Solved

AX150 loop vs point to point

Posted on 2010-11-14
5
380 Views
Last Modified: 2012-08-13
Why does point to point not work when connected directly from a W2K8 server with a QLogic QLA2342 card to an AX150?  It only works in 'Loop'.  Why is this?
0
Comment
Question by:B1izzard
  • 3
  • 2
5 Comments
 
LVL 30

Expert Comment

by:Duncan Meyers
ID: 34133434
That's very odd. It *should* work point-to-point. It doesn't really matter, though, as you're connecting directly to the AX150
0
 

Author Comment

by:B1izzard
ID: 34133679
Do you know offhand what the technical difference is between the 2 when connected directly?  I'm just curious what would cause the green LED on the HBA to turn off when booting via point to point, where it turns green when booting in loop.
0
 
LVL 30

Accepted Solution

by:
Duncan Meyers earned 500 total points
ID: 34133914
The green LED indicates that the HBA driver is loaded and that it has connected to the array or SAN fabric. For a point-to-point or fabric connection, this is a FLOGI (Fabric LOG In). For an arbitrated loop, it's a LIP primitive. I'd say that the HBA doesn't initiate a FLOGI until the driver is loaded whereas a LIPis probably handled out of firmware.
0
 

Author Closing Comment

by:B1izzard
ID: 34133918
Thank you.
0
 
LVL 30

Expert Comment

by:Duncan Meyers
ID: 34133931
Thanks!
0

Featured Post

New My Cloud Pro Series - organize everything!

With space to keep virtually everything, the My Cloud Pro Series offers your team the network storage to edit, save and share production files from anywhere with an internet connection. Compatible with both Mac and PC, you're able to protect your content regardless of OS.

Question has a verified solution.

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

We wanted to provide an in-depth explanation of the Ping Node offering clarifications on its function and usage. Incorrect Ping Node configuration and functionality can cause problems with HA clusters. The importance of this article is critical for …
Lets start to have a small explanation what is VAAI(vStorage API for Array Integration ) and what are the benefits using it. VAAI is an API framework in VMware that enable some Storage tasks. It first presented in ESXi 4.1, but only after 5.x sup…
This video teaches viewers how to encrypt an external drive that requires a password to read and edit the drive. All tasks are done in Disk Utility. Plug in the external drive you wish to encrypt: Make sure all previous data on the drive has been …
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…

920 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

Need Help in Real-Time?

Connect with top rated Experts

14 Experts available now in Live!

Get 1:1 Help Now