The shared tape drives control are always on Down state

[sheriff_e47]

Hi All,

I have this 2 tape drives that always on state DOWN TLD, even if I repeatly perform "up path". I don't see any H/w failure there (SLConsole) either. Have anyone had the same issue like this? Btw, I'm using Tape Lib SL3000

HP.ULTRIUM5-SCSI.006

HP.ULTRIUM5-SCSI.007

(please see the capture )

Care to share anyone? Thank you

[Marianne]

Device mapping mismatch can cause this and is normally caused by lack of Persistent Binding. To fix this, you need to check make/model of hba in each media server, download the management GUI for hba's and use to implement Persistent Binding. Delete all devices and rerun device config wizard. Faulty drive can also cause this. Add VERBOSE entry to vm.conf and create bptm log folder on all media servers to troubleshoot. Restart NBU on all media servers after adding this entry. UP the drives on all media servers. Next time a drive is DOWN'ed by a media server, the reason will be logged in media server's OS System log.

[sheriff_e47]

Hi,

These messages are from one of the media servers:

May  9 21:54:55 myseccbi scsi: [ID 107833 kern.warning] WARNING: /pci@13,700000/SUNW,qlc@0/fp@0,0/st@w500104f000afce48,0 (st1):
May  9 21:54:55 myseccbi        transport rejected
May  9 21:54:55 myseccbi scsi: [ID 107833 kern.warning] WARNING: /pci@13,700000/SUNW,qlc@0/fp@0,0/st@w500104f000afce48,0 (st1):
May  9 21:54:55 myseccbi        transport rejected
May  9 21:54:55 myseccbi scsi: [ID 107833 kern.warning] WARNING: /pci@13,700000/SUNW,qlc@0/fp@0,0/st@w500104f000afce48,0 (st1):
May  9 21:54:55 myseccbi        transport rejected
May  9 21:54:55 myseccbi avrd[10006]: [ID 498531 daemon.error] user scsi ioctl() failed, may be timeout, errno = 5, I/O error
May  9 21:55:10 myseccbi scsi: [ID 107833 kern.warning] WARNING: /pci@13,700000/SUNW,qlc@0/fp@0,0/st@w500104f000afce48,0 (st1):
May  9 21:55:10 myseccbi        transport rejected
May  9 21:55:10 myseccbi scsi: [ID 107833 kern.warning] WARNING: /pci@13,700000/SUNW,qlc@0/fp@0,0/st@w500104f000afce48,0 (st1):
May  9 21:55:10 myseccbi        transport rejected
May  9 21:55:10 myseccbi scsi: [ID 107833 kern.warning] WARNING: /pci@13,700000/SUNW,qlc@0/fp@0,0/st@w500104f000afce48,0 (st1):
May  9 21:55:10 myseccbi        transport rejected
May  9 21:55:10 myseccbi avrd[10006]: [ID 498531 daemon.error] user scsi ioctl() failed, may be timeout, errno = 5, I/O error

It is hardware failure related issue?

[Nicolai · Accepted solution]

Likley - you got a SCSI transport issue for sure.

Fibrechannel issues or the tape drives dropped off the bus at  a time. You need to ensure the OS can see and talk to the drives before puting them in up status in Netbackup.

[sheriff_e47]

Hi,

Thanks for the help. I checked the tape drives fc connection, and it turned out to be inactive. So, I fixed that and refresh the I/O from OS, and they now appear in sgscan.  So, after reconfig devices from NBU, they are in TLD status now. Thanks a lot

Best Regards,

Sheriff