Drobo 4-Bay USB 3.1 Gen 1 Storage Array (3rd Generation)

BH #DRDDR3A21 • MFR #DDR3A21
Drobo
Drobo 4-Bay USB 3.1 Gen 1 Storage Array (3rd Generation)
Key Features
  • 4-Bay Desktop HD Enclosure
  • Holds 4 x 3.5" SATA HDDs (not included)
  • USB 3.0 Port, Cable Included
  • Mixed Drive Size Utilization
The third generation 4-Bay USB 3.0 Storage Array from Drobo is capable of holding up to four 3.5" SATA I/II/III hard disks from a variety of manufacturers, with differing capacities, speeds, and memory allocations. You can install each drive without the need for additional tools or accessories. Each drive bay is also hot-swappable allowing you to replace drives without shutting down your system.
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Drobo DDR3A21 Overview

  • 1Description
  • 2Data Protection Made Simple
  • 3Investment Plan
  • 4Enhanced Time Machine Support
  • 5Designed for You
  • 6Power Protecting Your Critical Data
  • 7Drobo Dashboard
  • 8Integrated LEDs

The third generation 4-Bay USB 3.0 Storage Array from Drobo is capable of holding up to four 3.5" SATA I/II/III hard disks from a variety of manufacturers, with differing capacities, speeds, and memory allocations. You can install each drive without the need for additional tools or accessories. Each drive bay is also hot-swappable allowing you to replace drives without shutting down your system.

The Drobo storage array comes equipped with one USB 3.0 port to plug it into Mac computers running Mac OS X 10.7. or higher, including macOS High Sierra, as well as Windows computers running Windows 7 (32- or 64-bit), or Windows 8/8.1 (32- or 64-bit). Once connected, you can take advantage of the HFS+ or APFS file system for use with Mac computers and the NTFS file system for use with Windows computers. Additionally, you can see the status of the Drobo as represented by the drive bay indicator lights, the capacity gauge, and status lights to ensure your Drobo is functioning properly.

This Drobo storage array comes compatible with Apple Time Machine allowing you to create complete system backups directly from your Apple computer. You can even allocate a specific amount of data you wish to use for each system backup. Additionally, the included Drobo Dashboard software provides an intuitive user interface to manage all aspects of your Drobo from monitoring the status of the drives, to administrative tasks, and more.

Data Protection Made Simple

This third generation Drobo storage solution is built upon the enhanced BeyondRAID technology. BeyondRAID can be configured to protect against one or two simultaneous drive failures with just one click, automatically protecting your data without any user intervention. In addition, you can purchase the capacity that you need now and increase space by adding drives into empty slots, or by swapping smaller drives with larger ones. When you do, the additional capacity is instantly available.

Investment Plan

You can increase drive capacities with no downtime by adding or swapping in larger drives. You can also seamlessly upgrade to the latest platform Drobo has to offer by removing the existing disk pack from your previous generation system and moving them to the new Drobo. Upgrading to the latest technology not only provides an instant performance boost, it also delivers all the new features and benefits offered by the new Drobo.

Enhanced Time Machine Support

Apple's Time Machine can consume all of the capacity of an external storage system without a simple way to set capacity limits. By utilizing Drobo Dashboard users can easily allocate a specific amount of capacity to be dedicated for backups and preserve the remaining space for data storage.

Designed for You

This Drobo device has been designed to provide high capacity without taking up a lot of desk space. Its compact design is made possible through the use of Drobo's carrier-less drive bay design allowing drives to be installed very close to each other.

Power Protecting Your Critical Data

With integrated battery backup technology your data in memory or cache is protected. When power spontaneously goes out, Drobo moves any in-flight data to onboard flash in your Drobo so it will be protected. The protected data will be moved to your disk drives once power is restored. This ensures your important information is safe and sound. Additionally, the battery recharges itself and is designed to last for the life of the Drobo.

Drobo Dashboard

Drobo Dashboard is the single tool used to centrally manage all of your Drobo devices. Drobo Dashboard displays status as if all of your Drobos were right in front of you with the same status lights and capacity gauges that are on the front panel. All administration tasks are a single click away.

Integrated LEDs

Lights on the front panel tell you what's happening. Each blue LED along the bottom represents 10% utilization letting you know exactly how much capacity is consumed. Green, yellow, or red LEDs keep you informed of each drive's status at all times. You can also take off the magnetic cover to see exactly what each LED indicator means.

Drobo DDR3A21 Specs

DrivesUp to four 3.5" SATA I/II/III hard disk drives or solid state drives
Drives of any manufacturer, capacity, spindle speed, or cache
No carriers or tools required
Expandable by adding drives or hot-swapping drives with larger ones
(Drives sold separately)
Connectivity1 x USB 3.0
Compatible Operating SystemsMac OS X 10.7 or higher, including macOS High Sierra
Windows 8/8.1 32 and 64 bit
Windows 7 32 and 64 bit
File System SupportMac OS X: HFS+ and APFS
Windows: NTFS
ManagementDrive bay indicator lights, capacity gauge, status lights
Drobo Dashboard version 2.6 or later
BeyondRAID FeaturesThin provisioning
Instant expansion
Mixed drive size utilization
Automatic protection levels
Dual disk redundancy
Virtual hot spare
Data aware
Drive re-ordering
Power RequirementsExternal power supply
AC Input: 100-240 VAC-2A, 50/60 Hz
DC Output: 12 V, 12.5 A, 150 W max
FanSingle, fixed, variable speed cooling fan
Additional Software FeaturesDrive spin down
Dim lights
Hardware FeaturesCarrier-less drive bays
Power fail protection
Kensington lock port for security (lock not included)
Dimensions (WxHxD)5.0 x 6.3 x 10.7" / 152.4 x 160.0 x 271.8 mm
Packaging Info
Package Weight11.65 lb
Box Dimensions (LxWxH)13.9 x 12 x 10.1"
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YOUR RECENTLY VIEWED ITEMS

question

What is the Max HD size supported by this unit? Or is a spec sheet available somewhere to look this up?
Asked by: Richard
Officially, the 6TB is the largest supported. 8TB drives are currently getting qualified ,but have been working in some cases.
Answered by: Brett B. Drobo Expert
Date published: 2018-08-25

question

Is it possible to bypass the simple redundancy system? I want to use it for Time Machine but only 10.85TB out of 16TB (4x4TB) is available. Once I'm using for backup, it's like a dual disk redundancy, which I'm not interested right now. Thanks.
Asked by: Anonymous
Thank you guys for the help!
Answered by: wagner M.
Date published: 2018-08-25

question

Can it read existing drives without having to be formatted for Drobo??
Asked by: Jim
Hi Jim-I'm told it can read drives from other Drobos. This drive is the 2nd Drobo unit I have purchased. The original was a 1st gen 4bay Drobo. While it works well it is a USB2 device and I wanted a USB3 device. I also decided to start with 4 new fresh drives. So my personal experience did not include transferring drives. That being said unless you have important data on the existing drives, it makes sense to re-format. Finally, you can either call Drobo or check out their website and more specifically, their support section where you should be able to find out a definitive answer. I'm VERY PLEASED WITH MY NEW 4BAY DROBO. Good luck.
Answered by: Mark K.
Date published: 2018-08-25
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