Hyper-V Replica would work in this situation with a few caveats.
There is a 15 second limit on replication cycles. If the VMs are running database/active services this could be a problem.
That would be handled earlier in the process by the backup job. If the backup is good, the replication won't cause an issue. If the backup is bad, the replication can't fix it, of course, but will replicate the bad backup. But the only place that this can be addressed is in the backup step, the replication is of backup files, so not at a point in the process where it matters.
"Garbage in garbage out" never seems to go away. It's been the bane of our existence since the switch to image/block based backups. :S
File backups suffered from this, too. Databases are just hard to back up.
Why would you have drives for the OS? This both breaks standard storage practices AND assumes a physical install which is a 'no no'.
Why would you assume a physical install ?
I'm installing the hypervisor (in this case FC28) on a Raid1 array of 2x SSDs
Because you stated a dedicated array for the OS, not for the hypervisor. I'm only going by what you wrote. If you wanted dedicated for the OS, you'd need it whether you had a hypervisor or not.
Understood. Next time, will be more specific
Since that's a lot of money to spend just for a hypervisor that isn't used, it seems much more rational to use it for an OS than a hypervisor. It's not that there is truly zero value to a dedicated HV array, but it is nearly zero. SSDs, even cheap consumer ones, aren't free. But the value is so low, they'd basically have to be.
@scottalanmiller hi again....i guess the nfs drive is unmount from the server, because no file record on Nas after the 2016/07/28.....nothing changed on settings.....but a few server shutdown for hardware maintenance.....how can i fix it again ?
Try the mount command again. It might mount right up. If the NFS server has restarted, it would disconnect.
It is not uncommon to only have servers approved to access the storage listed. So many shops will go in and add a server one by one to enable access. If your servers almost never change, this works pretty well and is extremely secure. You can do this in the firewall too, for even more security. But if you are using DevOps and creating and destroying VMs regularly you will want to automate this in some fashion.