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Hi Digimer Thanks for your helpful reply. Actually i didn't determine yet by which method i will sync the data until i will overlooking into searching. Regarding fencing, i will use 2 standalone Dell R210 servers. So which Linux distribution, you recommend me to use because i am about to implement it in the next few days. and Which the method i will follow to create the cluster, referencing to the "Cluster Administration" document. as i see : Luci, Conga, Cluster Manager, etc.. Your help is appreciated Thanks > Date: Mon, 5 Jul 2010 16:48:45 -0400 > From: linux@xxxxxxxxxxx > To: centos@xxxxxxxxxx > CC: torintino2@xxxxxxxx > Subject: Re: CentOS Cluster > > On 10-07-05 04:36 PM, Torintino T wrote: > > > > > > Dear All, > > > > I am newbie to Linux Clustering , i have 2 standalone CentOS servers, i want to setup a cluster on those servers, > > to synchronize between each other, and to make a one as standby to the other, if a one fails the other will switchover. > > > > I will mostly use Apache, Mysql, and PHP. > > > > I have read the "Cluster Administration" document, i found that there are multiple methods to setup the cluster, > > actually i want to ask expert people in the clustering, which method is the most proper one, > > and should i have use a fence device, which one i will preferably use. > > > > Thanks for assistance. > > How you implement the application fail-over will depend on your approach > for each of you high-availability applications. Have you thought about > how you will sync data (DRBD, GFS2, NFS, etc)? > > As for the cluster itself, that is, the stack underneath the > applications, it is not too hard to setup. Install the clustering group > and then configure the '/etc/ais/openais.conf' file and the > '/etc/cluster.conf' file. Of course, how to do that is a bit bigger > question. > > As for fencing; Yes, yes and definitely Yes. If your servers have IPMI > (ie; Dell's DRAC, HP's iLO, etc) then use IPMI for fencing. Otherwise > you will need an external fence device like an addressable PDU. > > A word of note; Clustering on CentOS is fairly old now. Old enough, that > I've personally moved off of it Fedora 13 for non-production use in > order to prepare for the "real soon now" RHEL/CentOS 6 release. If > you're not imminently deploying your cluster, you may want to explore this. > > -- > Digimer > E-Mail: linux@xxxxxxxxxxx > AN!Whitepapers: http://alteeve.com > Node Assassin: http://nodeassassin.org H otmail: Free, trusted and rich email service. Get it now. |
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