QSAN XN5 Series — Performance-Oriented All-NVMe Unified Storage
Enterprise unified, NVMe across the bus.
The QSAN XN5 series is the flagship of the new dual-active NVMe unified line. Same 26-bay chassis platform as the [XF5 series](/vendors/qsan/products/xf5-series) block array, but configured for higher sustained IOPS and the lowest latency QSM 4 can deliver. For Australian enterprises running mission-critical workloads — virtualisation at scale, database hosting, low-latency file collaboration — the XN5226 is the unified-protocol option that doesn't force a separate SAN-plus-NAS purchase.
QSM 4 brings the full enterprise data-services suite to the array: WORM compliance, SED encryption at folder/pool/drive level, XMirror replication across geographies, public-cloud tier-out, snapshot and replication policies, deduplication and compression. The shared platform with XF5 means partners get an upper bound on performance from the XF5's published figures — 50,000 random-write IOPS at 100µs latency (100,000 at 200µs) on PCIe Gen4. Mirrored firmware HA delivers 99.9999%+ availability through controller events.
For tier-1 Australian enterprise primary storage, financial services back office, AI/ML training data lakes serving NFSv4 reads to GPU nodes alongside iSCSI targets to feature-store databases, and large MSPs with mixed-protocol enterprise tenants — the XN5 is QSAN's answer to NetApp AFF C-series and Dell PowerStore 1000T+ at price points 30–50% below.






Controllers
Dual active-active controllers (HA) with mirrored firmware
Drive Bays
26-bay NVMe (2.5" U.2 NVMe SSDs) in 2U
Protocols
iSCSI block + CIFS / NFS / AFP / FTP / WebDAV file
Operating System
QSM 4 — 128-bit ZFS-based unified management with cross-platform replication
Availability
99.9999%+ uptime via mirrored firmware design
Performance Reference
Shared platform with XF5 (50,000 random-write IOPS @ 100µs, PCIe Gen4 NVMe upper bound)
Data Services
WORM, SED, XMirror geo-replication, deduplication, compression, snapshots
Hardware Platform
Shared chassis with XF5 series and KS2 (qs_hm_XF52-XN52, qs_hm_KS22-XN52)
The XN5 competes directly against NetApp AFF C-series and Dell PowerStore 1000T+. Pure FlashArray//C is a near match on raw performance but Pure won't sell unified — they'd push FlashBlade for file. QSAN's true active-active dual controllers plus ZFS data integrity give a credible technical story; pricing typically lands 30–50% below NetApp AFF for similar raw IOPS. QSM 4's cross-platform replication into XEVO 3 block arrays remains the structural differentiator that NetApp, Dell, and Pure don't offer between their own product lines.
One of the advantages of working with CRS — we can recommend the best combination of vendors for your specific needs.
NAKIVO
NAKIVO protects XN5-hosted VMs and file shares with snapshot-integrated agentless backup.
Proxmox
Proxmox VE clusters use XN5 as a unified storage backend — iSCSI for VMs, NFS for shared resources.
StoneFly
Replicate XN5 to StoneFly immutable DR appliances for air-gapped recovery from ransomware events.
StarWind
StarWind VTL on XN5 NVMe for high-performance backup-target performance.
QSAN XN5 Series is available through Cloud Ready Solutions and our network of authorised partners across Australia, New Zealand, and the Pacific.
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