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Block storage and tape · AB · HB · DX S6 · LT

Fujitsu ETERNUS storage
All-flash, hybrid, enterprise and tape, under Fsas

ETERNUS is the storage half of what moved from Fujitsu to Fsas Technologies. This page covers three block storage lines, from small sites to large data centres, and two LT tape systems for backup and archive, set out from their datasheets. Fsas also lists the ETERNUS EP300, AB3100, AB6100 and CS8000, which are not covered here.
3 + tape[src]
ETERNUS LINES COVERED HERE
91 PB[src]
DX8900 S6, SSD MAXIMUM
CONTROLLERS, DX8900 S6
64 Gb[src]
NVME/FC, AB3200 AND AB6200
SLOTS, ETERNUS LT140
3 years[src]
ARRAY WARRANTY
Overview

The ETERNUS storage lines

Fujitsu ETERNUS storage now comes from Fsas Technologies. This page covers three block storage lines, AB all-flash, HB hybrid and DX S6, plus LT tape[src][src][src][src].

AB and HB are documented together and share a feature set: dual controllers, REST APIs, Ansible and plug-ins for Splunk and Nagios, and RAID including DDP[src][src]. DX S6 runs from the dual-controller DX600 S6 to the DX8900 S6, which scales out to 16 controllers, with thin provisioning, automated storage tiering, active-active transparent failover, quality-of-service management and selective deduplication and compression[src].

ETERNUS maximum capacity by modelCapacities are raw maximums with the largest supported drives.Maximum capacity, TB (log scale)HB1400Hybrid, 2.5-inch194.4 TBHB1300Hybrid, 3.5-inch576 TBAB3200All-flash, NVMe SSD1.5 PBAB6200All-flash, NVMe SSD1.5 PBAB2200All-flash, SAS SSD1.8 PBHB2400Hybrid6 PBHB2500Hybrid6.1 PBHB2600Hybrid7.2 PBDX600 S6Hybrid or all-flash29.1 PBDX900 S6Hybrid or all-flash70 PBDX8900 S6Hybrid or all-flash91 PBCapacities are raw maximums with the largest supported drives.
Maximum capacity from each datasheet, on a log scale. DX figures are the SSD maximum; their hard-disk maximums are lower (8.4, 20.3 and 26 PB). AB3200 and AB6200 share one figure.
Choosing a line

AB, HB or DX S6

The three lines differ in media, scale and features more than in brand[src][src][src].
ETERNUS AB, HB and DX S6 comparedDX S6 drives: NVMe SSDs to 15.36 TB, SAS SSDs to 30.72 TB, 10k SAS and 7.2k Nearline SAS HDDs to 18 TB.ABHBDX S6MediaAll-flashSSD + HDDSSD, NVMe + HDDControllers222 to 16Most drives120 (AB2200)300 (HB2600)3,072NVMe host connectionsAB3200, AB6200——FC host speed, max32 Gb; 64 NVMe/FC32 Gb64 GbRAID DDP✓✓—RAID 5+0——✓Automated tieringNot listedNot listed✓Warranty3 years3 years3 yearsDX S6 drives: NVMe SSDs to 15.36 TB, SAS SSDs to 30.72 TB, 10k SAS and 7.2k Nearline SAS HDDs to 18 TB.
From the AB, HB and DX S6 datasheets. Of the arrays covered here, NVMe over Fabrics is on the AB3200 and AB6200 only; DX S6 adds NVMe drives inside the array, not NVMe host connections.
Specifications

ETERNUS disk array specifications

ModelTypeMost drivesMaximumHost interfacesRAID
AB2200All-flash, SAS SSD1201.8 PB[src]FC 32 Gb, iSCSI 10/25 Gb, SAS 12 Gb0, 1, 10, 3, 5, 6, DDP
AB3200All-flash, NVMe SSD—1.5 PB[src]NVMe/FC 32 or 64 Gb0, 1, 10, 5, 6, DDP
AB6200All-flash, NVMe SSD—1.5 PB[src]NVMe/FC 32 or 64 Gb, NVMe/IB 100 or 200 Gb0, 1, 10, 5, 6, DDP
HB1300Hybrid, 3.5-inch24576 TB[src]FC 32 Gb, iSCSI 10 or 25 Gb0, 1, 10, 3, 5, 6, DDP
HB1400Hybrid, 2.5-inch48194.4 TB[src]FC 32 Gb, iSCSI 10/25 Gb0, 1, 10, 3, 5, 6, DDP
HB2400Hybrid2526 PB[src]FC 32 Gb, iSCSI 10/25 Gb, SAS 12 Gb0, 1, 10, 3, 5, 6, DDP
HB2500Hybrid2646.1 PB[src]FC 32 Gb, iSCSI 10/25 Gb, SAS 12 Gb0, 1, 10, 3, 5, 6, DDP
HB2600Hybrid3007.2 PB[src]FC 32 Gb, iSCSI 10/25 Gb, SAS 12 Gb0, 1, 10, 3, 5, 6, DDP
DX600 S6Hybrid or all-flash96029.1 PB[src]FC 16/32/64 Gb, iSCSI 10 Gb0, 1, 10, 5, 50, 6
DX900 S6Hybrid or all-flash2,30470 PB[src]FC 16/32/64 Gb, iSCSI 10 Gb0, 1, 10, 5, 50, 6
DX8900 S6Hybrid or all-flash3,07291 PB[src]FC 16/32/64 Gb, iSCSI 10 Gb0, 1, 10, 5, 50, 6

From each model's datasheet. DX S6 hard-disk maximums: DX600 S6 8.4 PB, DX900 S6 20.3 PB, DX8900 S6 26 PB. DX system memory runs from 2,048 GB (DX600 S6) to 16 TB (DX8900 S6), with Extreme Cache pools of 25.6 to 204.8 TB[src][src].

Tape

ETERNUS LT tape

Fsas lists two LT systems, both for LTO-9 (18 TB native) and LTO-8 (12 TB native) media[src][src].
ETERNUS LT20 S3 against LT140Both have a management Ethernet port; the LT140 runs on 100–240 V AC, the LT20 S3 on 85–264 V.LT20 S3LT140Form1U3U base, up to 42UDrives1 half-height1–14 full-height or 1–42 half-heightSlots8 + 1 mail slot20 to 560MediaLTO-9 or LTO-8LTO-9 or LTO-8Warranty1 year1 yearBoth have a management Ethernet port; the LT140 runs on 100–240 V AC, the LT20 S3 on 85–264 V.
From the LT20 S3 and LT140 datasheets. Compressed capacity in Fsas's figures assumes 2.5:1, which depends on the data.

At 560 slots of 18 TB LTO-9, a full LT140 holds 10,080 TB native (our arithmetic). Fsas also resells Quantum tape and DXi appliances[src]. Quantum tape and DXi →

Good to know

Buying ETERNUS

Warranty

3 years on arrays, 1 on tape

Arrays list a 3-year onsite warranty; the LT20 S3 and LT140 list 1 year[src][src].
Availability

Six nines is a design, not a promise

Fsas's datasheets say high availability depends on the user setting up redundancy and clustering[src].
Management

ISM covers ETERNUS too

Infrastructure Manager supports ETERNUS AB, AF, AX, DX, EP, HB, HX and LT[src]. iRMC and ISM →
Encryption

Self-encrypting drives

SED SSDs are listed across AB, HB and DX S6, and FIPS drives on some models[src][src][src].
Supply & quote

Get ETERNUS storage sized and quoted

  • We size capacity and performance from your workloads, not the maximum in the datasheet.
  • We choose between AB, HB and DX S6, or tell you when another platform fits better.
  • We design the high-availability set-up the datasheets leave to you.
  • We quote the array, drives and Fsas support together.

Get a PRIMERGY or ETERNUS quote

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FAQs

ETERNUS storage: common questions

What is the difference between ETERNUS AB, HB and DX?

AB is all-flash block storage, HB is hybrid SSD and hard-disk block storage, and DX S6 runs from the dual-controller DX600 S6 to the DX8900 S6, with automated tiering and quality-of-service management. AB and HB are documented together and share a feature set; the DX8900 S6 scales out to 16 controllers and thousands of drives.

Which ETERNUS arrays support NVMe over Fabrics?

Of the arrays on this page, the ETERNUS AB3200 and AB6200, per their datasheets: NVMe/FC at 32 or 64 Gb on both, and NVMe/InfiniBand at 100 or 200 Gb on the AB6200. The AB2200 uses Fibre Channel, iSCSI and SAS host interfaces with SAS SSDs.

How large can an ETERNUS DX S6 grow?

The DX8900 S6 scales from 2 to 16 controllers, 3,072 drives and up to 91 PB of SSD capacity, with 16 TB of system memory. The DX900 S6 reaches 2,304 drives and 70 PB of SSD, and the DX600 S6 960 drives and 29 PB.

Does ETERNUS guarantee 99.9999% availability?

Fsas markets the AB and HB lines as engineered for greater than 99.9999% availability, but the datasheets also say high availability is not a standalone product feature: it depends on the user setting up the redundancy, clustering and operating conditions needed. Treat it as a design capability, not a promise.

Does Fsas still sell ETERNUS tape?

Yes: the 1U ETERNUS LT20 S3 with one half-height drive and 8 slots, and the ETERNUS LT140 library from 20 to 560 slots with up to 14 full-height or 42 half-height drives, both for LTO-9 and LTO-8. Both list a 1-year warranty.

Does Fsas sell other vendors’ storage?

Yes. Alongside ETERNUS, Fsas’s UK site lists NetApp, Quantum, Cohesity, Commvault and Qumulo products in its storage portfolio. We cover Quantum tape and backup separately.

The Fsas Technologies range

More PRIMERGY and ETERNUS pages

Keep exploring

Related Servnet guides, tools and hardware

Sources

Every specification on this page comes from Fsas Technologies' own datasheets, web pages and support portal, listed below with their dates. Where a datasheet and other Fsas material disagree, we use the datasheet. Figures are confirmed against the current revision when we quote.

  1. Data sheet: ETERNUS AB2200 · PDF dated 2 Oct 2026
  2. Data sheet: ETERNUS AB3200 · PDF dated 2 Oct 2026
  3. Data sheet: ETERNUS AB6200 · PDF dated 2 Oct 2026
  4. Data sheet: ETERNUS HB1300 · PDF dated 2 Oct 2026
  5. Data sheet: ETERNUS HB1400 · PDF dated 2 Oct 2026
  6. Data sheet: ETERNUS HB2400 · PDF dated 2 Oct 2026
  7. Data sheet: ETERNUS HB2500 · PDF dated 2 Oct 2026
  8. Data sheet: ETERNUS HB2600 · PDF dated 2 Oct 2026
  9. Data sheet: ETERNUS DX600 S6 · PDF dated 2 Oct 2026
  10. Data sheet: ETERNUS DX900 S6 · PDF dated 2 Oct 2026
  11. Data sheet: ETERNUS DX8900 S6 · PDF dated 2 Oct 2026
  12. Data sheet: ETERNUS LT20 S3 · PDF dated 2 Oct 2026
  13. Data sheet: ETERNUS LT140 · PDF dated 2 Oct 2026
  14. Data sheet: Infrastructure Manager (ISM) · PDF dated 2 Oct 2026
  15. Fsas UK: Storage and data protection products · web page, read 30 Oct 2026

Fujitsu, PRIMERGY, ETERNUS and iRMC are trademarks of Fujitsu; Fsas Technologies is a Fujitsu Group company. Intel, Xeon, AMD, EPYC and NVIDIA are trademarks of their owners. Servnet is an independent UK IT reseller; this page is our own guide to the range.

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