-----BEGIN PGP SIGNED MESSAGE----- We're using LVS to do load balancing. Instead of NFS, we're using Opengfs. We have two mail servers and two mysql servers. The sql servers are both r/w in a two-way replica.
As previously stated, the queue MUST BE local. Buon lavoro Andrea Cerrito IT Manager +39. 0744. 5441. 1 +39. 348. 4912. 581 www.centromultimediale.tv Vincitore del 35° Smau Industrial Design ICOGRADA Excellence Award 2002 www.centromultimediale.it www.etad.it == /history Due giovani e uno meno giovane si trovano proiettati a causa di una serie di fatalita' in un mondo parallelo dove non esistono le leggi del business ma solo follia e dolore. > -----Original Message----- > From: Scott Helms [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, December 31, 2002 2:28 PM > To: John Runnels; Duane Wylie; [EMAIL PROTECTED] > Subject: Re: [vchkpw] vpopmail clustering examples > > > Duane, > > > No the queues run on local disk rather than on the NFS. > > Scott > ----- Original Message ----- > From: "John Runnels" <[EMAIL PROTECTED]> > To: "Scott Helms" <[EMAIL PROTECTED]>; "Duane Wylie" > <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> > Sent: Monday, December 30, 2002 4:38 PM > Subject: Re: [vchkpw] vpopmail clustering examples > > > > Scott do you also mount the queue dir's from the netapp ??? > > > > > > ----- Original Message ----- > > From: "Scott Helms" <[EMAIL PROTECTED]> > > To: "Duane Wylie" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> > > Sent: Monday, December 30, 2002 11:16 AM > > Subject: Re: [vchkpw] vpopmail clustering examples > > > > > > > Duane, > > > > > > We use Alteons to do the load balancing and a pair of > NetApp F810c's > > for > > > the HA NFS system. I won't include any details since its > easy enough to > > get > > > the data from the guys at Netapp. We run 7 qmail/vpopmail > servers with > 3 > > > mysql servers (one master and 2 slaves that are read only). > > > > > > Scott > > > ----- Original Message ----- > > > From: "Duane Wylie" <[EMAIL PROTECTED]> > > > To: <[EMAIL PROTECTED]> > > > Sent: Monday, December 30, 2002 1:41 PM > > > Subject: RE: [vchkpw] vpopmail clustering examples > > > > > > > > > > Sorry 'bout sending that last message as 'Super-User'... > > > > > > > > We're using F5's load balancer and it's been working great > for us. It > > has > > > > similar features as the Foundry switch you mentioned (and > the service > > > > monitoring is great!). > > > > > > > > The main worry I have at this point is the NFS server. Even > > > > though > the > > > file > > > > system in question is RAID 5, and is in a separate disk > > > > enclosure, I > > don't > > > > like having that one NFS server as a single point of failure. > > > > > > > > Is anyone using some sort of HA storage solution? If so, > > > > care to > share > > > > details? > > > > > > > > Thanks, > > > > Duane Wylie > > > > > > > > -----Original Message----- > > > > From: Andre Fortin [mailto:[EMAIL PROTECTED]] > > > > Sent: Monday, December 30, 2002 11:53 AM > > > > To: [EMAIL PROTECTED] > > > > Subject: RE: [vchkpw] vpopmail clustering examples > > > > > > > > > > > > We have a very similar set up. We have a third machine as > > > > the MySQL > > > master > > > > which doesnt directly interact as a mail server, but it makes > > > > the > MySQL > > > > database triple-redundant without sacrificing performance. > > > > > > > > For load balancing/redundancy, we are using Foundry > > > > (http://www.foundrynetworks.com/) switches with the SLB > > > > (Server Load Balancing) code. Very powerful; it not only > > > > detects if the > server is > > > > running, or listening to port 25/110, but it actually > understands SMTP > > and > > > > POP3 and will make sure the SMTP and POP3 servers are > > > > responding > > properly > > > as > > > > part of its 'heartbeat' tests.. So, for example, if you had > a machine > > that > > > > had a problem and would still listen to port 25 but couldnt > > > > actually > > > answer > > > > with a '220', it would be treated as 'offline' instead of > opening dead > > > > connections for clients.. It also allows you to load > balance between > X > > > > number of servers rather than just failing over in 'worst > > > > case > scenario' > > > > situations.. > > > > > > > > Andre > > > > > > > > > > > > > > > > > > > > > > > > > > > -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 7.0.3 for non-commercial use <http://www.pgp.com> iQEVAwUBPhGtw/o9HK4+yTI3AQGwlgf+OitLqMTtv/2Ru4IB/pxqVQMQdMoFFiNm b5sRF/P0FVsyQf3kOQij97HLWAXIQmWYYPVb5lzdxmF39JBpbLfTofXwSVJkYUlL ygX8cYhYsqIVuR2iE0UYF2JmzSy2zqn8pGHPhJrizkhGw+EgtschHAOeAYO0LGwG pgNvNHUondKhm28cYZa0tSskgfyjA4YHmhEX/rUBDax9PWiuQdngsjHZQ1/bOD1I NVr0YbguL6igB0AGBGWtH9yNT8rcQfkFpa3UHcy0oPSda/lueVOOeG54kKf6IEBy UN+UwxwOaXGl3YhUy19G5rkyGMBv49D/iefycR8Ri433T7qW8WVFUw== =OOIN -----END PGP SIGNATURE-----
