TDS-h6889AXU-RP

Dual-processor power meets the 68-bay storage revolution — Built for enterprise AI and petabyte-scale data backup

QuTS hero Operating System

Honored with 2026 MSP Today Product of the Year Award

Double the Computing Power: Dual Intel® Xeon® Silver Processors

The TDS-h6889AXU-RP features dual Intel® Xeon® Silver 12-core processors with an exceptional core count and 16 DDR5 ECC RDIMM memory slots supporting up to 1 TB. Optimized for large-scale virtualization, AI image recognition, and complex big data analytics, ensuring enterprise-grade computing performance is never compromised.

Breakthrough Performance: 17,700 MB/s Throughput and Over 1,000,000 IOPS

Dual 12-core processors, DDR5 memory bandwidth, and a built-in NVMe flash tier let the TDS-h6889AXU-RP serve multiple hosts at wire speed — sustaining extreme throughput and sub-millisecond response even while inline ZFS data services are running.

• CPU

  2 x Intel® Xeon® Silver 12-core / 24-thread processors.

• Memory

  DDR5 ECC RDIMM, 16 DIMM slots, expandable up to 4 TB.

Transfer speed

• SMB Sequential Throughput 1M (5 hosts, 6 x 25GbE)

  Write 17,701 MB/s

  Read 16,770 MB/s

• iSCSI Random IOPS 4K (5 hosts, 6 x 25GbE)

  Read 807,426 IOPS

  Write 525,417 IOPS

SMB Sequential Throughput 1M (5 hosts, 6 x 25GbE)	Write 17,701 MB/s	Read 16,770 MB/s
iSCSI Random IOPS 4K (5 hosts, 6 x 25GbE)	Read 807,426 IOPS	Write 525,417 IOPS

Tested in QNAP Labs. Figures may vary by environment.

Test environment:
NAS: TDS-h6889AXU-RP with 256 GB DDR5 ECC RDIMM (16 x 16 GB), QXG-25G2SF-BCM and QXG-100G2SF-BCM network cards
OS: QuTS hero h5.2.9
Volume: 60 x 10 TB SAS 12Gb/s HDD (RAID 50, 15 x 4) with 10% storage pool over-provisioning, plus 6 x U.2 PCIe Gen 4 NVMe SSD; compression off, deduplication off; cache-hit test
Clients: 5 x client PCs accessing simultaneously over SMB / iSCSI

Break Storage Limits: Innovative 4U 68-Bay Top-Loading Design

The innovative top-loading structure breaks traditional drive arrangement limitations, accommodating up to 60 x 3.5-inch SAS/SATA drives plus 8 rear 2.5-inch bays (6 x NVMe Gen 4 U.2 + 2 x SATA) in a 4U chassis. This hybrid architecture not only provides petabyte-scale storage capacity but also significantly reduces floor space costs per TB.

From 1 PB to 5 PB: Capacity That Grows With You

Fill all sixty bays with 24 TB enterprise SAS drives and a single TDS-h6889AXU-RP keeps more than a petabyte of usable capacity online - no tape, no cloud tiering. When that is no longer enough, daisy-chain up to four 60-bay TL-R6020Sep-RP SAS expansion enclosures and grow the same storage pool to roughly 5 PB across 300 drives, with dual-path Mini-SAS 12Gb/s connectivity keeping data flowing even if a cable or expansion path fails.

• Single chassis, usable capacity up to

  1 PB

  With 4 x TL-R6020Sep-RP, up to

  5 PB

Requires a QXP series external SAS storage expansion card. 16-bay TL-R1620Sep-RP enclosures are also supported for granular growth.

Do the Math: One 4U Replaces Two to Three Conventional Systems

Reaching 68 drive bays with conventional 24-36-bay 4U storage takes two to three separate systems - 8-12U of rack space, duplicated power supplies and network cards, and multiple licensing and maintenance contracts. The TDS-h6889AXU-RP consolidates everything into a single 4U chassis that draws less than 1.5 kW even at full load: one system to purchase, license, manage, and service.

• Rack space saved up to

  50%

  Lower power & maintenance cost up to

  40%

Protect Massive Assets: QuTS hero and the Powerful ZFS File System

The QuTS hero operating system, designed for high-density storage, offers Inline Data Deduplication and compression technology to maximize space utilization. Combined with ZFS self-healing capabilities, it guarantees absolute data integrity even with 68 drives running at high speed.

QuTS hero operating system

Designed for enterprises, the QuTS hero operating system adopts the highly reliable ZFS file system to provide utmost data integrity and stability for mission-critical storage. QuTS hero further optimizes SSD performance and endurance to meet businesses’ stringent demands for performance and reliability. Explore the QuTS hero operating system Check out QuTS hero’s latest features

• Automatic repair of corrupted data

  ZFS supports self-healing for silent data corruption, automatically detecting damaged data to ensure data integrity.

• Data immutability

  Defend against ransomware by creating a WORM (Write Once, Read Many) folder to prevent data from being overwritten, modified, or deleted, while also enabling immutable backups.

• Power failure protection

  ZIL (ZFS Intent Log) protects against potential data corruption caused by power failure by safeguarding unwritten data.

• Data reduction

  Inline data deduplication1 reduces storage consumption for maintaining optimal disk capacity.

• Prevent simultaneous SSD failure

  The patented QSAL algorithm automatically and regularly detects RAID-level SSD lifespan to prevent simultaneous SSD failure, avoiding RAID crashes and data loss.

Qtier for QuTS hero

Maximize storage efficiency. Move active data to high-performance SSDs and cold data to high-capacity HDDs.

Hot Tier NVMe SSD

Warm Tier SAS/SATA SSD

Cold Tier SATA HDD

Intelligent Data Movement

Supported Drive	Hot	Warm	Cold
PCIe NVMe SSD		—	—
SAS/SATA SSD	—		—
SAS/SATA HDD	—	—

*Requires QuTS hero h6.0 or later.

Real-time SnapSync ensures minimal RPO with real-time disaster recovery

Real-time SnapSync ensures that both the primary and secondary NAS maintain identical data. When data is written to the source, it is immediately written to the destination. If the primary NAS goes offline, IT staff can simply adjust the privilege settings of the secondary NAS to ensure continuous operations. SnapSync provides the strongest support for nonstop business operations and helps users to reduce the risk of data loss.

Learn More: SnapSync

The TDS-h6889AXU-RP also supports snapshots and remote backup to help organizations accomplish routine backup tasks cost-effectively and efficiently.

• Snapshots multiply backup protection

  Attain peace of mind with near-limitless, instant snapshots. Copy-on-write technology makes snapshot creation almost instantaneous without affecting ongoing data writing. Snapshot Replica replicates snapshot files to the backup NAS, simplifying data protection with version control.

• HBS simplifies 3-2-1 backup plans

  HBS centralizes backup, restoration, and synchronization for easily transferring data in the TDS-h6889AXU-RP to another QNAP NAS, remote server, or cloud storage space. HBS supports QuDedup technology that eliminates redundant data at the source and makes multi-version backup faster.

  Learn More: HBS backup and restore

PCIe Gen5 Slots for Future Expansion

The TDS-h6889AXU-RP provides six PCIe Gen5 slots. A dual-port 25GbE SFP28 adapter and a tri-mode SAS HBA come pre-installed, leaving four full-height slots to grow with your workloads.

• Network Expansion: 25/100 GbE Cards

  Upgrade to 100 GbE for bandwidth-hungry media, AI, and backup workloads, or add more 25GbE ports for multi-team concurrent access.

  QNAP network expansion cards

• Storage Expansion: External SAS Cards

  Install QXP-1630S-3816 or QXP-830S-3808 external SAS 12Gb/s cards to connect TL SAS JBOD expansion enclosures for petabyte-scale growth.

• Fibre Channel SAN

  Add a QXP Fibre Channel card to integrate the TDS-h6889AXU-RP into existing FC SAN environments as high-capacity, ZFS-protected Fibre Channel storage.

  Fibre Channel solution

High-Performance AI Infrastructure: Ignite Storage Efficiency with NFS over RDMA

In the era of AI computing, Large Language Models (LLM), and big data analytics, traditional network protocols often become bottlenecks for massive data throughput. QNAP introduces NFS over RDMA, creating a high-speed "express lane" between AI servers and the NAS. By bypassing CPU overhead and enabling direct memory access, NFS over RDMA significantly slashes transmission latency, ensuring that AI training tasks maintain peak I/O responsiveness even under heavy workloads.

Minimum System Requirements: To enable the NFS over RDMA feature, your NAS must be updated to QTS 5.2.6, QuTS hero h5.2.6, or later versions. Additionally, we recommend pairing this feature with a RoCE-supported All-flash storage architecture to achieve optimal performance. Please refer to the following link for the NAS compatibility list for the QXG-100G2SF-BCM expansion card: QNAP Compatibility List.

Built for the Data Center Floor: Top-Loading Service, Zero Downtime Maintenance

Every drive is serviced from the top: slide the chassis forward on its rails, open the cover, and hot-swap without removing the system from the rack or disturbing neighboring equipment. The front status window pinpoints any drive by its bay number before you even open the cover, hot-swappable fans with front-to-back airflow provide cooling redundancy, and the entire system draws less than 1.5 kW at full load.

Full-system power consumption measured in QNAP Labs under maximum load (60 HDDs, 6 U.2 SSDs, and maximum PCIe configuration). Figures may vary by configuration.

All-in-one backup solution

The TDS-h6889AXU-RP supports various apps that cover all your backup needs. See all

• NAS/File server

  Supports multiple protocols such as Rsync, FTP and CIFS/SMB for backing up different file servers.

• Cloud

  Back up NAS data to/from major cloud services, including QNAP’s myQNAPcloud One.

• Mac

  Set a QNAP NAS as Time Machine backup destination.

• Windows® PC/Server

  Back up full PC/server systems and manage all backups from multiple devices through a single interface. Learn more

• VM

  Back up VMware® vSphere and Microsoft® Hyper-V with dramatically lower costs than others. Explore

• Google™ Workspace/Microsoft 365®

  Use QNAP’s HDP for SaaS to back up, recover, and manage the data of 10,000+ users over multiple Google™ Workspace and Microsoft 365®.

• WordPress

  Backup, restore or migrate your WordPress site. QNAP NAS can also host a website. Learn more

Secondary backup or restore

By supporting secondary backup, replication, or restore in a single interface, QNAP makes your business Disaster Recovery (DR) quick, easy, and effective. Explore more >

• NAS and file server

  Backup NAS data to another QNAP NAS or remote server. Supports immutable backups by using WORM folders as the destination, preventing data from being overwritten, modified, or deleted to effectively protect against ransomware.

• Cloud

  Supports advanced technologies to save backup time, spaces, and effort.

• myQNAPcloud One

  QNAP-hosted cloud storage that only charges for storage space, with transmitting data being completely free.

RPO = 0 real-time replication

Real-time SnapSync syncs between shared folders/LUNs on primary NAS and secondary NAS. This assists organizations in resuming essential data and services in the shortest time. Learn more

Double your protection with hybrid cloud:

Backup to myQNAPcloud Storage and access anytime

Back up your TDS-h6889AXU-RP to myQNAPcloud Storage using Hybrid Backup Sync for secure, efficient data management—without any additional bandwidth fees.
The TDS-h6889AXU-RP also supports 20+ major public clouds, ensuring near-LAN access speeds for seamless cloud sharing and multi-point synchronization.

Get 16GB free

Surveillance NAS solution for Business

Surveillance NAS is an easy-to-deploy and cost-efficient all-in-one intelligent surveillance platform that integrates AI analytics, video backup and fault tolerance, centralized management (CMS), and surveillance cloud services, meeting professional surveillance requirements across diverse deployment scenarios. A single NAS supports up to 1,024 channels, leveraging file-based writing technology to enhance processing performance and meet the demands of multi-channel, high-capacity, and long-duration recording. Learn more about QVR Surveillance NAS solution

• Simplifying surveillance structure

  An all-in-one surveillance solution integrating NVR and VMS. Record, analyze and manage videos on surveillance NAS to boost deployment and maintenance efficiency.

  Check out how an international carmaker uses Surveillance NAS to significantly reduce surveillance deployment costs

• Support ONVIF® cameras

  Over 8000 ONVIF cameras from 200+ brands are supported.

  Check out compatible cameras

• PoE switch solution

  QNAP offers a one-stop QNAP PoE switch solution designed for connecting TDS-h6889AXU-RP NAS and IP cameras to simplify network and power cabling.

• PC-less surveillance solution

  Use two HDMI™ outputs of TDS-h6889AXU-RP for dual-screen extension to play and switch between multi-channel videos on two monitors.

• Smart AI surveillance

  Surveillance NAS performs AI image identification, analysis and search on the NVR server side, saving you from having to purchase expensive AI cameras.

• Flexible storage expansion and secure video backup

  The longer video retention periods you require, the greater the storage capacity needed. You can connect QNAP JBOD expansion enclosures to TDS-h6889AXU-RP, or back up surveillance recordings to a QVR Recording Vault backup server or myQNAPcloud Surveillance.

QNAP solves all your surveillance system challenges in business

Trouble finding surveillance footage when the exact time of events is unknown?

How to efficiently centralize backup of multi-site surveillance footage from various branches/stores to the headquarters?

Difficulties using third-party’s surveillance APIs on your existing surveillance systems?

IP cameras require network and power. Check out how a retailer deploys surveillance network with QVR surveillance solution.

Trusted storage for virtualization

Powerful yet affordable

Cost-effective iSCSI/IP-SAN storage solutions with high bandwidth for reduced latency.

Flexible & Scalable

Supports multiple protocols and expansion options to meet business needs.

Data protection

Offers LUN encryption, snapshots, and backup to ensure data safety.

Object storage certified as Veeam® Ready

Use the TDS-h6889AXU-RP with QuObjects as the premier destination for S3 object storage and backup. QuObjects supports Object Lock, validated as Veeam® Ready – Object with Immutability. Learn More

Build an affordable Fibre Channel SAN environment

Common Fibre Channel Storage Area Networks (SAN) devices are often costly. By installing QNAP dual-port Fibre Channel expansion cards in the TDS-h6889AXU-RP, you have more budget-friendly options to add a NAS to a SAN environment. You can set a Fibre Channel Target using the iSCSI & Fibre Channel app. Moreover, the LUN Masking and Port Binding features provide an additional layer of data security.

Learn More: QNAP NAS supports Fibre Channel SAN, QNAP Fibre Channel cards

Adaptable to Diverse Application Scenarios

Application Scenario	TDS-h6889AXU-RP Advantages
Video Surveillance Archive	Over 1 PB of usable capacity retains years of continuous multi-channel recordings. Inline compression extends retention further, and the built-in NVMe flash tier absorbs write bursts from thousands of cameras.
Media & Entertainment (M&E)	Multiple editing workstations collaborate in real time on 4K/8K footage stored directly on the NAS - with dual-port 25GbE built in and 100GbE upgrade options for the most demanding multi-stream timelines.
AI & Big Data Analytics	Consolidate training datasets into a single storage pool that scales to 5 PB, and feed external GPU compute clusters at wire speed over 25/100GbE networking.
Backup & Disaster Recovery	License-free backup applications with Veeam-ready certification, near-limitless ZFS snapshots, and block-level SnapSync replication keep an off-site copy current for rapid recovery.

5-year warranty as standard

The TDS-h6889AXU-RP is backed by a 5-year warranty at no extra cost – providing your business organization with greater peace of mind.

QNAP Warranty Service

NAS Recovery Guide