Hello,
We have two SG software appliances (HP DL360 Gen9 servers) running at version 9.716-2 in an HA pair in the same datacenter. Their HA connection is an Ethernet cable directly linking Eth0 on both servers.
We're looking to move one of the pair to a separate datacentre about 20 miles away. The datacenters are connected with redundant 10G circuits. The Internet breakout is BGP based so it can "exit" from either datacenter. All VLANs are "stretched" between the two datacenters. Jumbo frames is enabled end-to-end. So, in terms of network topology I think we're ok.
My question is more around what would be the best way to perform the migration of the SLAVE to the other datacenter.
Can we just power down the SLAVE, unpatch the HA cable, move the SLAVE to the 2nd datacenter and patch in the HA interface (Eth0) at both sites to switch ports on the same VLAN. The migrated server's Outside and Inside ports would of course be patched to switch ports with the same VLANs defined for the equivalent ports used by the MASTER's Outside and Inside interfaces. And then power on the SLAVE. Is that likely to work?
Or would it be recommended to break the HA which will factory reset the SLAVE, migrate that server to the new datacenter, patch it in, perform a basic installation, upgrade to the matching version (9.716-2) and then re-establish HA?
Any advice will be welcome!
Ross
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