I am stuck in a bit of a sticky situation where my DPM Server 2010 (running on Server 2008 SP2) has got itself into a muddle with what it thinks are the tape drives and no of drives per library attached to it. The situation is similar to what is described in the post below (and i suspect I need to follow most of the steps therein):
http://social.technet.microsoft.com/Forums/en-US/dataprotectionmanager/thread/944d0b37-1fc5-4dbc-9fd2-41b9cb3299d0
My issue is DPM keeps reporting the drive isd in use and running dpmdrivemappingtool.exe and rescan does not resolve the issue. I did rename the DPMLA.xml file too before i ran these. The gui ony shows 1 library with 1 drive which is correct but the management shell reports 1 library with 2 drives and a further 2 standalone drives:
[Edited] Output of Get-DPMLibrary | Format-list
Name : Library: Quantum Super Loader
Number of drives : 2
Number of slots : 16
Number of I/E ports : 0
Status : Enabled
Computer :
Door : Locked
Barcode reader : Available
Autoloader : Available
Library serial number : CF7DC36137
Autoloader location : Port 3, Bus 0, Target 3, Lun 1
Protection groups :
Name : Stand-alone Drive: Quantum LTO 3 Tape Drive: (Offline)
Number of drives : 1
Number of slots : 0
Number of I/E ports : 0
Status : Offline
Computer :
Door : Locked
Barcode reader : Not Available
Autoloader : Not Available
Library serial number :
Autoloader location : Port -1, Bus -1, Target -1, Lun -1
Protection groups :
Name : Stand-alone Drive: CERTANCE ULTRIUM 3 SCSI Sequential D
evice: (Offline)
Number of drives : 1
Number of slots : 0
Number of I/E ports : 0
Status : Offline
Computer :
Door : Locked
Barcode reader : Not Available
Autoloader : Not Available
Library serial number :
Autoloader location : Port -1, Bus -1, Target -1, Lun -1
Protection groups :
Output of Get-TapeDrive | Format-list
Name : Quantum LTO 3 Tape Drive (JD00PEE)
Status : Offline
Library : Quantum Super Loader
Windows name for the drive : \\.\Tape2147483646
Drive type : CLEANER_CARTRIDGE, LTO_Ultrium
Drive serial number : JD00PEE
Last cleaned : 10/7/2011 2:20:57 PM
Read errors since last cleaned : Critical: 6 | Transient: 0
Write errors since last cleaned : Critical: 0 | Transient: 0
SCSI ID : Port 3, Bus 0, Target 3, Lun 0
Name : CERTANCE ULTRIUM 3 SCSI Sequential Device (JD00PEE)
Status : Cleaning
Library : Quantum Super Loader
Windows name for the drive : \\.\Tape2147483646
Drive type : CLEANER_CARTRIDGE, LTO_Ultrium
Drive serial number : JD00PEE
Last cleaned : 10/7/2011 2:20:57 PM
Read errors since last cleaned : Critical: 1 | Transient: 0
Write errors since last cleaned : Critical: 0 | Transient: 0
SCSI ID : Port 3, Bus 0, Target 3, Lun 0
Name : Quantum LTO 3 Tape Drive
Status : Idle
Library : Quantum LTO 3 Tape Drive
Windows name for the drive : \\.\Tape2147483646
Drive type : CLEANER_CARTRIDGE, LTO_Ultrium
Drive serial number : JD00PEE
Last cleaned : Not available
Read errors since last cleaned : Critical: 0 | Transient: 0
Write errors since last cleaned : Critical: 0 | Transient: 0
SCSI ID : Port 3, Bus 0, Target 3, Lun 0
Name : CERTANCE ULTRIUM 3 SCSI Sequential Device
Status : Idle
Library : CERTANCE ULTRIUM 3 SCSI Sequential Device
Windows name for the drive : \\.\Tape2147483646
Drive type : CLEANER_CARTRIDGE, LTO_Ultrium
Drive serial number : JD00PEE
Last cleaned : Not available
Read errors since last cleaned : Critical: 0 | Transient: 0
Write errors since last cleaned : Critical: 0 | Transient: 0
SCSI ID : Port 3, Bus 0, Target 3, Lun
I know some of these problems are caused by Windows originally using the Quantam drivers for the driver. I had replaced these with the native windows LTO.sys driver to improve performance. However I had never subsequently experienced the issues that i have suddenly started experiencing where the drive is simply not responding to any commands from DPM. I suspect DPM is picking the wrong device from the database but need some help on how to proceed from here.
I have backed up the DB and I have already modified all protection groups so they are no longer protected by the tape library. I have not deleted all the protected data though. So how do i proceed next?
Thanks