So unfortunately it appears that I am one of many to discover that VMWare Fault Tolerance VMs do not allow snapshots and therefore Veeam (and other snapshot-driven backup solutions) cannot backup FT VMs. That said, I read this article:
How to Backup Fault Tolerant VMs in vSphere 4http://www.petri.co.il/backup-fault-tolerant-vms-vsphere-4.htm
And was wondering if anyone has attempted this and would care to comment on their success with it. I think I am going to attempt it. We are a Hyper-V environment which just purchased our first two SANs (EqualLogic PS4100XV/E) and we are in the process of migrating to VMWare vSphere v5.1 so we have hit a few bumps along the way but for the most part this is the last thing we have to overcome (FT backups).
Essentially from what I gather, if you backups start at say 8pm, you have to use Windows Task manager to 'turn off' the FT on the FT VMs (not just 'disable') a few minutes before the backups start via a script (vSphere CLI), and then Veeam will back them up correctly, afterwhich you can have a "Post job activity" in the Veeam job to start a batch file that launches a script via vSphere CLI to turn FT back on for whatever VMs you require.
Messy? Yes... but hopefully this allows us to have the best of both worlds (we are for the most part a 9-5 shop so if I can have FT turned on from 9-5 and just disable it during the 2-5hr backup window each night then I am happy with that).
Please share your comments and experiences on this
Oh, also, I found this interesting from the article above: "...if you are using a third party application such as Veeam and have an active support agreement with the vendor, then you should contact them first to see if they have their own solution." I haven't *yet* contacted support on this as I suspect they don't have a Veeam-supported or endorsed solution (at least none that I have seen via Veeam Forum searches) but perhaps I will contact them when time permits...