Sc101
The SC101 is a home networked storage product from Netgear. The device is capable of sharing data stored on 1 or 2 internal disks (either IDE PATA or SATA depending on model) via Ethernet links.
The SC101 comes in two models:
SAN not NAS
The SC101 is a block level device, hence a Storage_area_network (SAN) device, as opposed to a file-level device, aka Network-attached_storage (NAS). The result of this is that you have to have proprietary drivers installed on windows in order to connect to the device.
Linux Drivers
There's been lots of talk of a driver for Linux but Netgear have failed to deliver. There is an open source driver for Linux on Google Code. But because this is a block level device, the OS is responsible for creating a filesystem. Consequently, a filesystem created by Linux won't be compatible with one created by Windows.
However, a post here suggests using NTFS-3g on Linux. They report to have had no dataloss with this, and performance wasn't too bad.