Here is what I have running:
IPCop Firewall/Webcache/dns proxy/DHCP with telco DSL in and single IP serving all web applications on different ports facing the internet. on a single domain name. Internal network is 192.168.80.0 and a series of different technologies server different web applications from virtual machines.
cloudmin pro master ubuntu server 64 12.0.1: Hewlett-Packard / ProLiant DL360 G5 with 4 cores (2.66GHz) & 20 GB of ram. LVM Setup on Raid 1+0 disks SYSTEM=72GB/72GB STORAGE=146GB/146GB
kvm host ubuntu server 64 12.0.1: Hewlett-Packard / ProLiant DL360 G6 with 16 cores (2.67GHz) & 24 GB of ram. LVM Setup on Raid 1+0 disks SYSTEM=146GB/146GB STORAGE=146GB/146GB
kvm host ubuntu server 64 12.0.1: Hewlett-Packard / ProLiant DL360 G5 with 4 cores (2.66GHz) & 32 GB of ram LVM Setup on Raid 1+0 disks SYSTEM=146GB/146GB STORAGE=146GB/146GB
Netgear ReadyNas Pro 1.5 TB (for VM Backups via SSH)
I have this new server coming In about 2 weeks:
Hewlett-Packard / ProLiant DL360p G8 with 12 cores (2.5GHz) & 196 GB of ram LVM Setup on Raid 1+0 disks SYSTEM=146GB/146GB LVM Setup on Raid 5 disks STORAGE=146GB+146GB+146GB+146GB+146GB+146GB
With this new server, I was hoping to migrate my cloudmin pro over to the new server and have all three older servers provide additional processor, memory and disk resources(iSCSI im thinking) to cloudmin, for some kind failover arrangement as these web applications are mission critical during the summer.
A buddy told me that virtualmin (Something I have never used) can allow me to provide multiple applications (all on port 80) from multiple VMs all over a single IP if virtualmin controls the DNS.
I am wondering if this is all possible and or feasible and looking for some guidance before I start buying more licences and reformatting servers.
Thanks for any and all guidance. Franco