How to do Multipathing on HP-UX 11iV2

Hi,

I wonder how  to do multipath on hpux. do I need to install a package?

Williams225System AdministatorAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Duncan MeyersCommented:
You need multipathing software. You can use a SAN vendor-specific package like EMC PowerPath or Symantec's Storage Foundations.
tfewsterCommented:
HP-UX 11iv2 has built-in multipathing for failover, but it does not load-balance - For that you need additional software as meyersd suggested.

Simply vgextend-ing the volume group to add the alternate path to the disk (LUN) into the VG enables failover.  LVM recognises that it's the same disk and marks it as an alternate link.

Manual load balancing, by specifying the primary channel to be used for each LUN, can be done - See http://www.theunixzone.com/2009/12/18/simple-load-balancing-with-pv-links-hpux/ for an example

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Duncan MeyersCommented:
It's been a few years since I looked at HP-UX. Don't HP ship pvlinks anymore?
tfewsterCommented:
As far back as I can recall, pvlinks has been part of LVM - though it's confusing that it gets talked about as a product in its own right.

HP-UX 11iv3 has low-level native multipathing that includes load balancing; Each disk/LUN gets a new "persistent device special file" that is path-independent, so LVM uses that device file and the concept of pvlinks within LVM disappears.

http://administratosphere.wordpress.com/2008/02/14/multipathing-on-hp-ux-lvm-vs-vxvm/
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Unix OS

From novice to tech pro — start learning today.