Adding V-class servers to existing tape SAN

[Midrange]

We are attempting to configure 4 V-class servers onto our tape SAN, configuration is A5158A Tachyon Cards, HP-UX 11.0, Brocade Silkworm 12000 and 2 x IBM3590 tape drives.

Problem we are currently seeing is that we can see the 2 drives wwn's with fcmsutil however ioscan reports NO_HW at the HW Path, the fibre has definately logged into the switch. Any advice would be greatfully received.

[Duncan Edmonstone]

Try this:

1. Run 'lssf /dev/rmt/*'
2. remove any entries that appear with a hardware path of '???' using rmsf /dev/rmt/whatever
3. Run insf -e

Re-run ioscan - can you see them now?

HTH

Duncan

[Duncan Edmonstone]

... I also note some very old stape patches to support IBM 3590 on V class - I'd make sure you get the latest stape patch, which for 11.00 is PHKL_27303

HTH

Duncan

[Midrange]

Thanks for your help Duncan, there are several rmt devices with ??? as the address, i'd forgotten all about the lssf command thanks for that! we will re-run this this afternoon. The current patch level is PHKL_28216 Cumulative STAPE.

One other item is there an easy way of establishing which tape device belongs to which WWN????? or should I open a seperate thread for this! Bonus points on offer!!

[Duncan Edmonstone]

The thing is, that unlike other OS's like Solaris or Tru64, HPUX doesn't track SAN devices by WWN, but by FCID. On a Brocade switch that means that the hardware path is governed by which switch the tape drives are plugged into and which port the tape drives are plugged into.

Have a look at my posts here for an explanation:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=905750

I'm talking here about disk, but the same is true for tapes.

HTH

Duncan