Though the company has NAS DNA, as the brainchild of BlueArc Corp. founder Geoff Barrall, Drobo FS is the first of its data storage products to offer a file system interface. Previously announced Drobo products, including the DroboShare, are block storage devices that either attach directly to workstations using USB or FireWire, or to business servers using iSCSI in the case of the Drobo Pro and Drobo Elite.
The Drobo FS adds a proprietary Linux-based file system and a single Gigabit Ethernet connection to the desktop Drobo box. It also adds a fifth disk drive bay to the original Drobo's four slots. Drobo FS holds up to 10 TB, with 5.5 TB usable if the extra drive is used for redundancy.
Data Robotics senior director of marketing Jim Scherhart said Drobo FS "eliminates the USB [connectivity] bottleneck, and adds new processors for a quadruple performance improvement over DroboShare."
But while Data Robotics has SMB storage products with the Pro and Elite models, the company says Drobo FS is meant for home networks in the consumer market, not at what's traditionally considered a small business. It seems a natural move for the company to add a file system interface to its higher end products, but Data Robotics hasn't said whether it plans to make that update, indicating only that it won't comment on future product directions.
Drobo FS beta tester Seth Resnick, founder of D-65, a workshop that trains amateur and professional photographers in digital asset management through partnerships with companies like Adobe and Canon, said he's found his Drobo Pro, Drobo Elite and Drobo FS units a solid choice for data backup and archiving for his business. However, because his primary application Adobe LightRoom is database-based and sensitive to latency, he prefers to keep his primary storage internal to his workstation machines.
"I wouldn't use a Drobo for primary storage – it doesn't perform fast enough," Resnick said. With a single Gigabit Ethernet NIC, Drobo FS doesn't have the redundancy most businesses expect from a primary storage product.
Still, at least in some cases, "Drobo FS could easily slide into the small office/home office [SOHO] or SMB space," said IDC analyst Liz Conner. "I think if the FS catches on, you will see a high-end version with more drives and capacity. My guess is they will probably do that."