QSAN Unified Storage
XN4226D-4C

Resilient, Scalable Performance for Enterprises

QSAN XN4 series is an enterprise-level NVMe flash storage solution with flexible and scalable performance. With μs-level latency, the XN4 assists enterprises in meeting the responsiveness needs of most enterprise applications. The XN4 is ideal for modern applications including media production, virtualization, and high-speed IT infrastructure alike.

Accelerate Your Business with µs-Level Latency

The XN4 series features an NVMe SSD architecture designed to ensure consistent response times, prioritizing steady performance instead of occasional peak throughput. Tailored for enterprise high-performance computing infrastructures, it delivers high IOPS with latency at the microsecond level. With minimal latency concerns, applications are shielded from slowdowns or halts caused by high response times. Matching with the RDMA technology, XN4 can mostly eliminate the latency when accessing data from the host to the drive.

Always-on for Business

XN4 is equipped with mirrored firmware architecture, built-in hot-swappable, and fully redundant hardware design, streamlining maintenance and upgrades. Its dual active controllers operate, and online firmware upgrades deliver seamless storage services in real-time, guaranteeing uninterrupted service delivery with zero downtime.

Sweatless Management Experience

QSM continuously evolves security levels to protect data across storage and adhere to industry best practices. Supporting SED (Self-Encrypting Drives) coupled with WORM (Write Once Read Many) will keep your sensitive data safe even if the drives are lost, stolen, or misplaced. Additionally, Windows ACL (Access Control List) and RBAC (Role-Based Access Control) help to prevent unauthorized access to your data.

Reduce Business Overhead through Data Reduction

Equipped with advanced data reduction capabilities, including deduplication and compression, the XN4 offers unparalleled efficiency, allowing businesses to significantly reduce overhead costs.

Key Benefits

Unparalleled Performance

• 100% NVMe 2U26 high density architecture
• Onboard 10 GbE LAN port and flexible highspeed I/O expansion

Enterprise Reliability

• 99.9999% high availability with mirrored firmware architecture and overall modular design performs no single point of failure
• Never lose any data at cache-to-flash memory protection solution
• Non-disruptive firmware upgrade and backup appliance reach zero downtime

Effortless Management

• Simplify the steps of upgrading and replacing system components with modular hardware design
• QSM – the operation system for flash storage reduces learning and maintenance efforts through our innovative interface design
•  Support RESTful API, SNMP, and emailing for external management or use QSAN XInsight, smarter data management with simplified platform and intelligent engine

System Specification

Model Name	XF4226D-4C	XF4226S-4C
Architecture	Dual-active controller	Single-upgradable controller
CPU
Processor	Intel® Xeon® 4-core x 2	Intel® Xeon® 4-core
Memory
Memory Module Pre-installed	32 GB DDR4 DIMM	16 GB DDR4 DIMM
Total Memory Slots	16	8
Memory Expandable up to	2,048 GB	1,024 GB
Storage
Drive Bays	2.5″ Slot x 26
Maximum Drive Bays with Expansion Unit	650
Compatible Drive Type	2.5″ dual-port U.2 NVMe SSD (for internal & JBOF) 2.5″ SAS SSD (for SAS JBOD) 3.5″ SAS HDD (for SAS JBOD)	2.5″ single-port U.2 NVMe SSD (for internal & JBOF) 2.5″ SAS SSD (for SAS JBOD) 3.5″ SAS HDD (for SAS JBOD)
Drive Interface	U.2 NVMe (PCIe Gen 4) SAS 12 Gb/s (for SAS JBOD)
Maximum Internal Raw Capacity	1,597 TB
Maximum Raw Capacity with Expansion	23,961 TB
Hot Swappable Drive	Yes
Connectivity Port
PCIe Expansion	(Gen 4×8 Slot) x 4	(Gen 4×8 Slot) x 2
2.5 GbE RJ45 LAN Port	2 (onboard management port)	1 (onboard management port)
10 GbE SFP+ LAN Port	8 (onboard) / 2 (option) / 4 (option)	4 (onboard) / 2 (option) / 4 (option)
10 GbE RJ45 LAN Port	2 (option) / 4 (option)
25 GbE SFP28 LAN Port	2 (option) / 4 (option)
100 GbE QSFP LAN Port	2 (option)
16 Gb SFP+ Fibre Channel	2 (option) / 4 (option)
32 Gb SFP28 Fibre Channel	2 (option) / 4 (option)
Expansion and External Port
12 Gb/s SAS Wide Port to SAS JBOD	4 (onboard)	2 (onboard)
10 / 25 / 100 GbE LAN Port to JBOF	Up to 4 JBOF
USB Port	1 (front) / 2 (rear)	1 (front) / 1 (rear)
Others	Console Port x 2, Service Port x 2	Console Port x 1, Service Port x 1
Software Specification
Storage OS	XEVO 3
RAID Type	0 / 1 / 5 / 6 / 10 / 50 / 60 / 5EE / 6EE / 50EE / 60EE
Storage Efficiency	Thin provisioning / Compression and Deduplication (option)
Software Acceleration	SSD Cache / Auto tiering / RDMA
Data Protection	Snapshot / Asynchronous / Synchronous (option)
Security	SSL / SSH / iSCSI CHAP / ISE & SED
Support Protocols	iSCSI / FCP / NVMe-oF
Management	Web UI / RESTful API / S.E.S. / LCM
Appearance
Dimension (H x W x D) (mm)	88 x 438 x 573
Net Weight (kg)	19.6	16.5
Gross Weight (kg)	28.6	25.5
Others
Memory Protection	Cache-to-Flash Module (built-in)
System Fan	8 pcs	4 pcs
Power Supply Unit	850 W x 2 (80 Plus Platinum)
Power Input	100 – 240 VAC, 50/60 Hz
Power Consumption	812 W / 2,770 BTU
Certification	CE / FCC / BSMI
Standard Warranty	System: 5 years Cache-to-Flash Module: 1 year