Solved

Qlogic hba driver: FC Port information format

Posted on 2010-09-09
9
703 Views
Last Modified: 2012-05-10
Hello, experts !

Could any one point to what is the format of the qla drive entry in the /proc/scsi directory:

FC Port Information:
scsi-qla1-port-0=50060160bce02a1c:  500601623ce02a1c:161f00:81;

I need to know what two last fields mean, please

>> 161f00:81

what is "161f00"
and what is "81"

Thanks a lot in advance !



0
Comment
Question by:polundra
  • 5
  • 4
9 Comments
 
LVL 30

Expert Comment

by:Duncan Meyers
ID: 33634442
161f00 is the FCID - it's assigned by the FC fabric (SAN switch in this case).

81 is probably the LUN number - but that's a guess.
0
 
LVL 30

Expert Comment

by:Duncan Meyers
ID: 33634450
It looks like you're connected to a Symmetrix or DMX, so I'd be moderately confident in the guess that 81 is the LUN
0
 

Author Comment

by:polundra
ID: 33634514
>> 161f00 is the FCID - it's assigned by the FC fabric (SAN switch in this case).

This could be it, do you have a reference to the format, please ?

>> 81 is probably the LUN number - but that's a guess.

I do not think so. there is not lun 81 presented from storage ...
0
What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

 
LVL 30

Accepted Solution

by:
Duncan Meyers earned 500 total points
ID: 33634976
it is made up of FC switch domain ID, area ID and switch port number and  it's assigned by the fabric name server when the node logs in. The domain and area IDs will vary from switch manufacturer to switch manufacturer.
0
 
LVL 30

Expert Comment

by:Duncan Meyers
ID: 33634981
Is there a LUN number 129?
0
 

Author Comment

by:polundra
ID: 33635006
there is no lun 129
0
 

Author Comment

by:polundra
ID: 33635100
Ok, found it in the source code. 81 is loop id...

Thanks for your help, meyersd !


   2600       /* Print out the port Information */
   2601       t = 0;
   2602       fcport = NULL;
   2603       copy_info(&info, "\nFC Port Information:\n");
   2604       list_for_each_entry(fcport, &ha->fcports, list) {
   2605
   2606             copy_info(&info,
   2607                   "scsi-qla%ld-port-%d="
   2608                   "%02x%02x%02x%02x%02x%02x%02x%02x:"
   2609                   "%02x%02x%02x%02x%02x%02x%02x%02x:"
   2610                   "%02x%02x%02x:%x;\n",
   2611                   ha->instance, t,
   2612                   fcport->node_name[0], fcport->node_name[1],
   2613                   fcport->node_name[2], fcport->node_name[3],
   2614                   fcport->node_name[4], fcport->node_name[5],
   2615                   fcport->node_name[6], fcport->node_name[7],
   2616                   fcport->port_name[0], fcport->port_name[1],
   2617                   fcport->port_name[2], fcport->port_name[3],
   2618                   fcport->port_name[4], fcport->port_name[5],
   2619                   fcport->port_name[6], fcport->port_name[7],
   2620                   fcport->d_id.b.domain, fcport->d_id.b.area,
   2621                   fcport->d_id.b.al_pa, fcport->loop_id);
   2622
   2623             t++;
   2624       }
0
 

Author Closing Comment

by:polundra
ID: 33635110
partially answered
0
 
LVL 30

Expert Comment

by:Duncan Meyers
ID: 33635548
No worries. Glad I could help.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

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.
Create your own, high-performance VM backup appliance by installing NAKIVO Backup & Replication directly onto a Synology NAS!
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
This demo shows you how to set up the containerized NetScaler CPX with NetScaler Management and Analytics System in a non-routable Mesos/Marathon environment for use with Micro-Services applications.

777 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