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Drobo S 5-Bay Hard Drive Array Enclosure

B&H # DRDRDR4A21 Mfr # DRDR4A21
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Product Highlights
  • USB 3.0
  • eSATA
  • FireWire 800
  • BeyondRAID Data Protection
  • Single or Dual-Drive Redundancy
  • Supports Drives up to 4TB in Size
  • Drobo Dashboard 2.0 via Update
  • Drobo PC Backup via Download
  • Mac & Windows Compatible

The Drobo S 5-Bay Hard Drive Array Enclosure by Data Robotics delivers an expandable, future-proof solution for creative professions and small businesses in need of high performance backup storage. Built on BeyondRAID technology with single or dual-drive redundancy, this 2nd generation Drobo S protects your data automatically, even in the event of multiple drive failures. Able to hold up to five hot-swappable drives, this system ensures you'll have a high-performance connection to virtually any system with available USB 3.0, FireWire 800 and eSATA connectivity. With its unique ability to mix and match drives of several different classifications, the Drobo S allows you to instantly expand your capacity simply by adding or replacing a drive. With self-healing and drive redundancy technologies, the Drobo S helps make sure your data is always safe and accessible.

Drobo Dashboard 2.0.2 via Firmware Update
You'll be able to install the Drobo Dashboard 2.0.2 via simple firmware update. It offers a variety of features not included in the original Drobo Dashboard, including:
  • View of all of your Drobos in one window
  • Get capacity and status for each Drobo
  • DroboCopy tasks run in the background
  • Get e-mail alerts about your Drobo
Drobo PC Backup
Purchasing this item entitles you to a free download of the Drobo PC Backup software. It allows you to:
  • Back up your PC to your Drobo with ease
  • Supports direct or network connections
  • Supports backup over USB, FireWire, or eSATA
BeyondRAID Technology
Every Drobo product comes with the revolutionary BeyondRAID storage technology - the next generation of redundant disk protection. BeyondRAID not only keeps your data safe, but will also increase uptime and availability. BeyondRAID technology offers several improvements over traditional RAID-based storage systems, including the flexibility to replace failed disks and increase capacity, all without costly downtime.
File and Operating System Agnostic
Drobo and its underlying BeyondRAID technology currently support the Windows and Mac platforms, with file system support for NTFS, HFS+, and FAT32. Since Drobo is a block level system, it easily adapts to most any environment.
Mixed Drive Capacity Utilization
Grow storage to meet your data capacity needs with minimal effort. To add capacity, simply insert a new hard disk or replace the smallest disk with a larger one, even when all four disk bays are full. Unlike traditional RAID systems, the BeyondRAID technology enables IT managers to efficiently mix and match disk brands, capacities, and speeds. This allows for continuous expansion as disk capacities grow.
Redundant Safety
Drobo can ensure your data is safe even if a hard disk fails. You'll feel safer knowing that if disks do fail, Drobo automatically enters a state of self-healing wherein it relays out your data across the remaining healthy disks and sectors.
Proportional Rebuild Times
The time it takes Drobo to rebuild data after a drive failure or removal is proportional to the amount of data stored in the pool - meaning the less capacity that is used, even on a 4TB disk, the shorter your rebuild times will be. This is superior to traditional RAID, which lacks proportional rebuild times, and is forced to relay out every drive block even if it does not contain user data.

Since Drobo is 'Data Aware', it tracks where data is on each disk, so it can differentiate between used and unused portions of disk. This expedites rebuild times and reduces your risk of losing data to an additional disk failure.

When Drobo detects a 'bad' hard disk, it proactively advises you with a series of warnings ranging from a blinking red LED on its front panel, to pop-up alerts in Drobo Dashboard, to email alerts. What Drobo does next is exceptional. It enters a self-healing mode where it repairs around the bad sector or disk, and will work until it returns to the safest state possible. If Drobo has sufficient time and free capacity (indicated by all lights returning to a solid green state), it can even withstand additional hard disk failures - that's the power of self-healing.
Storage Virtualization
BeyondRAID was designed from the ground up to allow the storage capacity of the array to expand and contract. BeyondRAID makes this a simple process by utilizing a technology called 'virtualization.' Virtualization provides a layer of abstraction between the data requested by the file system and the physical location of that data on the disk drives. A given piece of data can be located on any drive, and on any physical location on that drive.

Virtualization is what enables BeyondRAID to effortlessly change the data arrangement on the drives, for example, changing data stored as a mirror into data stored as parity stripe, without interrupting the user access to data. Virtualization completely decouples the physical space available in the array from the space reported to the operating system. This is how BeyondRAID is able to eliminate the need to manually expand/contract the file system as more space becomes available or is removed.

Thin Provisioning
Thin provisioning is a technical term that describes how the BeyondRAID technology communicates with your operating system. BeyondRAID communicates with your OS about how much disk space you have, up to 16TB (this varies with older operating and file systems). Specifying a larger amount of storage than is physically available allows you to grow into the volume without having to reformat or migrate your data in order to add capacity. BeyondRAID automatically also reclaims space as you delete files.
Drobo is highly automated storage. There are no complex configuration screens, DIP switches, confounding choices, web consoles or other complications that prevent so many other storage devices from working out of the box.
Drive Reordering
One long-standing requirement inherent in traditional RAID-based systems was that if for some reason you needed to remove the drives, you'd have to replace the drives in the exact same order. When you remove your disks from Drobo, you can put them back in any order you like.
Interface eSATA, FireWire 800 (FireWire 400 compatible), USB 3.0 (USB 2.0 compatible)
Drive Capacity Up to 5 3.5" SATA I / SATA II hard drives of any manufacturer
Supports up to 4TB drives with any spindle speed and/or cache
Power Idle system (standby, drives off) = 12W
Typical busy system (four drives) = 56W
Utilities Windows: NTFS
Mac OS X: HFS+
Cross-Platform: FAT32
Operating Systems Supported Windows 2008 Server, Windows 2003 Server, Windows XP, Windows Vista, Windows 7, Mac OS X 10.5 or higher
Dimensions (DxWxH) 10.3 x 5.9 x 7.3" (262.3 x 150.3 x 185.4 mm)
Weight 8 lb (3.62 kg)
Drobo S 5-Bay Hard Drive Array Enclosure
  • External Power Supply
  • eSATA Cable
  • FireWire 800 Cable
  • USB 3.0 Cable
  • User Guide
  • Quick Start Card
  • Drobo Resource CD
  • 1-Year Limited Warranty
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