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cannot open SAN devices

 
Theodore Alexopulos
Occasional Advisor

cannot open SAN devices

Has any1 ever meet this:

Devices from SAN storage and tape are coming to HPUX, device files are made, but you cannot open the devices and write
7 REPLIES 7
Bill Costigan
Honored Contributor

Re: cannot open SAN devices

Are you having the same problem with tape and disk?

Does ioscan show hardware?

Can you run diskinfo on the raw files?

Some disk arrays will show the device on a path but will not allow access. Typically the path is on the non-active controller. I've seen this on the EVA and Clariion.

Is security on the LUN set so that the HBA has read and write access to the LUN?

Are you using the correct tape drive? (silly question, but I've seen confusion with multiple tape drives, tape mounted in drive 1 and device file seleced is for drive 2)
Theodore Alexopulos
Occasional Advisor

Re: cannot open SAN devices

ioscan returns devices ok
sam problem to tape and disks
diskinfo runs OK on raw disks
i didnt set ACLs on switch
Could possibly be HPUX patches?

I have L2000 HPUX 11 with IBM switch 2019 F16 (Brocade) and IBM FastT900
Bill Costigan
Honored Contributor

Re: cannot open SAN devices

Could be patches. But I don't know which ones.

The only problems that patches fixed for me was not seeing the devices and building the device files. Once I got past that, I never ran into any other problems.

Angus Crome
Honored Contributor

Re: cannot open SAN devices

Could also be the HBA device driver revision. You should check your Model number and version against the one on the latest Support Plus CD, or from the download site. Early revisions had all kinds of problems for just about all of the adapters.
There are 10 types of people in the world, those who understand binary and those who don't - Author Unknown
Tim Sanko
Trusted Contributor

Re: cannot open SAN devices

This is something we went through with our enterprise system backup servers.

First I removed the devices, rmsf -H 0/X/0 and all associated devices. some Devices you may have to "rm /dev/rmt/xxxxBEST0m" etc.

ioscan
insf

This creates the devices.

Then we reconfigure in netbackup. That is fine until someone changes the san...

A SAN/TAN fibre change forces us to reconfig completely.

Tim
Bill Costigan
Honored Contributor

Re: cannot open SAN devices

I had to use the -e option with insf.

e.g., insf -e

So, if insf doesn't work try it with the -e

Nixon_2
Occasional Advisor

Re: cannot open SAN devices

Hi

1. Apply latest LVM cumulative patches with help of HP support team.

2. which FC card do u have ? 1G / 2G ? because 2G by default will not get enable on 11.0. so try to apply latest driver

3. How did u connect the system with Array ??
Fabric or hub

Thanks & Regards
Nixon
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