1. A method comprising: replicating data between storage of a first server and storage of a second server configured as high-availability (HA) storage partners, wherein the storages of the first server and the second server are not shared between the first server and the second server, by using a sub-RAID level proxy in each of the first server and the second server to proxy data mirroring communications between the first server and the second server; and using a third host external to the first server and the second server to export direct attached storage (DAS) storage of the third host to the first server and the second server, wherein local DAS storage of a physical machine that hosts the first server is not owned by the first server, and wherein local DAS storage of a physical machine that hosts the second server is not owned by the second server.