SCSI Errors

james_nac · Guest

Hello All,

This may be a question for Dell or Commvault support, but I'm going to run it by you folks first to see if anyone has some advice. I am very new to commvault and tape libraries so the likelihood is high that I'm doing something wrong.

Windows Server 2003 x86
Simpana 8.0.0
Dell PowerEdge TL2000 connected via iSCSI to SAS bridge
Dell driver package R192496 installed
Device Manager shows:
IBM TotalStorage 3573 Tape Library, driver: Microsoft 5.2.3790.0
IBM ULT3580-TD4, driver: IBM Corporation, 6.1.8.9

I configured the library in Simpana. Everything looks ok and the tapes show up in the "Media By Location/Media In Library" view. If I try to do anything with the drive, such as unload it or verify media, I get SCSI reservation command errors such as:

Event Code: 32:260, Description: "Failed to mount medium from Slot [slot 1]. SCSI Operation: Open Drive Device. Reason: SCSI-2 Reservation Command to the Drive failed. Advice: Please make sure that drive supports SCSI-2 Reserve/Release Commands and that it's not reserved by any third-party application."

Any advice would be greatly appreciated.

Thanks,
James

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Mark Edwards · Guest

iSCSI to SAS Bridge?!?!Not sure any advice would be printable...

I would firstly shutdown all Commvault services and fully test the tape library with Dell provided diagnostic/test tool.

Once any issues have been identified and remediated, then turn on the Commvault services.

This should have been done by whoever commissioned the library.

mark

On Tue, Mar 9, 2010 at 03:24, james_nac <james_nac < at > yahoo.com ([email]james_nac < at > yahoo.com[/email])> wrote:

james_nac · Guest

Thanks for the suggestion. I found the IBM Tape Diagnostic Tool (ITDT) and it has no problems accessing the drive. It passes the tests with flying colors. That leads me to believe it's a Commvault configuration issue. Any ideas what might cause the drive reservations to fail such as trying to reserve it twice or something to that nature?

Thanks,
James

--- In commvault < at > yahoogroups.com ([email]commvault%40yahoogroups.com[/email]), Mark Edwards <mark.p.edwards < at > ...> wrote:

D. Frazer · Guest

Please run the scanscsi tool….scanscsi.exe >C:results.txt

Post the results

From: commvault < at > yahoogroups.com [mailto:commvault < at > yahoogroups.com] On Behalf Of james_nac
Sent: Tuesday, March 09, 2010 8:36 AM
To: commvault < at > yahoogroups.com
Subject: [commvault] Re: SCSI Errors

Thanks for the suggestion. I found the IBM Tape Diagnostic Tool (ITDT) and it has no problems accessing the drive. It passes the tests with flying colors. That leads me to believe it's a Commvault configuration issue. Any ideas what might cause the drive reservations to fail such as trying to reserve it twice or something to that nature?

Thanks,
James

--- In commvault < at > yahoogroups.com ([email]commvault%40yahoogroups.com[/email]), Mark Edwards <mark.p.edwards < at > ...> wrote:

catfish · Joined: 22 Jul 2008 Posts: 13

Try disabling the medium changer in device manager of your media agent. Run your unload/mount test. You also may need to run Library and Drive config tool again.

See if that works.

--- On Tue, 3/9/10, D. Frazer <dfrazer007 < at > msn.com> wrote:

james_nac · Guest

Disabling the medium changer does not affect the SCSI reservation errors.

The results of the scanscsitool are below.

Thanks again for the replies.

Usage: scanscsitool [option1|option2|...]
Host options:
-h <hostname> : Galaxy MediaAgent name
-i <instanceName> : Galaxy Instance name

Auto config options for MediaAgent(with '-h' option):
-n <libraryName> : Library Alias Name, if set, only configure the matched library
-l <libraryId> : Library ID, if libraryId = 0, all detected libraries will be configured
-s <libSerial#> : Library serial number, if not set, all detected libraries will be configured
-a <magLibraryName> : Magnetic Library Alias Name, if set, only configure the matched magnetic library
-m <magLibraryId> : Magnetic Library ID, if not set, a new Magnetic Library will be configured
-f <mountpath> : Mount path
-u <username> : User name for network mount path
-p <password> : Password for network mount path

Please wait...
*** SCSI Information ***

** Library Information
Scsi Port : Scsi1
Base Bus : 0
Base Target : 6
Base Lun : 0
Vendor : IBM
Model : 3573-TL
Firmware : 7.40
SerialNumber : 00X2U78L2110_LL0
WWN :
Drive Count : 1
Base Address : 256
Access Path : scsidev < at > Scsi1:0.6.0
Accessible : Yes

Drive1 Identifier: IBM ULT3580-TD4 1310182511

** Disk Drive Information

Scsi Port : Scsi0
Base Bus : 0
Base Target : 0
Base Lun : 0
Vendor : XEN
Model : PV DISK
Firmware : 0000
SerialNumber :
WWN :
Access Path : \.PHYSICALDRIVE0
DeviceNumber : -1
Accessible : No

** Disk Drive Information

Scsi Port : Scsi1
Base Bus : 0
Base Target : 0
Base Lun : 0
Vendor : PIVOT3
Model : RAIGE VOLUME
Firmware : 0402
SerialNumber :
WWN :
Access Path : \.PHYSICALDRIVE1
DeviceNumber : -1
Accessible : No

** Disk Drive Information

Scsi Port : Scsi1
Base Bus : 0
Base Target : 1
Base Lun : 0
Vendor : PIVOT3
Model : RAIGE VOLUME
Firmware : 0402
SerialNumber :
WWN :
Access Path : \.PHYSICALDRIVE2
DeviceNumber : -1
Accessible : No

** Disk Drive Information

Scsi Port : Scsi1
Base Bus : 0
Base Target : 2
Base Lun : 0
Vendor : PIVOT3
Model : RAIGE VOLUME
Firmware : 0402
SerialNumber :
WWN :
Access Path : \.PHYSICALDRIVE3
DeviceNumber : -1
Accessible : No

** Disk Drive Information

Scsi Port : Scsi1
Base Bus : 0
Base Target : 3
Base Lun : 0
Vendor : PIVOT3
Model : RAIGE VOLUME
Firmware : 0402
SerialNumber :
WWN :
Access Path : \.PHYSICALDRIVE4
DeviceNumber : -1
Accessible : No

** Disk Drive Information

Scsi Port : Scsi1
Base Bus : 0
Base Target : 4
Base Lun : 0
Vendor : PIVOT3
Model : RAIGE VOLUME
Firmware : 0402
SerialNumber :
WWN :
Access Path : \.PHYSICALDRIVE5
DeviceNumber : -1
Accessible : No

** Tape Drive Information

Scsi Port : Scsi1
Base Bus : 0
Base Target : 5
Base Lun : 0
Vendor : IBM
Model : ULT3580-TD4
Firmware : 97F0
SerialNumber : 1310182511
WWN : 5000e11133f03001
Access Path : \.Tape0
DeviceNumber : 8540432
Accessible : Yes

** Disk/Volume Information

Disk : \.PHYSICALDRIVE0
Vendor : XEN
Model : PV DISK
Firmware : 0000
SerialNumber :
Volume Path : \?Volume{e6938b89-14f6-11df-8ed6-806e6f6e6963}
Volume : CVVMVOL
Drive Letter : C:
Volume Serial: 9097ECB2
File System : NTFS
Connection : SCSI
Type : Fixed
Disk Size(MB): 81688

** Disk/Volume Information

Disk : \.PHYSICALDRIVE1
Vendor : PIVOT3
Model : RAIGE VOLUME
Firmware : 0402
SerialNumber : 600176c36377fba88dd9fadc4861125
Volume Path : \?Volume{d31246b0-fc13-424b-8fc9-32164e949ab7}
Volume : CVDBVOL
Drive Letter : D:
Volume Serial: FC53B1EF
File System : NTFS
Connection : iSCSI
Type : Fixed
Disk Size(MB): 102271

** Disk/Volume Information

Disk : \.PHYSICALDRIVE2
Vendor : PIVOT3
Model : RAIGE VOLUME
Firmware : 0402
SerialNumber : 600176c367fb52313bb854af4861125
Volume Path : \?Volume{d1afe1c7-6266-4fe0-a19b-e7eafde6d8b6}
Volume : CVDDVOL
Drive Letter : H:
Volume Serial: E8C24D9A
File System : NTFS
Connection : iSCSI
Type : Fixed
Disk Size(MB): 1048447

** Disk/Volume Information

Disk : \.PHYSICALDRIVE3
Vendor : PIVOT3
Model : RAIGE VOLUME
Firmware : 0402
SerialNumber : 600176c39a5f82874ca90af44861125
Volume Path : \?Volume{5999dba9-70ab-4c22-9ef8-7c4dd01288b8}
Volume : CVDRVOL
Drive Letter : E:
Volume Serial: 78760F95
File System : NTFS
Connection : iSCSI
Type : Fixed
Disk Size(MB): 524159

** Disk/Volume Information

Disk : \.PHYSICALDRIVE4
Vendor : PIVOT3
Model : RAIGE VOLUME
Firmware : 0402
SerialNumber : 600176c3af257cea7bf8d0274861125
Volume Path : \?Volume{913f9f01-fe00-463d-b20d-b7bf9b5404ad}
Volume : CVMCVOL
Drive Letter : F:
Volume Serial: 7889999C
File System : NTFS
Connection : iSCSI
Type : Fixed
Disk Size(MB): 102271

** Disk/Volume Information

Disk : \.PHYSICALDRIVE5
Vendor : PIVOT3
Model : RAIGE VOLUME
Firmware : 0402
SerialNumber : 600176c320b94c09010deb584861125
Volume Path : \?Volume{f2f225db-99de-494b-a0e7-0fa51b39ae66}
Volume : CVL1VOL
Drive Letter : G:
Volume Serial: E0AB2EE6
File System : NTFS
Connection : iSCSI
Type : Fixed
Disk Size(MB): 4194175

*** End Information ***

--- In commvault < at > yahoogroups.com ([email]commvault%40yahoogroups.com[/email]), Calvin Wong <calvinw < at > ...> wrote:

Rowan Gillson · Guest

James,

I'd recommend a read of the following MS KB article http://support.microsoft.com/kb/842411

[/url]You might need to disable TUR polling as it may (and from past experience has) resolve this type of issue.

Regards

Rowan

On 11/03/2010, at 6:16 AM, james_nac wrote:

catfish · Joined: 22 Jul 2008 Posts: 13

To me everything looks good. Only thing I would look at is making sure you do not have other backup applications also loaded on that media agent.

Also make sure Removable Storage is disabled.

Any of those services can interfere with reservations on your SCSI chain.

--- On Wed, 3/10/10, james_nac <james_nac < at > yahoo.com> wrote:

Mark Edwards · Guest

hey Rowan.TUR can be an issue with fabric attached libraries - interesting that it also may affect iSCSI too.
m

On Thu, Mar 11, 2010 at 11:00, Rowan Gillson <r.gillson < at > gmail.com ([email]r.gillson < at > gmail.com[/email])> wrote:

james_nac · Guest

I ended up calling support. We got around the scsi errors. Support disabled the troublesome scsi commands. It's not in front of me right now, but I think it was on the library's drive properties tab.

I'm calling this one resolved. Thanks very much for all the input!

James

--- In commvault < at > yahoogroups.com ([email]commvault%40yahoogroups.com[/email]), Mark Edwards <mark.p.edwards < at > ...> wrote:

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