Re: Cyrus HA LB cluster summary

2006-11-29 Thread Michael Menge
Hi, i have to correct some information Quoting Michael Menge [EMAIL PROTECTED]: - Shared filesystem Active/Passive This setup can add HA to a normal Cyrus server by storing the Mails and databases on a shared filesystem and monitoring the server with heartbeat. This setup should work

Re: Cyrus HA LB cluster summary

2006-11-29 Thread Michael Menge
Hi, Quoting Gary Mills [EMAIL PROTECTED]: On Tue, Nov 28, 2006 at 05:28:02PM +0100, Michael Menge wrote: The following shared Filesystems seem support the file-locking GFShttp://sources.redhat.com/cluster/gfs/ Lustre http://www.lustre.org/ NFSv4

Re: Cyrus HA LB cluster summary

2006-11-29 Thread Yuri Gorshkov
Michael Menge wrote: I know that this list is not complete so feel free to add more shared filesystems to the list. Maybe we should share oure expirience with these filesystems and discus advantages and disadvantages. What about Lustre? Anybody has tried this in combination with

Re: Cyrus HA LB cluster summary

2006-11-29 Thread Michael Menge
Quoting Yuri Gorshkov [EMAIL PROTECTED]: Michael Menge wrote: I know that this list is not complete so feel free to add more shared filesystems to the list. Maybe we should share oure expirience with these filesystems and discus advantages and disadvantages. What about Lustre?

Re: Cyrus HA LB cluster summary

2006-11-29 Thread Marcelo Maraboli
Great summary Michael. I have a few questions on what a shared filesystem hardware CAN be: - iSCSI storage ? (cheap GigaEthernet SAN) according to Wikipedia http://en.wikipedia.org/wiki/ISCSI , only 1 iSCSI-client can be connected to 1 iSCSI-server (disk) at a time...so this does not allow for

Re: Cyrus HA LB cluster summary

2006-11-29 Thread John Madden
- iSCSI storage ? (cheap GigaEthernet SAN) according to Wikipedia http://en.wikipedia.org/wiki/ISCSI , only 1 iSCSI-client can be connected to 1 iSCSI-server (disk) at a time...so this does not allow for a shared FS ? Yes, much like only one host can connect to an FC LUN at once. :) iSCSI

Re: Cyrus HA LB cluster summary

2006-11-29 Thread Greg A. Woods
At Wed, 29 Nov 2006 15:24:44 -0300, Marcelo Maraboli wrote: I have a few questions on what a shared filesystem hardware CAN be: - iSCSI storage ? (cheap GigaEthernet SAN) according to Wikipedia http://en.wikipedia.org/wiki/ISCSI , only 1 iSCSI-client can be connected to 1 iSCSI-server

Cyrus HA LB cluster summary

2006-11-28 Thread Michael Menge
Hi, the Cyrus (HA and LB) Cluster question seems to popup very often the last months. With this post I try to summarize the info of the posts of the following threads: - Cyrus IMAP and MySQL mailboxes (Building load-balancing cluster) - NFSv4, anyone? - Cyrus, clusters, GFS - HA yet again

Re: Cyrus HA LB cluster summary

2006-11-28 Thread Gary Mills
On Tue, Nov 28, 2006 at 05:28:02PM +0100, Michael Menge wrote: the Cyrus (HA and LB) Cluster question seems to popup very often the last months. With this post I try to summarize the info of the posts of the following threads: Thanks. This is valuable information. The following