Is QSAN's enterprise claim real or just marketing?

Real. QSAN has been building enterprise storage since 2004 and their dual-active-controller architecture (XCubeSAN, XcubeNXT) delivers zero-downtime failover during controller maintenance or failure. XCubeSAN 5300 benchmarks at 1.8M IOPS, XF5 pushes beyond into all-NVMe territory. Independent third-party benchmarks back the spec claims.

Can I use third-party drives with QSAN?

Yes. QSAN supports Seagate, Western Digital, Toshiba, and other major drive manufacturers across their product range. This is a significant advantage over Dell and HPE, which require branded drives. It also advantages QSAN over some newer Synology models where drive compatibility lists have tightened.

Does Synology's High Availability match QSAN dual-controller?

Not quite. Synology High Availability is a cluster-pair architecture where a second Synology unit acts as a standby. Failover is faster than cold failover but slower than QSAN's active-active dual-controller architecture, which keeps serving data during a controller failure without any failover event at all.

What about the DSM apps, can QSAN do those things?

For storage workloads yes, for the broader DSM ecosystem (surveillance, productivity, etc.) no. QSAN is a storage-focused product. If the customer wants the NAS to also run surveillance recording and host productivity apps, Synology is the better fit. If the customer wants the NAS to do storage really well, QSAN.

What does a typical mid-market QSAN deployment cost?

Depends heavily on configuration. A QSAN XCubeSAN with 24 drives and dual controllers typically lands AUD 25,000-45,000 including discs. A comparable Dell PowerVault ME5 lands 30-50% higher. A Synology SA-series of similar raw capacity is 30-50% lower but without dual-active controllers. QSAN sits in the middle tier where enterprise features are accessible without tier-one pricing.

Comparison Guide

QSAN vs Synology: When to Graduate from SMB NAS to Enterprise Storage (2026)

Synology is great until it isn't. When dual controllers, SAS, and enterprise IOPS become requirements.

Option A

QSAN

Enterprise unified storage from XN2 to XF5.

Option B

Synology

The mass-market NAS leader.

Quick Summary

Synology is the right answer for a lot of small and mid-small businesses. The RS/DS series at 20-50 TB with SATA drives and DSM is genuinely good value. QSAN comes in when any of these become requirements: dual-controller redundancy (no downtime on controller failure), SAS drives (higher IOPS, enterprise reliability), enterprise IOPS ceiling (Synology caps out relatively low), or SLA-backed AU support. The graduation point is usually around the moment the customer starts hosting production databases, VMware clusters, or anything where 'the NAS went down for 2 hours while we replaced a part' stops being acceptable.

QSAN

QSAN's product range spans XN2 SMB NAS, XCubeSAN dual-active SAN, XcubeNXT unified dual-active storage, and XF5 all-NVMe flash arrays. Third-party drive support, dual-controller HA, enterprise IOPS, and 10GbE native across most of the range.

Synology

Synology's RS and DS series NAS devices are the SMB standard. Single-controller, typically SATA drives, DSM operating system with an enormous app ecosystem. Consumer-grade prices and support; solid for workloads that fit the profile.

Head-to-head comparison

Feature	QQSAN	SYSynology
Controller architecture	Single (XN2) or Dual-active (XCubeSAN, XcubeNXT, XF5)	Single controller only (all models)
Drive interface	SAS + SATA + NVMe depending on model	SATA primarily, NVMe for cache on higher models
Third-party drive support	Yes (bring your own discs)	Official drive compatibility list (restricted on newer models)
Maximum IOPS	1.8M (XcubeSAN), higher on XF5	Typically 100-300K IOPS range
Unified block + file	Yes (iSCSI, FC, NFS, SMB)	Yes (iSCSI, NFS, SMB)
Object storage (S3)	Yes (on XcubeNXT and select models)	Via Synology C2 (separate cloud service)
HA during controller failure	Zero-downtime on dual-active models	Cluster pair via Synology High Availability (slower failover)
Operating system	QSM / SANOS / XEVO (QSAN proprietary)	DSM (polished, largest NAS app ecosystem)
App ecosystem	Focused on storage workloads	Enormous (surveillance, productivity, backup, etc.)
AU support + SLA	CRS distribution, AUD, local SLA	Synology AU presence + channel
Target workload	Production databases, VMware clusters, multi-PB archives	SMB file shares, backup target, workgroup storage
Entry cost	Higher (enterprise hardware)	Lower (consumer/SMB pricing)

Highlighted cells show where one product has a clear advantage for the majority of Australian mid-market and MSP use cases. Ties are unhighlighted.

When Synology is the right answer

We're not going to pretend Synology isn't a fantastic product for the workloads it serves. For a small business with 20-50 TB of file shares, weekly backup targets, and maybe a surveillance recording system, a Synology RS-series device with DSM is genuinely great value. DSM is polished, the app ecosystem is enormous, and the price point is accessible.

For those workloads, QSAN is probably overkill. Enterprise-grade storage with dual-active controllers and SAS drives is the wrong answer when the actual requirement is 'a NAS for a 30-person office'.

The comparison matters when the customer has outgrown what Synology can do well, and Synology's own limitations start to bite. That moment is more predictable than it seems.

The graduation point

Three things typically trigger a move from Synology to enterprise storage:

Controller redundancy. Synology's single-controller architecture means a hardware failure on the controller takes the whole NAS offline until the controller is replaced. For a file share this is inconvenient. For a VMware datastore serving production VMs, or a SQL database on iSCSI, it's unacceptable. QSAN's dual-active models (XCubeSAN, XcubeNXT, XF5) keep serving data when one controller fails.

IOPS ceiling. Synology's RS and SA series typically top out at 100-300K IOPS depending on model and workload mix. That's fine for file shares. For a busy VMware cluster with 40 VMs, a SQL Server environment, or a VDI deployment, you often need 500K-2M IOPS. QSAN's XCubeSAN delivers 1.8M IOPS; XF5 pushes beyond that.

SLA-backed support. Synology's support is competent but consumer-grade: online chat, email response, community forums for most issues. For production workloads where the NAS going down costs the business money, partners want a phone number, a named account, and an SLA. CRS provides that for QSAN in Australia.

Why AU partners care about QSAN specifically

Two reasons QSAN rather than Dell EMC, NetApp, or HPE MSA.

Price point. QSAN delivers enterprise features (dual-active controllers, SAS, enterprise IOPS) at pricing that sits meaningfully below Dell, HPE, and NetApp. For mid-market customers who've outgrown Synology but can't justify tier-one enterprise pricing, QSAN fills a gap that other vendors don't serve well.

Third-party drive support. QSAN supports drives from Seagate, Western Digital, Toshiba, and other major manufacturers. Dell and HPE lock you into branded drives at significant markup. For capacity expansion over a 5-year lifecycle, the difference in drive economics is material. Synology has moved toward more restrictive drive compatibility on newer models, which is another reason for partners to look at QSAN when drive costs matter.

CRS's AU distribution means QSAN ships with AUD billing, local warranty, and engineering escalation for partners. The experience is closer to distributing a local enterprise vendor than importing from overseas.

Where Synology still wins

Three things Synology does better than QSAN, acknowledged.

DSM and the app ecosystem. DSM is one of the best NAS operating systems on the market. The package centre has 100+ apps covering surveillance (Surveillance Station), productivity (Synology Office, Drive), backup (Active Backup for Business), and much more. QSAN's QSM/XEVO/SANOS are focused on storage workloads and don't have an equivalent app ecosystem.

Price for small deployments. A Synology DS-series with 4-6 SATA drives handles most small-business file share workloads at a price QSAN can't beat. At that size, Synology is the right answer and we're happy to tell you so.

Brand recognition. 'Get a Synology' is a recommendation that doesn't need explaining to an SMB owner. 'Get a QSAN' requires a sales conversation about what QSAN is and why it's different. For pure SMB sales motion, Synology's brand is an advantage.

When to choose each

Choose Synology when:

The workload is SMB file shares, workgroup storage, or backup targets under 50 TB.
No single-point-of-failure concern (the NAS can be offline for a few hours without material business impact).
DSM's app ecosystem (Surveillance Station, Active Backup, Synology Office) is part of the value proposition.
The customer budget is SMB-scale.

Choose QSAN when:

Production workloads (VMware datastores, SQL, VDI) need dual-controller HA.
IOPS ceiling matters (enterprise virtualisation, databases).
Storage capacity is growing past 100 TB where tier-one vendors become unaffordable.
AU SLA-backed support is required.
Drive economics (third-party drive support, capacity expansion cost) matter over multi-year lifecycle.

Frequently asked questions

Three triggers, any one of which moves the conversation: the NAS is hosting production databases or VMware/Hyper-V clusters where outage costs money, sustained IOPS requirement exceeds Synology performance ceilings, or compliance/business-continuity requires SLA-backed support. If none apply, Synology is usually still the right answer.

Outgrowing Synology?

CRS distributes QSAN enterprise storage across ANZ and the Pacific with AUD billing, local SLA support, and third-party drive support. We will size the right product against your workload and compare TCO against Synology HA and tier-one alternatives.