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LTO 4 drive not detecting in the HPUX server

Darren Poh_1
Frequent Advisor

LTO 4 drive not detecting in the HPUX server

Hi,

I am facing a strange problem. I had a new MSL 2024 library (LTO4 drive) connecting to my HPUX server. I am using a direct FC connection and i cannot see the tape in the ioscan. The HBA is claimed and no tape device is detected. Then i saw in the web console on the MSL, it is show the "Port status: no link", but the port speed is showing 2 GB and port type is showing loop.

I changed port B, it is the same. I had upgraded the firmware of the drive to the latest H58W.


Can anyone help?
4 REPLIES
Torsten.
Acclaimed Contributor

Re: LTO 4 drive not detecting in the HPUX server

No link, no light.

Check if you have a bad port, HBA or cable.

Hope this helps!
Regards
Torsten.

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Darren Poh_1
Frequent Advisor

Re: LTO 4 drive not detecting in the HPUX server

the strange thing is that there is led.. it is able to negitiate the speed and port type. the drive is showing 2GBp and port type is loop.
Torsten.
Acclaimed Contributor

Re: LTO 4 drive not detecting in the HPUX server

What does the server say?

example:

# fcmsutil /dev/fcd0

Hope this helps!
Regards
Torsten.

__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.

__________________________________________________
No support by private messages. Please ask the forum!

If you feel this was helpful please click the KUDOS! thumb below!   
Bruno Policarpo
Occasional Advisor

Re: LTO 4 drive not detecting in the HPUX server

I had a similar problem. This is what Iâ ve done to resolve the problem.

Today I was upgrading FW in the LTO4 drives (H58W), and after the FW process, the systems weren't able to see the library.
I notice that all the LTO-4 FC ports were configured to 1GBs/loop mode. Forcing to 4 Gbs in the MSL didn't change nothing. The SAN switch ports connecting to the MSL were also forced to Fabric 4 Gbps.
To resolve this problem, I had to configure both MSL and SAN switches ports to auto (topology and speed). After that, the speed was 4gbps/Fabric (according to san switchs).
Even forcing the SAN switches ports to 4Gbps/Fabric, the MSL will continue to work without problems.
After this I reboot the library, and the link continue in 4 Gbps/ Fabric mode.

The last test will be forcing the MSL ports to 4/Fabric mode to see what happens. Results after the lunch (I´m hungry ;) )

Hope itâ s help. ï