MSL 4048 Tape library - FC connectivity issue

[victory_tb]

Hi everybody,

I have a MSL 4048 Tape library with 2 drives connected to a SAN switch module on Blade HP C7000. My Netbackup server [windows 2003 R2 sp2] can only recognises Tape library if I connect them directly vi FC, but not via SAN switch. Rediculously that I had connectivity between Netbackup server & Tape library before [with correct zoning and via SAN switch].

The current issue arises when I reinstall a fresh system on the same hardware! I google about the similar problems but they didn't help me to solve. Could you pls give me some suggestion?

Vic

[Prokopets]

Haven't you upgraded firmware on tape or driver versions on NetBackup server?

[Eemans Dany · Accepted solution]

Hi,

Can you check if your connection on the library is set to switched fabric mode and not in loop.
Also check if the zoning is not on wwn based zoning. If you reinstalled / changed server it is possible the wwn has changed somewhere.

Dany

[victory_tb]

Hi,

I solved the problem. It's because of zoning issue. But I don't know why with the same zoning configuration, it works for the previous OS installation, not the current installation? I have to create a new zoning configuration same as the old one but different name then connectivity is ok.

Thanks for your comment.

[Prokopets]

Maybe your zoning was created, but not applied? I mean, zone that contains tape drive and server, was not member of configuration.

[victory_tb]

I solved the problem. It's because of zoning issue. But I don't know why with the same zoning configuration, it works for the previous OS installation, not the current installation? I have to create a new zoning configuration same as the old one but different name then connectivity is ok.

Thanks for your comment.