[CentOS] Question about clustering
m.roth at 5-cent.us
m.roth at 5-cent.usWed Jun 18 18:46:45 UTC 2014
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Digimer wrote: > On 18/06/14 12:32 PM, Alessandro Baggi wrote: >> Ok, fencing is a requirement for a cluster for hardware failure. >> I've another question about this arg, but for software failure. >> Supposing to have a cluster of httpd installation on 6 virtualized >> hosts, each one on a different server. Suppose also that a guest (named >> host6) has a problem and can't start apache. With this scenario, the >> ipmi, ups are unnecessary. How to work fencing in this way? How to make >> fencing node? >> > I'm not sure I understand properly... You mean that you have 6 VMs which > are nodes in a cluster, or 6 nodes, each hosting a VM you want to make HA? <snip> I'm not clear on what you mean, either. Is this supposed to be a load-balancing cluster? If so, and you expect that kind of load, I, personally, would *never* put a VM on them - I'd want the full resources of the o/s brought to bear on that load, and use multiple real hardware for the other members. Doing this with VMs is only multi-threading the load, and adding more, with all the context switches. mark
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