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Tape backups failing, tape drive disappears from DPM RRS feed

  • Question

  • Hi,

    We are experiencing the following issues with our DPM backup.

    The backups to tape are failing on a daily basis. Every time the backup fails, the tape drive has disappeared from DPM (but not from the device manager). After performing a Rescan in DPM, the drive reappears and backups can be resumed. Sometimes two tape libraries are detected (one online and the other offline) after the rescan. In that case a second rescan is required.

    Our setup:

    • DPM 2012 R2 (same problem in DPM2012 SP1)
    • Server 2008 R2
    • Tape Library: HP MSL G3
    • Tape drive: HP Ultirum 4-SCSI
    • Ultra320 scsi adapter

    The tape library and drive have the latest available firmware and the most recent drivers are used. All available windows updates have been installed.

    Powershell command Get-DPMLibrary | fl *

    Id                      : ab141219-f3ec-496a-8d8d-099ade6a1140
    UserFriendlyName        : Hewlett Packard LTO Ultrium-4 drive
    Name                    : Stand-alone Drive: Hewlett Packard LTO Ultrium-4 drive: (Offline)
    DriveCount              : 1
    SlotCount               : 0
    Status                  : Offline
    AutoloaderLocation      : Port -1, Bus -1, Target -1, Lun -1
    Type                    : StandAloneDriveTapeLibrary
    SerialNumber            :
    NumberOfIEPortSlots     : 0
    NumberOfChangers        : 0
    AutoloaderStatus        : Not Available
    ScsiPort                : -1
    ScsiBus                 : -1
    ScsiLun                 : -1
    ScsiTargetId            : -1
    IsBarcodeSupported      : False
    BarcodeStatus           : Not Available
    IsOffline               : True
    IsEnabled               : True
    IsDoorUnlocked          : False
    DoorStatus              : Locked
    DefaultUnlockDoorPeriod : 600
    ProtectionGroups        :

    Id                      : 3c6dc4f8-daea-489f-91b0-e1dfd1da1701
    UserFriendlyName        : Hewlett Packard MSL G3 Series library  (x64 based)
    Name                    : Library: Hewlett Packard MSL G3 Series library  (x64 based): (Disabled)
    DriveCount              : 1
    SlotCount               : 45
    Status                  : Enabled
    VendorId                : Hewlett Packard
    ProductId               : Hewlett Packard MSL G3 Series library  (x64 based)
    AutoloaderLocation      : Port 3, Bus 0, Target 4, Lun 1
    Type                    : TapeLibrary
    SerialNumber            : DEC74704US
    NumberOfIEPortSlots     : 3
    NumberOfChangers        : 1
    AutoloaderStatus        : Available
    ScsiPort                : 3
    ScsiBus                 : 0
    ScsiLun                 : 1
    ScsiTargetId            : 4
    IsBarcodeSupported      : True
    BarcodeStatus           : Available
    IsOffline               : False
    IsEnabled               : True
    IsDoorUnlocked          : False
    DoorStatus              : Locked
    DefaultUnlockDoorPeriod : 600

    Event logs:

    Log Name:      DPM Alerts
    Source:        DPM-EM
    Date:          10/02/2014 8:08:00
    Event ID:      3311
    Task Category: None
    Level:         Error
    Keywords:      Classic

    The back up to tape job failed for the following reason: (ID: 3311)
    Tape Library Hewlett Packard MSL G3 Series library  (x64 based) could not be contacted. All jobs for Tape Library Hewlett Packard MSL G3 Series library  (x64 based) will fail if the connection is not established.
     (ID: 3301)

    Log Name:      DPM Alerts
    Source:        DPM-EM
    Date:          10/02/2014 8:11:46
    Event ID:      3303
    Task Category: None
    Level:         Error
    Keywords:      Classic

    Library drive Hewlett Packard LTO Ultrium-4 drive in Hewlett Packard MSL G3 Series library  (x64 based) is not functioning and library jobs may fail until the drive is repaired.  The drive is not functioning for the following reason:
     (ID: 3303)
    Drive Hewlett Packard LTO Ultrium-4 drive was detected as not ready. (ID: 25015)
    1. Check that the drive is powered on.
    2. Check if the drive is being serviced. If yes, you can ignore this alert.
    3. Check if the drive is connected properly.
    4. In the Device Manager if the drive is not enabled or not visible, refer to your hardware manual for other troubleshooting steps.

    Log Name:      DPM Alerts
    Source:        DPM-EM
    Date:          10/02/2014 8:11:48
    Event ID:      3301
    Task Category: None
    Level:         Error
    Keywords:      Classic

    Stand Alone Drive Tape Library Hewlett Packard LTO Ultrium-4 drive could not be contacted. All jobs for Stand Alone Drive Tape Library Hewlett Packard LTO Ultrium-4 drive will fail if the connection is not established.
     (ID: 3301)
    Stand Alone Drive Tape Library Hewlett Packard LTO Ultrium-4 drive is not ready. (ID: 25014)
    1. Check if the library is turned on.
    2. Check for loose connections on data or power channels.
    3. Make sure that the library is visible in Device Manager.
    4. Check to see that the door on the library is closed
    5. Refer to your hardware manual for other troubleshooting steps.

    We would like to monitor the SCSI connection between the server and the tape library. Is there a way to do this?

    Anyone an idea what the problem might be?


    • Edited by JeroenDR Monday, February 10, 2014 2:10 PM
    Monday, February 10, 2014 1:49 PM

All replies

  • I too am experiencing similar issues, slight differences for me.

    I have two IBM TS2900 libraries each with a single drive and a stand alone lto6.

    Windows 2012 R2

    I did follow the installations notes on persistent binding one library back cant seem to follow the layout in the same file the other.

    Wade

    Monday, March 24, 2014 7:48 PM
  • After you get this error in DMP do you go to device manager and do a hardware refresh?  If yes, does Windows rediscover the device?  Also, have you checked the library front panel for issues?  Another thing that I have seen with other backup vendors is that you can try to play with enabling/disabling the medium changer (if it is enabled disable it, if disabled try enabling it).  The other thing you may want to do is update the drivers on the server the drives are attached to.
    • Proposed as answer by Hinte Monday, April 7, 2014 12:33 PM
    Monday, March 24, 2014 7:53 PM
  • Did anyone solve this?

    I'm seeing this issue with DPM 2012R2 on server 2012 with HP MSL G3 and LTO6.

    The drives only disappear in DPM, not in Device Manager, so it appears to be a DPM-problem and not a hardware/Windows-problem.

    Tuesday, March 3, 2015 4:25 PM
  • This may seem pretty straightforward, but after having a similar problem with our Quantum Superloader, and after a Rescan which spotted the drive. I was still getting Drive could not be contacted errors when I was trying to write to tape. I rebooted the tape drive and after about 10 mins everything started again.   

    We had a controlled shutdown over the weekend of our servers and that may have caused the issue when things were brought back up, but we really shouldn't be having to resort to re-booting a device because we can't find any other solution to the problem.

    Personally I think the problem handling and reporting in DPM 2012 is shocking. Technically it might be a 21st century product, but it's interface systems are 1970's at best. Horrible.

    Monday, June 8, 2015 12:16 PM