Re: [hobbit] Advice on how to handle HA monitoring

[Charles Jones <jonescr (at) cisco.com>]

Buchan Milne wrote:

> What I do is to do all the infrastructure tests on both nodes, the procs 
> checks check only for the cluster intrastructure (besides local processes 
> like say syslog), then a check using the cluster software on both nodes, and 
> finally monitor the network services (and only them) on the clustered 
> service's IP.
>   
How are you monitoring only those, I assuming using the nodisk, noconn, 
etc tags?
> And, there are a few reasons I avoid installing software on the SAN, this is 
> one of them ... (the other is that if you screw up upgrading your clustered 
> software, you have an outage, whereas if it's installed locally on each box, 
> you could just fail back ... or in most cases the cluster middleware would 
> have done it already).
>   
I'm in total agreement about the SAN issue. Sadly in my case, it is not 
my choice. At least I have found that for the most part, Hobbit 
gracefully handles using a shared homedir, as it adds the hostname to 
the filename of the various files the clients generate.

-Charles