Problem to configure drives (No passthru access to this drive)

[GuilhermeBueno]

Hi,

I'm having problems to configure my tapes on my Media Server Solaris 10 using Netbackup 7.1.

Master Server: Netbackup 7.1 for Linux (Red Hat 5)

Media Server: Netbackup 7.1 for Solaris (Solaris 10)

Tapes: LTO-4 with SSO.

I upgrated my HBA drivers today and after that I can't run backup normally.

I found one TECH NOTE about that, but I'm not confortable to execute that http://www.symantec.com/docs/TECH61591.

Please, someone can help me wth this problem?

Can I do what this Tech Note suggested?

Thanks

Guilherme

[Marianne]

Please share output of /usr/opemv/volmgr/bin/sgscan on Solaris media server.

It is quite normal on Solaris media servers to need to rebuild the sg driver (the NBU pass-thru driver) after changes are made at OS/SAN/hardware level.

First of all - verify that ALL devices in /dev/rmt are valid.

Does 'ls -l /dev/rmt/*cbn |wc -l ' correspond with the number of physical tapes drives?

If not, cleanup device tree and start from scratch:

cd /dev/rmt
rm *
devfsadm
ls -l *cbn       (verify that correct number of drives are seen; make a note of targets and luns)

Rebuild sg driver as follows:

cd /usr/openv/volmgr/bin/driver
/usr/openv/volmgr/bin/sg.build all -mt <targets> -ml <luns>


/usr/bin/rm -f /kernel/drv/sg.conf
/usr/openv/volmgr/bin/driver/sg.install

/usr/openv/volmgr/bin/sgscan tape

[mph999]

Don't follow the technote.

Rebuilding the sgdriver should not be too hard, mail me if you need help. (martin<underscore>holt@symantec.com)  

It might be that the drive is configured via wwn as opposed to lun and target, in which case you need only run sgbuild all

As marianne shows, cd to the  /usr/openv/volmgr/bin/driver

dir before running the sgbuild command (else the sg.build/ links file are created in the wrong dir.

I would copy the existing sg.build/ links files first.  Before  you can run sg.install, you will have to move the file /kernel/drv/sg.conf

I also unload the sg driver, not sure if you have to do this, I will check

Please note, I am quite busy tomorrow, so I may only be able to send some details via email.

Please send me contents of:

/usr/openv/volmgr/bin/driver/sg.conf and sg.links

cfgadm -al -o show_FCP_dev

ls -al /dev/rmt/0*

/usr/openv/volmgr/bin/scan

PLease also ensure that the os can see the drive, it has a /dev/rmt file(s) and you know which drive it is (if you have more than one) referring to it's serial number and wwn.

Martin

[Marianne]

Hi Guilherme

Hopefully you are 'up and running' by now?