I've seen other posts with this error but none in an environment like mine; have used those posts as a guide but have not solved this one yet.
I'm using an EMC Celerra filer, HPDP9 on a unix cell, and have created a VTL on a StoreOnce 6500. I can see the VTL tapes on the Celerra ok and I have created a new device in HPDP as SCSI Library / NDMP Celerra. The ndmp client has the ndmp media agent installed, the ndmp server is the Celerra. Robotic control is through the ndmp server and uses the device address of the robot as seen on the Celerra. The media type is LTO-Ultrium and the VTL is configured with UltriumVT emulation. A single drive has been created for testing.
I can scan barcodes sucessfully. If I try to scan a tape in a slot or scan the drive, then after some minutes I get the error:
[Normal] From: MMA-NDMP@server.domain "scsi_library_tape1" Time: 4/26/2016 1:17:23 PM
By: UMA@server.domain@c176t0l0
Loading medium from slot 1 to device c64t0l0
[Major] From: MMA-NDMP@server.domain "scsi_library_tape1" Time: 4/26/2016 1:24:14 PM
[90:54] c64t0l0
Cannot open device (Target drive is busy.)
From the StoreOnce gui I can see the tape being moved into the drive successfully, then moved back to the slot after the error appears in HPDP. Based on whats working, this doesn't seem to be a a zoning issue. I don't think it's an HPDP media issue, although the integration guide mentions using an NDMP media pool, but nowhere in creating a media pool can I see where I can specify NDMP, so I'm specifying Ultrium to match the VTL. One post mentioned using a device lock, which I am, so I don't think that's the issue.
I'd appreciate any guidance on this one. Thanks in advance.
