iSCSI disconnections to the Dedupe store etc... on Dell3600i is now resolved.

    We have moved our Vmware vCentre to a new server away from the storage managment and that seems to have resolved our issues.

     

    regards

     

     

  • BEI's avatar
    BEI
    Level 5
    13 years ago

    I have spent all day working on Backup issues.

    I have now found how to run individual jobs:)

    I have also recreated the job and it appers to be working, I feel sorry for people with many serves.

    Regards

  • teiva-boy's avatar
    teiva-boy
    Level 6
    13 years ago

    I would recommend if you have the chance to stress test the iSCSI system using either the Symantec B2D test tool, or some other tool like an ATTO benchmark or IOMeter.  

    Basically run a repeating test to see if you can recreate the disk disconnecting and receiving an error.  Give it a bunch of sequential writes at multiple streams and see what happens.  

     

    Oh and I hope you have MPIO setup on multiple paths or are using 10GbE.  Without MPIO, speed is dismal with 1GbE iSCSI.

  • NZ16's avatar
    NZ16
    Level 3
    13 years ago

    I think I'll try a few more things, then will have to call support and open a case if I can't get it working.  Thanks for the suggestions.

  • BEI's avatar
    BEI
    Level 5
    13 years ago

    Hi,

    Just letting you know that the problem with our iSCSI disconnections to the Dedupe store etc... on Dell3600i is now resolved.

    We have moved our Vmware vCentre to a new server away from the storage managment and that seems to have resolved our issues.

     

    regards