Problem with Tape Library paths

[Daniel_Be_]

Hi everyone,

I've got a problem with my exchange duplication to tape, it's failing with status 150

Here the detailed status:

20.04.2015 14:51:09 - awaiting resource CopyTo_MA_Scalar_i500 - No drives are available
20.04.2015 14:52:32 - awaiting resource CopyTo_MA_Scalar_i500 Reason: Drives are in use, Media Server: SERVER, 
                 Robot Number: 0, Robot Type: TLD, Media ID: N/A, Drive Name: N/A, 
                 Volume Pool: Tape_Out, Storage Unit: CopyTo_MA_Scalar_i500, Drive Scan Host: N/A

After that I ran the command vmoprcmd:

Drive Name               Label   Ready  RecMID  ExtMID  Wr.Enbl.  Type
    Host                       DrivePath                            Status
=============================================================================
HP.ULTRIUM5-SCSI.000     No      No                     No        hcart2
    r3demastmbk02.r3.group.corp  {1,0,3,1}                            TLD
    r3demastmbk02.r3.group.corp  /dev/alias/nst/VD001AV1408BVT00045 ( TLD
    r3demuadfbk02.r3.group.corp  /dev/alias/nst/VD001AV1408BVT00045 ( SCAN-TLD

HP.ULTRIUM5-SCSI.001     No      No                     No        hcart2
    r3demastmbk02.r3.group.corp  {1,0,3,2}                            TLD
    r3demastmbk02.r3.group.corp  /dev/alias/nst/VD002AV1408BVT00045 ( TLD
    r3demuadfbk02.r3.group.corp  /dev/alias/nst/VD002AV1408BVT00045 ( SCAN-TLD

HP.ULTRIUM6-SCSI.000     Yes     Yes    000024  000024  Yes       hcart3
    r3demastmbk02.r3.group.corp  {1,0,5,0}                            TLD
    r3demastmbk02.r3.group.corp  /dev/alias/nst/F3A1C35000 (r3demastm ACTIVE
    r3demuadfbk02.r3.group.corp  {1,0,4,0}                            SCAN-TLD
    r3demuadfbk02.r3.group.corp  /dev/alias/nst/F3A1C35000 (r3demastm TLD

HP.ULTRIUM6-SCSI.001     No      No                     No        hcart3
    r3demastmbk02.r3.group.corp  {2,0,4,0}                            ACTIVE
    r3demastmbk02.r3.group.corp  /dev/alias/nst/F3A1C35004 (r3demastm DOWN-TLD
    r3demuadfbk02.r3.group.corp  {2,0,4,0}                            SCAN-TLD
    r3demuadfbk02.r3.group.corp  /dev/alias/nst/F3A1C35004 (r3demastm TLD

Duplication is running fine via Drive "HP.ULTRIUM6-SCSI.000" but via HP.ULTRIUM6-SCSI.001 it's failing.

In my opinion thats an issue with the two different paths.

In windows device manager everything looks fine.

When i run "scan -tape" the result is clean.

Rebooting the media server and tape libary didn't solve the problem.

Do you have any idea how to fix this? 

Thanks in advance!

Best regards

[Marianne · Accepted solution]

Device paths are determined by the OS. If Persistent Binding between OS and HBA is not in place, device paths have a habit of changing when system is rebooted. My suggestion: Find out HBA make /model, then download management tool from HBA vendor (e.g SanSurfer for Qlogic). Delete all devices from NBU and from Windows Device Manager. Rescan devices in Windows Device Manager. Put Persistent Binding in place. Use NBU Device Config wizard to re-add devices.