I have very strange question but I hope that some one will be able to help me here.
On the beginning my Cluster Environment composed from 2x Ironport ESA C170. After two years I have decided to extend Cluster with the next two Systems, but CISCO has offered me much stronger new Systems 2x Ironport ESA C190.
At the Moment my cluster composed with:
These 4 machines are running in the configuration Cluster.
When I have ordered machines, CISCO told me that both Systems are compatible - in did, they are compatible till Moment when System starting to be overloaded. As I see, C170 is much slower than C190 but using the same configuration as C190.
When we are sending a lot of e-mails 2XC170 are running in conservation mode and they are not available, and 2xC190 are also running in conservation mode but I`m able to Login with ssh.
Now I would like to solve Performance Problem, to do it I have decided to build additional two VMs (8cores + 32GB RAM each one) and join them to the current cluster. What will happend if I will join that two VMs to the current "mixi dixi, super duper" Cisco Cluster ?
Will such a 6 nodes Cluster work ?
2x SLOW C170 (Hardware appliance)
2x MEDIUM C190 (Hardware appliance)
2x FAST VMs (VMware appliance)
what will happend if I will send traffic with the same MX prio to all machines at the same time.
I`m really frustrated with CISCO Support, because each engineer has different opinion. Maybe some here has some better experience with Cluster sizing...
Thanks in advance for any hints.
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