Archive for the tag 'cluster'

 

 

Aug 27 2014

LVS: a Free Load-Balancer for Microsoft Exchange

Published by under Linux

Microsoft Exchange traffic can be load-balanced with Microsoft NLB but it requires to set up 4 Exchange servers for the sake that NLB isn’t compatible with (Exchange) cluster. Most Microsoft guys do not recommend it.Among NLB downsides, Exchange services are monitored with a basic ping, meaning the service is considered to be active even if […]

2 responses so far

Aug 20 2009

File server cluster on Windows 2003 Server Standard Edition

Published by under Windows

Most of us already know cluster features aren’t provided on Windows 2003 server Standard Edition.The thing is you’ve got a shared storage space but you can’t (or don’t want to) afford 2 Windows Enterprise licences just for a file server.There is DFS indeed but one acknowledge it is a pity to replicate data that resides […]

2 responses so far

Jan 20 2008

Heartbeat 2 Howto

Published by under Apache,Linux

Important note: Heartbeat is now obsolete and has moved to a new stack available on Clusterlabs. For simple high availability project using a virtual IP, try out keepalived that does monitoring and failover with just a simple configuration file. Since version 2, Heartbeat is able to manage more than 2 nodes, and doesn’t need “mon” […]

23 responses so far

Apr 18 2007

Mysql Failover

Published by under Mysql

Important note: Heartbeat is now obsolete and has moved to a new stack available on Clusterlabs. For simple high availability project using a virtual IP, try out keepalived that does monitoring and failover with just a simple configuration file. When a Mysql server contains critical data, it’s always a good idea to rely on more […]

4 responses so far

Apr 01 2007

Mysql Replication

Published by under Mysql

Having a few databases running on Mysql with tables growing to several millions of rows, backups become pretty heavy. If the server fails, it can mean several hours lost, working on setting up a new server and reimporting the data from the backup. I’m not even talking about the potential financial loss due to the […]

4 responses so far