Boston Linux & Unix (BLU) Home | Calendar | Mail Lists | List Archives | Desktop SIG | Hardware Hacking SIG
Wiki | Flickr | PicasaWeb | Video | Maps & Directions | Installfests | Keysignings
Linux Cafe | Meeting Notes | Blog | Linux Links | Bling | About BLU

BLU Discuss list archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Discuss] Fibre Channel and CentOS 5 issues


   It sounds like a config/driver issue. If there was an arbitrated loop or
hardware issue you would most likely not see LUNs at all.
   Not any experience with CentOS, but this seems like issues we've had
with Linux (RHEL and Solaris, even Windows) before.
   Also haven't used Brocade HBA, but Emulex and QLogic. Still seems like
config/driver though.

with gratitude and in service,
Tony Koker

On Tue, Mar 6, 2012 at 1:19 PM, Jason Normand <jay at> wrote:

> We are working on setting up some new hardware for our db servers, but I am
> having trouble getting the Fibre Channel LUN recognized by CentOS 5.7.  We
> are running on an IBM x3550 with dual Brocade HBAs, and have them connected
> to an IBM DS3524 with dual controllers.  Each controller is direct attached
> to one HBA.  I am able to get Cent to see the LUN if i power cycle the
> controllers, however it will not see it after a system reboot.  The HBAs
> are recognized after reboot but rescanning the scsi bus does not help.
>  Only a power cycle on the controllers or a reset of the LUN will get Cent
> to recognize it.
> Now I have little experience with Fibre Channel and was looking for some
> pointers in the right direction.  Does this sound like a hardware issue or
> a Cent config/driver issue?
> Thanks
> Jason
> _______________________________________________
> Discuss mailing list
> Discuss at

BLU is a member of BostonUserGroups
BLU is a member of BostonUserGroups
We also thank MIT for the use of their facilities.

Valid HTML 4.01! Valid CSS!

Boston Linux & Unix /