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тАО01-10-2011 07:06 AM
тАО01-10-2011 07:06 AM
Pathing problem with NetApp
We have 2 11.31 boxes connected to a NetApp in a SAN config with 2 FC switches with 8 paths to each LUN created on the NA (4 paths per switch). I created the LUN's on the NA and then used agile naming to refer to the disk/paths. That is, when I added the disk to the VG, I added it via agile naming to minimize management (1 disk path listed (/dev/disk/disk123 versus 8 paths for each LUN (/dev/dsk/c1t1d1, etc.).
Anyway, now when we look at the pathing via a NA utility (sanlun), 4 paths are marked as primary and 4 are marked as alternate which makes sense. The problem is, 2 of the primary paths should be alternate and 2 of the alternates should be primary due to the way the cabling is laid out on the switches.
Has anyone used sanlun (a NA utility) or have any suggestions on how I can fix these paths so they are correct?
Points will be given!
Thanks,
-Gonzo
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тАО01-10-2011 07:50 AM
тАО01-10-2011 07:50 AM
Re: Pathing problem with NetApp
sanlun lun show -p
show?
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тАО01-10-2011 07:53 AM
тАО01-10-2011 07:53 AM
Re: Pathing problem with NetApp
I'd recommend you check with your SAN person...
Regards,
Rita
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тАО01-10-2011 07:59 AM
тАО01-10-2011 07:59 AM
Re: Pathing problem with NetApp
Two utilities there would be of interest to you: ntap_config_paths (for PV Link vg's) and enable_ontap_pvlinks (for agile disks, HP-UX 11.31).
Cheers!
We'ce a new NetApp filer but we've slated it to be used for vSPhere/ESX environments at this time.
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тАО01-10-2011 08:45 AM
тАО01-10-2011 08:45 AM
Re: Pathing problem with NetApp
sanlun shows primary/alternate paths as I described. That's where I got my info to post the question! I'm new to the NA world as we've always used HP arrays in the past, so I'm just figuring out the utilities to manage our new NA. Anyway, sanlun and snapdrive are the only ones I've really used - so far...
We do have the host utilities loaded. I just looked at the man pages for the two utilities you listed (ntap_config_paths and enable_ontap_pvlinks) and they are the solution I am looking for I believe. It will take me some time to figure out how to use them exactly, but they appear to be the solution as they address the exact problem I described.
I'll post back what I find so others can use this info as well.
Thanks so much.
-Gonzo
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тАО01-10-2011 08:49 AM
тАО01-10-2011 08:49 AM
Re: Pathing problem with NetApp
Alzhy is genderless (for now).