Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

What is NPIV do in storage

Posted on 2012-04-08
2
Medium Priority
?
489 Views
Last Modified: 2012-04-15
I have some vios server , I configured the port as npiv enabled but i want to understand this npiv process . What is this doing on the port can you please tell how it works

Thanks
0
Comment
Question by:gutenmorgen
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 68

Accepted Solution

by:
woolmilkporc earned 2000 total points
ID: 37822999
Guten Morgen, gutenmorgen!

NPIV is "N-Port ID Virtualization" and has as such nothing to do with VIOS.

The basic concept is that LPARS can share one physical Fibre Channel port by getting logical ports assigned to them. These logical ports are served by the single physical port and appear to the LPARs as (special) SAN adapters.

The external WWN of the physical port remains the same, but there is an additional WWN (unique per LPAR) contained in the FC payload data, which can be seen and evaluated by NPIV-aware SAN switches on NPIV-enabled ports.

This concept has been created to make SAN ports available to LPARS serving devices which can't go over VIOS-VSCSI, e.g. tapes, and to overcome the need of "wasting" a whole physical adapter for this purpose.

You can also assign an NPIV logical port to a VIOS to then use this port for serving VHOST/VSCSI connections to the LPARS.

On the other hand, you can assign the physical NPIV adapter to the VIOS and use it for serving VHOST/VSCSI connections to the LPARS,
but this will deprive you from using logical ports on this adapter. In this scenario the SAN switch does not have to be NPPIV-aware, and the SAN port does not have to be NPIV-enabled.


wmp
0
 

Author Closing Comment

by:gutenmorgen
ID: 37848861
Thanks
0

Featured Post

On Demand Webinar: Networking for the Cloud Era

Did you know SD-WANs can improve network connectivity? Check out this webinar to learn how an SD-WAN simplified, one-click tool can help you migrate and manage data in the cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article is an update and follow-up of my previous article:   Storage 101: common concepts in the IT enterprise storage This time, I expand on more frequently used storage concepts.
Each year, investment in cloud platforms grows more than 20% (https://www.immun.io/hubfs/Immunio_2016/Content/Marketing/Cloud-Security-Report-2016.pdf?submissionGuid=a8d80a00-6fee-4b85-81db-a4e28f681762) as an increasing number of companies begin to…
This tutorial will walk an individual through the process of installing the necessary services and then configuring a Windows Server 2012 system as an iSCSI target. To install the necessary roles, go to Server Manager, and select Add Roles and Featu…
This Micro Tutorial will teach you how to reformat your flash drive. Sometimes your flash drive may have issues carrying files so this will completely restore it to manufacturing settings. Make sure to backup all files before reformatting. This w…
Suggested Courses

670 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question