HPE Q1J03B – MSA 2050 SAN Small Form Factor Storage Array
Key Features
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Dual active-active hardware controllers deliver high-availability processing failover safety
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Twenty-four SFF bays enable high-density enterprise SAS HDD or flash SSD expansion
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Multi-protocol host ports support both Fibre Channel and iSCSI storage environments
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Integrated 12Gb/s SAS internal backplane interface optimizes data path data delivery
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HPE Q1J03B – MSA 2050 SAN Small Form Factor Storage Array
Overview
The HPE Q1J03B is a 2U rackmount dual-controller SAN storage array chassis designed to deliver high-performance block storage acceleration for small-to-medium enterprise data centers and virtualized environments. This Small Form Factor system features 24 hot-swappable 2.5-inch drive bays engineered to accommodate high-density enterprise SAS hard drives or solid-state drives. It addresses operational bottlenecks and performance constraints by providing a high-speed hardware platform capable of delivering over 200,000 IOPS for transactional applications. The appliance integrates seamlessly into standard network racks, offering flexible, cost-effective shared storage services across demanding compute clusters.
The processing infrastructure relies on dual hot-swappable hardware controllers running in an active-active configuration to ensure consistent data paths and eliminate single points of failure. Each storage controller comes equipped with an internal cache memory layout alongside multi-protocol host ports that support 8Gb/16Gb Fibre Channel or 1Gb/10Gb iSCSI connectivity options using appropriate SFP modules. Data traffic between the controllers and individual drive interfaces traverses a high-speed 12Gb/s SAS-3 internal backplane to maximize bandwidth utilization and throughput. This flexible electronic setup guarantees low-latency response times and investment protection for evolving IP or SAN storage area networks.
Data volume management and array protection are automated natively at the controller microcode layer through advanced storage virtualization features. The platform handles hardware-level tiering, thin provisioning, and automated wide-striping across the populated storage tiers without demanding manual tuning or configuration overhead from system administrators. Built-in snapshot capabilities provide near-instantaneous point-in-time recovery points to protect mission-critical application volumes from accidental deletion or data corruption. This specialized architectural approach maximizes resource utilization while ensuring complete data integrity across high-speed logical volumes.
Physical maintenance, hardware expansions, and component swaps are executed via toolless modular sections easily accessible from the front or rear workspace rows. The 24-bay SFF enclosure allows IT personnel to mix and match solid-state flash drives with traditional enterprise SAS disks to build optimized hybrid tiers without interrupting active client operations. Continuous cooling performance and structural power distribution are maintained by dual hot-plug AC power supplies containing integrated cooling fan assemblies. Storage teams can configure volumes, assign host mappings, and monitor chassis telemetry through a web-based management interface.
Typical Deployment Scenarios
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Centralized shared storage array supplying high-performance datastores for multi-host VMware vSphere or Microsoft Hyper-V virtualization infrastructure.
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High-IOPS transactional storage repository hosting localized relational databases or enterprise resource planning applications.
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Distributed branch office storage hub leveraging flash-optimized tiers and remote snapshot replication to achieve robust disaster recovery readiness.
Specifications
| Technical Parameter | Specification Detail |
| Brand | HPE |
| Part Number | Q1J03B |
| Product Type | Hard Drive Array |
| Storage Enclosure Form Factor | 2U Rack-mountable |
| Total Base Raw Capacity | Depends on Installed Drive Densities |
| Supported Disk Interfacing | SAS 12Gb/s (SAS-3 Sub-layer) |
| Total Drive Bay Capacity | 24 x 2.5-inch Small Form Factor Bays |
| Storage Controller Architecture | Dual Active-Active Hot-Swappable Controllers |
| Host Protocol Interfacing Ports | 8 x Ports Total (4 Per Controller, FC or iSCSI) |
| Onboard System Cache Buffers | 8 GB Cache Memory per Controller |
| Supported Drive Technologies | SFF NVMe-Ready SAS SSDs, Enterprise SAS HDDs |
| Core Data Protection Methods | Virtualized RAID 1, RAID 5, RAID 6, RAID 10 |
| Core Power Supply Architecture | 2 x Redundant Hot-Swappable AC Modules |
| System Thermal Management | Integrated Dual Fans per Power Subassembly |
| Physical Hardware Depth | 19.50 inches |
| Physical Hardware Width | 17.60 inches |
| Physical Hardware Height | 3.50 inches |
| Total Hardware Weight | 38.70 lbs |
Compatibility / Ecosystem
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Storage Component Upgrades: HPE MSA 2050 series 2.5-inch SFF enterprise SAS solid-state drives, 15K/10K RPM hard drives, and 7.2K Midline SAS drives.
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External Disk Expansion: HPE MSA 2050 SFF Drive Enclosure or LFF Drive Enclosure via dedicated rear mini-SAS HD expansion ports.
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Host Operating Infrastructures: Microsoft Windows Server 2016, Windows Server 2019, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware vSphere.
Additional information
| Weight | 18.4 kg |
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| Dimensions | 44.7 × 49.5 × 8.9 cm |








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