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K2Q81A
- Description:
- HP StoreVirtual 4335 Hybrid SAN Solution
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3 Year Extended Warranty
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Smaller shipments go via DHL or FedEx Express — delivered worldwide in approximately 3 business days.
Over 100 KG? Ships via Freight.
Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.
Always Delivered to Your Door
Every shipment is delivered directly to your address — regardless of country or carrier.
Our best-in-class warranties
3-Year Extended Warranty
Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
Professional repairs & replacements.
If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
Service Boundaries & Exclusions
What’s covered — and what’s best avoided.
Your warranty covers defects under normal use. For continued protection, avoid accidental damage, unauthorized repairs, third-party parts, or extreme environments.
Know your location’s service type.
In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
Minimal documentation required.
To initiate service, just submit the invoice and warranty card — no red tape, no waiting.
14-Day Money Back Guarantee
Free 14-Day Returns
Tested it, but it’s not a fit?
Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.
Initiate returns with ease.
Our RMA process is streamlined — just raise a request, follow the packaging guidelines, and we’ll handle the rest.
Refund or restock, your call.
Changed your mind? Get a refund (restocking fees may apply) or swap with another product.
30-Day Hardware Replacement
Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
Once your return is inspected and approved, we dispatch the replacement promptly to keep your operations moving.
RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
TRUSTED, TRIED, PROVEN
K2Q81A Overview
K2Q81A is a NAS storage system featuring 4-bay drive capacity that supports a mixed configuration of SATA HDDs and SATA SSDs, delivering a total storage capacity of 64 TB with RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10 options. It is engineered to meet data protection and performance requirements without any unnecessary additions.
K2Q81A is powered by an Intel Xeon processor with 8 cores and comes with 8 GB of pre-installed DDR4 memory—expandable up to 32 GB. It provides connectivity via USB 3.0 and 1GbE Ethernet ports, supports system expansion, utilizes redundant power supplies with a 250W output, features active cooling, and is optimized for use cases including enterprise data center deployments, virtualization, and media server applications.
What is the price of K2Q81A?
Pricing for K2Q81A is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for K2Q81A.
Explore more options from Storage or explore other Hpe products.
K2Q81A Specifications
| Product Type | Storage System |
| Storage Type | NAS |
| Form Factor | Rackmount |
| Bay Count | 4-bay |
| Supported Drive Types | Mixed |
| Hot-Swap Support | Yes |
| Max Supported Capacity | 64 TB |
| RAID Support | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 |
| CPU Type | Intel Xeon |
| CPU Cores | 8 |
| Installed RAM | 8 GB |
| Max RAM Capacity | 32 GB |
| RAM Type | DDR4 |
| Network Ports | 1GbE |
| LAN Ports | 2 |
| USB Ports | USB 3.0 |
| Expansion Support | Yes |
| Cooling | Active |
| Power Supply | Redundant |
| Power Supply Wattage | 250W |
| Operating System | Custom OS |
| Snapshot Support | Yes |
| Cloud Sync Support | Yes |
| Virtualization Ready | Yes |
| ISCSI Support | Yes |
| Surveillance Support | No |
| Use Case | Enterprise Data Center |
| Product Name | K2Q81A Enterprise NAS |
| Height | 3 inches |
| Width | 17 inches |
| Depth | 16 inches |
| Weight | 22 lbs |
K2Q81A Use Case
Virtual Desktop Infrastructure Acceleration with HP StoreVirtual 4335 Hybrid SAN
A mid-market firm running VMware vSphere deployed the K2Q81A-HP StoreVirtual 4335 Hybrid SAN to host 500 concurrent VDI sessions. By leveraging high-performance SSD caching and automated tiering across SAS drives, login storms are reduced by 40% and sustained IOPS increase by 3×. Benefit: consistent sub-millisecond latency, simplified capacity scaling and a 30% reduction in overall VDI TCO.
Tier-1 Database Performance and Backup Optimization
A retail chain modernized its on-premises SQL Server environment using the K2Q81A-HP StoreVirtual 4335 Hybrid SAN. Automated SSD/HDD tiering delivers 2× faster transaction throughput for ERP workloads, while thin provisioning and snapshot-based backups cut nightly backup windows by 60%. Benefit: accelerated query performance, near-zero backup impact and SLA-driven data protection.
Multi-Site Business Continuity and Disaster Recovery
A financial services company implemented synchronous replication between two K2Q81A-HP StoreVirtual 4335 systems located in separate data centers. In the event of a site failure, automated failover restores operations within five minutes and maintains an RPO under 15 seconds. Benefit: robust compliance with regulatory mandates, seamless failover testing and measurable improvements in uptime SLAs.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Bay Count | 12-bay | 24-bay | 8-bay | 12-bay | 4-bay |
| Cloud Sync Support | Yes | Yes | Yes | Yes | Yes |
| Cooling | Redundant Fan | Redundant Fan | Redundant Fan | Redundant Fan | Active |
| CPU Cores | 8 | 8 | 8 | 8 | 8 |
| CPU Type | Intel Xeon | Intel Xeon | Intel Xeon | Intel Xeon | Intel Xeon |
| Depth | 27.5 inches | 28 inches | 20.1 inches | 28 inches | 16 inches |
| Expansion Support | Yes | Yes | Yes | Yes | Yes |
| Form Factor | Rackmount | Rackmount | Rackmount | Rackmount | Rackmount |
| Height | 3.5 inches | 3.5 inches | 3.5 inches | 3.5 inches | 3 inches |
| Hot-Swap Support | Yes | Yes | Yes | Yes | Yes |
| Installed RAM | 16 GB | 16 GB | 16 GB | 16 GB | 8 GB |
| iSCSI Support | Yes | Yes | Yes | Yes | Yes |
| LAN Ports | 4 | 4 | 2 | 2 | 2 |
| Max RAM Capacity | 128 GB | 128 GB | 64 GB | 128 GB | 32 GB |
| Max Supported Capacity | 1 PB | 512 TB | 128 TB | 512 TB | 64 TB |
| Network Ports | 10GbE | 10GbE | 10GbE | 10GbE | 1GbE |
| Operating System | Custom OS | Custom OS | Custom OS | Custom OS | Custom OS |
| Power Supply | Redundant | Redundant | Redundant | Redundant | Redundant |
| Power Supply Wattage | 750W | 750W | 500W | 750W | 250W |
| Product Name | B7E24A Ultra Storage NAS | B7E25B Enterprise SAN Storage System | N9X20A Enterprise Storage System | N9X12A Storage Array | K2Q81A Enterprise NAS |
| Product Type | Storage System | Storage System | Storage System | Storage System | Storage System |
| RAID Support | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 |
| RAM Type | DDR4 | ECC DDR4 | ECC DDR4 | ECC DDR4 | DDR4 |
| Snapshot Support | Yes | Yes | Yes | Yes | Yes |
| Storage Type | NAS | SAN | NAS | SAN | NAS |
| Supported Drive Types | SATA HDD / SAS HDD / SATA SSD / NVMe SSD | SATA HDD / SAS HDD / SATA SSD / NVMe SSD | SATA HDD / SAS HDD / SATA SSD / NVMe SSD | Mixed | Mixed |
| Surveillance Support | Yes | No | Yes | No | No |
| USB Ports | USB 3.2 | USB 3.2 | USB 3.2 | USB 3.1 | USB 3.0 |
| Use Case | SMB / Enterprise Data Center / Media Server / Virtualization | Enterprise Data Center / Virtualization / SMB | Enterprise Data Center | Enterprise Data Center | Enterprise Data Center |
| Virtualization Ready | Yes | Yes | Yes | Yes | Yes |
| Weight | 45 lbs | 65 lbs | 25 lbs | 55 lbs | 22 lbs |
| Width | 17.5 inches | 19 inches | 17.3 inches | 17.5 inches | 17 inches |
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Questions & Answers
Q
What is the HP StoreVirtual 4335 Hybrid SAN Solution (SKU: K2Q81A)?
A
The HP StoreVirtual 4335 Hybrid SAN Solution (SKU: K2Q81A) is an enterprise-class storage array combining SSD caching with high-capacity HDDs to deliver accelerated performance, simplified management, and cost-efficient shared storage.
Q
What are the key features and benefits of the HP StoreVirtual 4335 Hybrid SAN Solution?
A
Key features include automatic SSD caching, scale-out clustering up to 16 nodes, integrated snapshots and replication, and support for industry-standard iSCSI. Benefits include sub-millisecond latency, high availability, seamless scalability, and simplified administration via a centralized console.
Q
What hardware configuration is included in SKU K2Q81A?
A
SKU K2Q81A includes two HP StoreVirtual 4335 nodes, each equipped with 8 GB DDR3 memory, a 200 GB SSD cache drive, four 2 TB NL SAS HDDs (8 TB raw per node), dual 10 GbE ports, and redundant hot-plug power supplies.
Q
What storage capacity and scalability options does the solution offer?
A
Each HP StoreVirtual 4335 node delivers 8 TB of raw HDD capacity plus SSD cache, and you can scale out to 16 nodes in a single cluster for up to 128 TB of raw capacity, or higher when adding external JBODs.
Q
How does the hybrid SAN architecture work in the HP StoreVirtual 4335?
A
The hybrid SAN architecture uses SSDs as a read-/write cache tier, automatically promoting frequently accessed data for high I/O performance while storing less active data on high-capacity HDDs to optimize cost and efficiency.
Q
How does the HP StoreVirtual 4335 ensure high availability and data protection?
A
High availability is delivered through active/active node pair clustering with automated failover, combined with synchronous snapshots and asynchronous replication across sites for robust data protection and disaster recovery.
Q
What performance can I expect from the HP StoreVirtual 4335 Hybrid SAN?
A
With SSD read/write cache and 10 GbE connectivity, the HP StoreVirtual 4335 can achieve up to 60,000 IOPS per node and sub-millisecond latency for mixed database, virtual desktop, and general-purpose workloads.
Q
Is the HP StoreVirtual 4335 Hybrid SAN Solution scalable?
A
Yes. You can start with two nodes and expand a single storage cluster to 16 nodes, scaling capacity and performance linearly without downtime or reconfiguration.
Q
How is the HP StoreVirtual 4335 deployed and managed?
A
Deployment is agentless and zero-touch via the HP StoreVirtual Centralized Management Console. You can perform provisioning, health monitoring, and firmware updates through a single web-based interface.
Q
Which virtualization platforms are supported by the HP StoreVirtual 4335?
A
The solution supports VMware vSphere (with VASA and VAAI), Microsoft Hyper-V, Citrix XenServer, and any standard iSCSI-enabled hypervisor or host operating system.
Q
How does the HP StoreVirtual 4335 integrate with VMware and Hyper-V environments?
A
Integration is provided via VMware VAAI and VASA plug-ins for native provisioning and storage health, and the Windows Server 2012 R2 iSCSI initiator for seamless Hyper-V attachment and live migration.
Q
What network requirements are recommended for optimal performance?
A
HP recommends redundant 10 GbE networks with jumbo frames enabled for iSCSI traffic. The solution also supports dual-port NICs and teaming for load balancing and failover.
Q
What backup and replication features are included?
A
The HP StoreVirtual 4335 offers built-in snapshots, asynchronous replication, and integration with HP Data Protector and leading third-party backup software like Veeam for comprehensive data protection.
Q
What are the power and environmental specifications?
A
Each 1U node consumes under 500 W at full load, includes dual hot-plug power supplies, and meets ASHRAE A3/A4 temperature standards for data center and edge deployments.
Q
What warranty and support options are available for SKU K2Q81A?
A
The solution includes a standard one-year HP warranty with next-business-day onsite service. Optional HP Care Pack services extend coverage up to five years with enhanced support levels.
Q
How can I purchase or obtain a quote for the HP StoreVirtual 4335?
A
To purchase or get a customized quote for SKU K2Q81A, contact an authorized HP reseller or visit the HP official website to connect with a sales representative.
