Can you recover data from a Drobo stuck in a red-light reboot loop?

In a red-light reboot loop, the chassis can't assemble the BeyondRAID volume from the drives in it. We bypass the chassis entirely, image each drive independently, and reconstruct the BeyondRAID layout from the on-disk metadata.

Can I move my Drobo drives to a different Drobo chassis?

Not before every member disk is imaged. Drobo Inc. and its parent StorCentric were liquidated under Chapter 7 in 2023, so there is no current-production enclosure to migrate into and any donor chassis is a used unit of unknown history. Image every member disk through a hardware write-blocker and label each bay position.

Drobo Data Recovery

Drobo Inc. filed for bankruptcy in 2022 and was liquidated under Chapter 7 in 2023, leaving these BeyondRAID units with no manufacturer support. BeyondRAID is a proprietary storage format that cannot be read by standard RAID recovery tools. We image each drive independently, parse the BeyondRAID metadata tables, and reconstruct your volume offline. Free evaluation. No data = no charge.

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Author

Written by

Louis Rossmann

Founder & Chief Technician

Updated August 28, 2026

12 min read

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What Customers Say

4.9 / 51,837 Google reviewsverify on Google Maps

March 20, 2024

“All I can say is.. WOW. I spilled water on my laptop and couldn't find anywhere that would fix it, I kept thinking I would have to pay $1000+ for data recovery (always backup your files, kids) and thankfully I found Rossmann! I mailed it in right away! They do water damage, no problem. Patrick was great and super helpful through the process and made everything smooth sailing. They also fixed my Mac within 48 hours and shipped it right back out to me. It was like all I did was shutdown the computer!”

Hannah Hutchinson

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October 7, 2018

“They are the best! My daughter spilled water on her keyboard. Apple store would charge $750 even though we still are in warranty saying they don't cover water damage. Rossmann group fixed it would Q-tips and didn't charge me anything! just told me "next time bring in something really broken". Will tell all my friends to go here for tech need!”

Anita Xu (LittleBu)

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October 25, 2023

“These guys are awesome! Called a bunch of shops around San Antonio and they all said the whole motherboard would need to be replaced after I spilled water on mine and it would cost me around 1000$ to fix it, not only that, all my data would be lost (might as well buy a new laptop).”

Constantin Startev

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March 25, 2021

“Sent my Mac for a water damage charging port and the transaction was transparent I’ve received a proposal and my computer is living again after Apple told me it couldn’t be repaired and the repair would cost so much I would be better buying a new one.”

Yurisbel Jimenez Bermudez

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What Is BeyondRAID

What Is BeyondRAID and Why Does It Complicate Recovery?

BeyondRAID is Drobo's proprietary block-level virtualization layer that combines thin provisioning, single or dual disk redundancy, and support for mixed-capacity drives into a format no standard recovery tool can read.

Traditional RAID arrays (mdadm, hardware RAID controllers) use fixed stripe sizes and predictable parity rotation. A trained engineer with Data Extractor Express RAID Edition can detect these parameters and reconstruct the array.

BeyondRAID discards this model. It uses a thin-provisioning allocator that maps logical blocks to physical extents across drives, with variable stripe widths that change based on the number and size of installed drives.

When a Drobo is healthy, the chassis firmware manages this mapping transparently. If the chassis dies or its firmware gets corrupted, you can't reach that mapping the normal way.

Recovery requires parsing the BeyondRAID metadata tables directly from the raw drive images to reconstruct the logical-to-physical block map. This image-each-member-then-parse workflow runs entirely in-house at our Austin, TX lab and mirrors our broader NAS data recovery work, where every member drive is imaged offline before any array is reconstructed.

Drobo's thin provisioning adds another layer of complexity. The logical volume presented to the host (via USB, Thunderbolt, or iSCSI) can be 16TB or 64TB regardless of actual physical capacity.

Only allocated extents contain real data; the rest are unallocated space that the allocator would fill as data grows. The recovery process must distinguish allocated extents from unallocated space using the thin-provisioning bitmap stored on the member drives.

BeyondRAID is genuinely closed-source. It isn't Linux md-raid with a wrapper, and standard mdadm or hardware-controller tools can't read it.

The two structures that decide whether a recovery succeeds are the BeyondRAID Data Allocation Table (DAT), which records where every logical block actually lives across the member drives, and the thin-provisioning bitmap, which separates real allocated data from sparse empty space. We pull both out of the raw sector-by-sector images and rebuild the map.

If you want the byte-level version of how we parse the BeyondRAID Data Allocation Table, that walkthrough covers the DAT layout, the thin-provisioning bitmap, and the variable stripe geometry in depth.

Drobo Product Lines

Which Drobo Models Can Be Recovered?

Drobo sold both NAS (network-attached) and DAS (direct-attached) models.

Consumer DAS

Drobo 5C: 5-bay USB-C (USB 3.0). You can run it with single or dual disk redundancy.
Drobo 5D / 5Dt / 5D3: 5-bay. The 5D connects over Thunderbolt, the 5Dt over Thunderbolt 2, and the 5D3 over Thunderbolt 3.
Drobo 8D: 8-bay Thunderbolt 3. Dual disk redundancy available.

NAS Models

Drobo 5N: Runs Drobo Apps for add-on services.
Drobo 5N2: 5-bay dual Gigabit Ethernet with internal battery for cache protection.

Enterprise / B-Series

B800i: 8-bay iSCSI SAN.
B800fs / B810n: 8-bay NAS and file-sharing appliance. Both have dual network interfaces.
B1200i: 12-bay iSCSI SAN.

Common Failure Modes

What Are the Common Drobo Failure Scenarios?

Chassis Power Supply or Controller Board Failure

Drobo is bankrupt, so a replacement chassis means a used unit with no warranty. We skip the chassis and image the drives directly.

Multiple Drive Failures During Rebuild

BeyondRAID supports single or dual disk redundancy (similar to RAID 5 or RAID 6). If a second drive fails during a rebuild with single disk redundancy, or a third drive fails with dual, the volume becomes inaccessible. We image all members and reconstruct from available redundancy and data extents.

When a Drobo is stuck in the red-light reboot loop, the chassis can't assemble the BeyondRAID volume from the metadata on its drives.

Drobo's own white paper says a pack missing a drive stays accessible as long as a copy of all the data is still there. If a drive fails and there's enough free space, Drobo moves the data around and gets back to a protected state by itself. Adding a drive gets it protected again, too.

For a bay-by-bay reading of what each light color means and how we image around a chassis that won't mount, see the blinking-red-light recovery walkthrough.

Do not attempt a chassis swap without imaging first. Remove drives, label each bay position, and contact us before trying anything.

Drobo Not Mounting

Why Won't My Drobo Mount or Appear in Drobo Dashboard?

If the chassis is dead, you can't reach the firmware that manages the BeyondRAID logical-to-physical mapping, and without that mapping there's no normal way to get to the data. The mapping itself still lives on the member drives. We bypass the dead chassis, image each drive offline, and parse the BeyondRAID Data Allocation Table and the thin-provisioning bitmap from the raw sector-by-sector images.

Do not move the disk pack into another chassis after a metadata crash. Remove the drives, label each bay position, and image first.

Before You Ship

What Should You Do Before Shipping a Failed Drobo Pack?

Power the unit down, pull the drives, and label each bay position. Don't start another rebuild, don't swap in a fresh disk, and don't move the pack into another chassis.

Reading the Bay Lights Before You Act

Red-light reboot loop: the chassis can't assemble the BeyondRAID volume from the pack. Power it down. Leaving it cycling won't get you anything.
Alternating yellow and green: a rebuild or relayout is running. Do not pull or reseat disks while it runs. If it was interrupted by a power event or another drive failure, stop there and change nothing.
One red bay, volume still mounted: Drobo's own user guide splits the two red states. A solid red bay light means add a drive or replace that drive with a larger one because the device is critically low on space; a blinking red bay light means that drive has failed and should be replaced immediately.

Packing and Shipping the Drives

Remove each drive from its bay and mark the bay number on the drive itself or on its bag. Ship bare drives in padded, individually wrapped packaging.

The mail-in process is the same as for any multi-drive unit. The evaluation documents your model, the number and sizes of installed drives, the LED pattern you saw, and any prior recovery or chassis-swap attempts. There is no diagnostic fee, and if we recover nothing you owe nothing.

Recovery Process

How We Recover Data from a Failed Drobo

Drobo recovery requires bypassing the proprietary chassis entirely. We work directly with cloned drive images and reconstruct the BeyondRAID layout from raw metadata.

Free evaluation: We document your Drobo model (5N, 5N2, 5D, 5C, 5D3, 8D, B800i, B1200i), the number and sizes of installed drives, the LED pattern, and any prior recovery or chassis-swap attempts.
Write-blocked imaging: Each member drive is removed from the Drobo chassis and connected through a hardware write-blocker. We image with PC-3000 or DeepSpar, using head maps and conservative retry settings. If a member's heads have failed, we do head swaps in our clean bench before imaging starts.
BeyondRAID metadata parsing: We locate and extract the BeyondRAID layout tables from the cloned images. These tables contain the thin-provisioning allocation bitmap and the extent map linking logical blocks to physical locations. We break down the exact on-disk format of these tables in our BeyondRAID reconstruction process write-up.
Volume reconstruction: Using the parsed metadata, we reconstruct the logical volume by mapping each allocated extent back to the correct physical blocks across all member images. The result is a single contiguous virtual volume that contains the original filesystem.
Filesystem extraction: On direct-attached models the host operating system formats the BeyondRAID volume, so the reconstructed volume is typically NTFS (Windows) or HFS+ (Mac); Drobo's own spec pages list HFS+ as the macOS file system option. Network-attached models format their own internal volume, and we read which filesystem that is off the reconstructed volume rather than assuming. We mount the reconstructed volume, extract files, and verify integrity against your priority file list.
Delivery: Recovered data is copied to a target drive, verified, and shipped back.

If you need it sooner, there's a +$100 rush fee to move to the front of the queue.

Technical Deep Dive: BeyondRAID Architecture

BeyondRAID Architecture: How It Works Under the Hood

BeyondRAID uses thin provisioning, variable stripe widths, and mixed-capacity drive support to create a logical volume that no standard recovery tool can parse. The chassis firmware manages the mapping from logical blocks to physical extents. When the chassis fails or metadata corrupts, recovery requires parsing the BeyondRAID metadata tables directly from raw drive images.

Thin Provisioning: BeyondRAID shows the host a virtual volume, and its size doesn't depend on how much physical capacity is installed. Extents are allocated on demand as data is written. The thin-provisioning bitmap tracks which extents are allocated and which are free. Recovery must parse this bitmap to locate real data and ignore unallocated space.
Variable Stripe Width: Standard RAID uses a fixed stripe size. BeyondRAID doesn't: its stripe widths vary. Add or replace a drive and it builds new zones and converts existing zones from one type to another.
Mixed Capacity Support: In a Drobo disk pack, redundancy works zone by zone. A zone is built from regions on several drives. Drobo creates zones of different types and sizes on its own, which is how drives of different sizes all get used. Every zone is either single or dual disk redundant.
Redundancy Modes: BeyondRAID offers single disk redundancy (functionally similar to RAID 5 parity) and dual disk redundancy (similar to RAID 6). The redundancy mode affects how many simultaneous drive failures the volume can tolerate. Single disk redundancy: one drive. Dual disk redundancy: two drives. A Drobo has one storage pool, the disk pack. You can flip it between single and dual disk redundancy on the fly. Both modes map onto the single-parity and dual-parity protection levels covered in how RAID parity is calculated.

Drobo Bankruptcy Status

What Did Drobo's Bankruptcy Change for Owners?

Drobo Inc. filed for Chapter 11 bankruptcy in 2022 and converted to Chapter 7 liquidation in 2023, ending all product development, firmware updates, technical support, and warranty service. No replacement chassis are manufactured.

Drobo Inc. (originally Data Robotics, Inc.) filed for Chapter 11 bankruptcy in 2022 and converted to Chapter 7 liquidation in 2023. The liquidation ended all product development, firmware updates, technical support, and warranty service.

If you own a Drobo, the bankruptcy leaves you with two problems right away:

No firmware updates: Security patches and bug fixes are permanently unavailable.
No replacement chassis: New Drobo chassis are not manufactured. Used units on secondary markets have unknown histories and may have their own firmware or hardware problems.

If your Drobo has already failed, contact us for a free evaluation.

Legacy Models Have a Finite Parts Supply

The oldest units are the most exposed. The second-generation Drobo, the Drobo Pro, the Drobo FS, and the Drobo 5N are now more than ten years old. Because of the liquidation, nobody's manufacturing new controller PCBs for any of them.

If the electronics in a Drobo Pro or a Drobo FS fail, the only replacement chassis you'll find are used ones. Those donor units come with unknown histories, and the supply only shrinks.

Recovering from the member drives doesn't need the chassis. We image them offline and parse the BeyondRAID metadata from those images. If you do need the original hardware in the loop, every donor chassis that disappears from the secondary market is one fewer option.

Acting on a failed Drobo Pro, Drobo FS, or 5N while the drives still spin avoids stacking a hardware-sourcing problem on top of a metadata-reconstruction problem.

Is Drobo Still in Business?

No, Drobo is not still in business. Drobo Inc. and its parent company StorCentric filed for Chapter 11 bankruptcy protection in 2022, and in 2023 the case converted to Chapter 7. Chapter 11 is a reorganization. Chapter 7 is a liquidation that sells off the assets. That conversion is what happened to Drobo, and it is why the brand is out of business today.

For anyone holding a unit right now, every manufacturer channel is closed. Firmware updates, warranty service, support escalation, and manufacturer-built replacement chassis all ended with the liquidation.

None of that touches your data. A liquidated company does not change what is written on the drives. The BeyondRAID Data Allocation Table and the thin-provisioning bitmap that record where the volume's blocks physically sit live on the member disks themselves, and they are parsed offline from write-blocked, sector-by-sector images of those disks. Reading them takes neither a working chassis nor any involvement from a company that no longer exists.

If your unit is already dark or cycling in a red-light reboot loop, our Drobo recovery process starts with a full image of every member drive, taken before any attempt to assemble the pack.

Pricing

How Much Does Drobo Recovery Cost?

Drobo recovery uses two-tiered pricing: a per-member imaging fee based on each drive's condition, plus a BeyondRAID reconstruction fee. If we recover nothing, you owe nothing.

Per-Member HDD Pricing Tiers

Each member drive in your Drobo is imaged and priced individually using our standard HDD tier structure. The condition of each drive dictates which tier applies. Your total combines the per-drive tier for every member plus one BeyondRAID reconstruction fee.

Low complexity
Simple Copy
Your drive works, you just need the data moved off it
Functional drive; data transfer to new media
Rush available: +$100
$100
3-5 business days
Low complexity
File System Recovery
Your drive isn't recognized by your computer, but it's not making unusual sounds
File system corruption. Accessible with professional recovery software but not by the OS
Starting price; final depends on complexity
From $250
2-4 weeks
Medium complexity
Firmware Repair
Your drive is completely inaccessible. It may be detected but shows the wrong size or won't respond
Firmware corruption: ROM, modules, or translator tables corrupted; requires PC-3000 terminal access
CMR drive: $600. SMR drive: $900.
$600–$900
3-6 weeks
High complexity
Head Swap
Bench diagnosis found the read/write heads have to be replaced. Clicking can also come from firmware, the preamp, or the spindle
Head stack assembly failure. Transplanting heads from a matching donor drive on a clean bench
50% deposit required. CMR: $1,200-$1,500 + donor. SMR: $1,500 + donor.
50% deposit required
$1,200–$1,500
4-8 weeks
High complexity
Surface / Platter Damage
Your drive was dropped, has visible damage, or a head crash scraped the platters
Platter scoring or contamination. Requires platter cleaning and head swap
50% deposit required. Donor parts are consumed in the repair. Most difficult recovery type.
50% deposit required
$2,000
4-8 weeks

Hardware Repair vs. Software Locks

Our "no data, no fee" policy applies to hardware recovery. We do not bill for unsuccessful physical repairs. If we replace a hard drive read/write head assembly or repair a liquid-damaged logic board to a bootable state, the hardware repair is complete and standard rates apply. If data remains inaccessible due to user-configured software locks, a forgotten passcode, or a remote wipe command, the physical repair is still billable. We cannot bypass user encryption or activation locks.

No data, no fee. Free evaluation and firm quote before any paid work. Full guarantee details. Head swap and surface damage require a 50% deposit because donor parts are consumed in the attempt.

Rush fee: +$100 rush fee to move to the front of the queue
Donor drives: Donor drives are matching drives used for parts. Typical donor cost: $50–$150 for common drives, $200–$400 for rare or high-capacity models. We source the cheapest compatible donor available.
Target drive: The destination drive we copy recovered data onto. You can supply your own, or we'll provide one. For larger capacities (8TB, 10TB, 16TB and above), target drives cost $400+ extra. All prices are plus applicable tax.

Sealed helium drives are on their own price list, $200–$5,000+. When a head swap or platter repair opens one, we refill it with helium. That adds $400–$800, and the donor has to be an exact match. Helium drive prices

BeyondRAID Reconstruction

Metadata parsing and volume assembly from the cloned members. Added once per array on top of the per-member imaging above.

$400-$800

The same per-member imaging plus array-reconstruction structure applies across multi-disk NAS units; for the wider breakdown of how NAS array recovery is priced, including Synology and QNAP systems, see our NAS recovery pricing page.

Data Recovery Standards & Verification

Our Austin lab operates on a transparency-first model. We use industry-standard recovery tools, including PC-3000 and DeepSpar, combined with strict environmental controls to maintain drive integrity. This approach allows us to serve clients nationwide with consistent technical standards.

Localized Clean Zone

Open-drive work is performed in a 0.02 micron ULPA-filtered laminar clean bench.

Transparent History

Serving clients nationwide via mail-in service since 2008. Our lead engineer holds PC-3000 and HEX Akademia certifications for hard drive firmware repair and mechanical recovery.

Media Coverage

Our repair work has been covered by The Wall Street Journal and Business Insider, with CBC News reporting on our pricing transparency. Louis Rossmann has testified in Right to Repair hearings in multiple states and founded the Repair Preservation Group.

Aligned Incentives

Our "No Data, No Charge" policy means we assume the risk of the recovery attempt, not the client.

Technical Oversight

Louis Rossmann

Our engineers review all lab protocols to maintain technical accuracy and honest service. Since 2008, his focus has been on clear technical communication and accurate diagnostics rather than sales-driven explanations.

We believe in showing the bench rather than just describing it. Open-drive work runs on a 0.02 micron ULPA-filtered laminar clean bench, and we filmed it.

See the particle counter test at the bench

FAQ

Drobo Data Recovery FAQ

What do red bay lights on a Drobo mean, and is the data recoverable?

It depends on the pattern. If it's stuck in a red-light reboot loop, the chassis can't assemble the BeyondRAID volume from the drives in it. Drobo Inc. was liquidated in 2023, so there's no manufacturer left to get it out of that state. We bypass the chassis, image each member disk independently through a write-blocker, and reconstruct the BeyondRAID layout from the on-disk metadata in those raw images.

Why won't my Drobo mount or show up in Drobo Dashboard?

If the chassis is dead, you can't get to the BeyondRAID logical-to-physical mapping the normal way, because the chassis firmware is what manages it. We bypass the dead chassis by imaging each member drive offline and parsing the BeyondRAID metadata from the raw images.

Does Drobo still offer support for data recovery?

No. Drobo Inc. filed for bankruptcy in 2022 and was liquidated under Chapter 7 in 2023. There's no manufacturer left to send it to for data recovery or a warranty claim.

Can I move my Drobo drives to a different chassis?

Not before the pack is imaged. Drobo Inc. and StorCentric were liquidated in 2023, so there is no current-production enclosure to migrate into; any donor chassis is a used unit with an unknown history. Image every member disk through a hardware write-blocker first, and label each bay position.

Why can't standard RAID tools read Drobo drives?

BeyondRAID uses a proprietary block-level virtualization layer with thin provisioning, variable stripe widths, and a custom metadata structure. Standard Linux mdadm can't read this layout on its own. There's specialized software that supports BeyondRAID.

Can you recover a Drobo with mixed drive sizes?

Yes. BeyondRAID was designed to support mixed-capacity drives. When we recover one, we account for the variable allocation map and reconstruct the volume.

How is Drobo recovery priced?

Per-member imaging follows our standard HDD tiers. BeyondRAID reconstruction adds $400-$800 for metadata parsing and volume reassembly. If we recover nothing, you owe nothing.

Is the recovery process different for Drobo NAS vs. DAS models?

We image every member disk and parse the BeyondRAID metadata from the raw images, on NAS models (5N, 5N2) and DAS models (5D, 5C, 5D3, 8D) alike. Drobo's own migration notes say a Drobo FS volume is ext3 and a 5N2 volume is ext4.

My Drobo rebuild stopped or failed partway through. What should I do now?

Stop and change nothing. Alternating yellow and green across the bays is the rebuild and relayout state, and disks should not be pulled or reseated while it runs. If a power event or a second drive failure interrupted that process, do not start another rebuild and do not swap in a fresh disk. The next step is to image every member disk through a hardware write-blocker. We then parse the BeyondRAID Data Allocation Table and the thin-provisioning bitmap from those raw images offline. This isn't only a Drobo thing. When the data is irreplaceable and you don't have a verified backup, imaging every member first is where you start with any array still running in a degraded state after a rebuild aborts.

Is any data recovery lab authorized by Drobo, and will recovery void my warranty?

Neither question has a live answer anymore. Drobo Inc. and its parent StorCentric were liquidated under Chapter 7 in 2023, which ended the warranty program, the support channel, and any partner or authorization program a lab could hold. A page claiming Drobo authorization today, or promising that its work preserves your Drobo warranty, is describing a relationship with a company that no longer exists. We make no authorization claim about any manufacturer. What we do claim is verifiable: the work happens in-house at our Austin, TX lab, and if we recover nothing you owe nothing.

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