Over the WAN?

[barber50701]

Hey all, Let me run this by you.

I have a customer that has 2 sites.

The sites are connected by a VPN over a WAN link (Cable)

They have an ESX server at each site with only local storage. Each server has 2 VM's on it (this is a small bank)

My question is this: is there anyway to do any type of HA or Failover with the current config? I don't think so but i an looking for some advise.

Thanks in advance

Nick

[oreeh]

There's no way to do that as HA requires a shared storage.

[americhanac]

This is basic Geo-Cluster.

Get help from soe real guru's for that though.

Hint: They are not cheap

[barber50701]

Ok.... so lets say the get an iSCSI at each branch.

[oreeh]

If the WAN link is fast enough you can replicate the VMs or synchronize the storages.

Then you can do a "poor man's" HA by starting the VMs when the other site goes down.

[barber50701]

Alright..another dumb question that I should know...what is the best way to replicate of sync the stores?

[oreeh]

That depends on the storage vendor.

[americhanac]

Ekh... pardon my French but...

We are talking about Customer, right?

Not your private network running ove Dynamic IP, right?

Syncronization IS done by Geo-cluster. All other methods are mirroring of the data like in Raid0 so filelock on database will be an issue if there is a critical application. Additionally, what would happen if WAN link is down?

My suggestion still stands and all other solutions are for lab purposes only

Anyway, good luck!