rebuilding tape drive device files

[Aaron Sheard]

hello ppl; a quick question to refresh my memory. I have an L3000 with 5 lto drives connected over 3 scsi to fiber bridges to 3 fiber cards in the back of the server. I use Veritas netbackup 3.2 with this hardware. The device files seem to be messed up and i remember in the past i used a command to rebuild them. it was 2 commands, one is 'insf -e' but i cant remember the other one. Has anyone had to do this? I'd like to delete the files and rebuild them. at this point, ioscan -fnC tape shows nothing.

[Mark Grant]

insf -r -C tape should do the trick or just plain insf -e -H hardware path. Not sure you could use any other command, except perhaps shudown -r 0 :)

[Mark Grant]

Sorry, insf -e -C tape not -r!

[Pete Randall]

Aaron,

"insf -e" should be enough. If you want to be specific about the names, I've attached a procedure for creating tape device files.


Pete

[Aaron Sheard]

also im getting this message in syslog:

Sep 15 11:16:56 xbak000 vmunix: SCSI: bp: 000000004c104800
Sep 15 11:16:56 vmunix: dev: cd0681c0
Sep 15 11:16:56 vmunix: cdb: 12 01 80 00 ff 00
Sep 15 11:16:56 vmunix: residual: ff
Sep 15 11:16:56 vmunix: status: (400) None -- Incomplete

not sure what it means. all i know is before i turned everything off on saturday i could run ioscan -fnC tape and it would list 5 drives, now it lists none. I remembered this happened once before and i ran insf -e and one other command that i cant remember to recreate the files properly.

[Zigor Buruaga]

Hi,

Take a look at these links:

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x7a49e3084f79c84aa7f24fb6c5c9095c,00.html
http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x00697bb04b5cd611abdb0090277a778c,00.html

Kind regards,
Zigor

[Mark Grant]

Sorry,

Misunderstood here!

If ioscan -fnC tape shows nothing at all then there is something wrong at the SAN level probably. Either a zoning issue in the switches or the scsi-fibre bridges.

What changes did you make before encountering the problem?

Having said this, we have lost tape drives after making changes within the SAN and got them back by kicking our HBA's thus.

fcmsutil /dev/td* devstat all | grep Nport (where td is the your HBA)
This will display port Nport id's

fcmsutil /dev/td* echo XXXX (0x610413 for example)where XXXX is each individual Nport. Find the one which says "Data came back intact" and note it's Nportid

fcmsutil /dev/td* replace_dsk Nport id noted above

[leyearn]

did you have the everything off but rebooted the system?
if it was
you should turn everything on and use
the command:
#insf -e
then you can use the command
#iosan -fnC tape
to check it!