HA Cluster for ftp server

I am thinking of creating HA cluster (x86) for ftp server. The ftp server is used as file exchanger (the files are deleted just after download) so it is important to HA just service (ftp) not data on it. Is it possible to create the cluster without shared storage ?p.

[281 byte] By [przemolb] at [2007-11-26 8:44:23]

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# 1

you need a quorum device for cluster to avoid split-brain situation. so shared storage is necessary

kirilln at 2007-7-6 22:26:54 >

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# 2

This is not completely true.You can have a 3 node cluster which doesn't need storage.So if a third node is cheaper that shared storage this is a viable solution for a working cluster.

fachiro at 2007-7-6 22:26:54 >

# 3

If I choose three node cluster without shared storage do I need two dedicated links between each node (in total: 6) or just one (in total: 3) ? I know that the requirements is to have at least two interconnects and lower number is not supported. But is it going to work if I decide to use just one interconnect ?

przemol

przemolb at 2007-7-6 22:26:54 >

# 4

In a 3-node cluster you need 2 cables from each node connected to 2 independent switches. This gives you an HA service.

It'll work with single interconnects as well, but if your single switch should die, your service will as well, as all the nodes will then fail simultaneously.

So, either you want an HA service or not. Servers today come with lots of network ports anyway and switches do not cost that much.

Regards

Hartmut

HartmutS at 2007-7-6 22:26:54 >

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HA Cluster for ftp server

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