We are looking for a recommendation on setting up a redundant file share in AWS. AWS does provide the Amazon EFS (Elastic File Service), though it only supports NFS and doesn't play well with windows machines. It also seems Windows NFS support is pretty poor.
The EC2 VM's we'll be using, which need to access the file share, are Windows Server 2012R2 and AD joined. We would like to be able to have access to the files from at least 2 availability zones.
Amazon Storage Gateway was considered, though wanting access from two AZ's means there will be two writers pointing to one S3 bucket which is not recommended by Amazon.
Do we cluster two servers in two different AZ's? It seems like a lot of overhead and manual maintenance, but if that's the best approach...