Netgear ReadyNAS NV+ 1TB

4 Hot Swappable HDD in a small 8 inch high desktop design (2 500GB HDD included, 2 open slots for future expansion) -2 500GB hot-swap SATA HDD, swap out drives on the fly without powering down the unit.
-2 hot swap disk trays for future expandability.
-Hardware accelerated RAID (0,1,5 and X-RAID™) for better file transfer performance.
-X-RAID™ Technology – Automated RAID Management with Volume Expansion. Scale easily from 1-4 disks and beyond.
-Gigabit Ethernet Interface with native support for Windows, Macintosh and Linux/Unix Clients (CIFS/SMB, AFP, NFS) as well as FTP and HTTP support.
-Built-in system monitoring with SNMP and email alerts.
-Web browser interface and setup wizard to get the NAS configured quickly.
-Bundled 5-Client EMC® Retrospect® backup and recovery software for Windows and Macintosh.
-ReadyNAS Integrated backup manager that enables one-button backup from your NAS appliance to attached USB HDD, or to remote servers.
-Intelligent monitoring of battery backup devices.