Re: qmail-ldap and GFS

Hi,

I don´t use GFS either NFS or GFS.

I have one Hardware balancer with three nodes-MTAS. Each node has one SAN partition mounted but all nodes see all partitions, so, each node has presented all partitions.

The idea is that if a node crashes, the other node assumes the identity of the fallen and mount his SAN partition with /var/qmail/control/ldapclusterhost attribute.

Obviously I have scripts that automate all that.

Regards.


 ----------------------------------------------------------------------

Carlos García Gómez
Sistemas de Información y Comunicaciones
Fundación Integra. http://www.f-integra.org
 
Teléfono: +34 968 355161
Fax:      +34 968 355131
Correo:   [email protected]
 
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  ----- Original Message ----- 
  From: Ibrahim Harrani 
  To: [email protected] 
  Sent: Wednesday, November 03, 2010 4:25 PM
  Subject: qmail-ldap and GFS


  Hi,

  Currently, my domains and users are distributed to different mailhosts in my qmail ldap cluster.
  In this setup, If I one of the mailhost is down, the users can't access to mailbox on this server.
  To setup a redundant system,  I would like to keep mailbox on GFS file system with multiple backends.
  All backends will share the same GFS partition. There will be one mailhost entry in openldap entries and
  load balancer to distrube pop3/imap and smtp connections to backends. If one of the backend is down, this will not effect
  the users.

  But, I have some doubts about locks and I/O issues. Can you please share your experience about this kind of setup?

  Thanks