Hi, I have media server in VMWare Workstation 9 VM, guest OS is windows 2008 R2. For VM set 2 cpu and 4 GB memory. I use deduplication, indexing, disaster recovery info collection, trueimage info collection, acceleration and made system-state and drive C (about 20 GB used) backup from Netbackup master-server, located in other VM. The backup succeed without errors, but it took 15 h to complete and writing speed was about 500 KB/s. VMWare Workstation host system is Windows 2012 and virtual disk is in storage-spaces in mirror. Its too slow to accept. Now I plan to put media server into dedicated physical machine. I can choose to put it into 2008 server running in plain hardware or running in ESXi. Dont know, maybe ESXi also slows down backup speed. Only storage for deduplic ation I cant put into new server. I can use iSCSI - iSCSI server in present 2012 server and iSCSI client in new media-server. Maybe iSCSI also slows dows backup?