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Drive enclosure delivered reliable IO performance.
AP843B
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HP P2000 Dual I/O LFF Drive Enclosure
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AP843B
- Description:
- HP P2000 Dual I/O LFF Drive Enclosure
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AP843B Overview
AP843B is a robust SAN storage solution featuring 8 drive bays that support mixed drive types including SATA HDDs, SAS HDDs, SATA SSDs, and NVMe SSDs, delivering a total storage capacity of up to 512 TB with RAID configurations such as RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10. Built with an Intel Xeon processor paired with 16 GB of pre-installed ECC DDR4 memory (expandable up to 64 GB), this system is engineered for speed and reliability.
Offering versatile connectivity with USB 3.0 ports and 10GbE network support, AP843B ensures seamless integration into modern data infrastructures while supporting expansion options for future growth. Its redundant power supply with a wattage of 350W and active cooling design make it ideal for demanding use cases including SMB backup, enterprise data centers, virtualization, and media server applications.
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AP843B Specifications
- Width
- 17.3 inches
- Depth
- 15.7 inches
- Weight
- 25 lbs
- Height
- 3.5 inches
- Form Factor
- Rackmount
- RAM Type
- ECC DDR4
- Hot-Swap Support
- Yes
- Power Supply
- Redundant
- Cooling
- Active
- Virtualization Ready
- Yes
- LAN Ports
- 4
- RAID Support
- RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10
- Max RAM Capacity
- 64 GB
- Power Supply Wattage
- 350W
- Product Type
- Storage System
- Storage Type
- SAN
- Supported Drive Types
- Mixed
- CPU Type
- Intel Xeon
- CPU Cores
- 8
- Installed RAM
- 16 GB
- Network Ports
- 10GbE
- Expansion Support
- Yes
- Operating System
- Custom OS
- Snapshot Support
- Yes
- Cloud Sync Support
- Yes
- iSCSI Support
- Yes
- Surveillance Support
- No
- Bay Count
- 8-bay
- Max Supported Capacity
- 512 TB
- USB Ports
- USB 3.0
- Use Case
- SMB / Enterprise Data Center / Media Server / Virtualization
- Product Name
- AP843B Enterprise SAN Storage System
AP843B Use Case
Accelerating Virtual Server Performance in SMB Data Centers
In a mid-sized enterprise running VMware ESXi clusters, the AP843B-HP P2000 Dual I/O LFF Drive Enclosure connects via dual‐port SAS to expand capacity by up to 48 TB of high-density HDDs. Outcome: delivers over 10,000 IOPS for virtual machines, cuts VM boot-storm latency by 50 %, and enables non-disruptive scale-out growth with enterprise-class redundancy.
Enterprise Backup and Disaster Recovery for Distributed Branch Offices
A retail chain deploys the AP843B-HP unit at each branch to perform local nightly backups of POS and ERP databases over dual-channel SAS. It replicates snapshots to the central data center using host-based replication. Outcome: ensures sub-2-hour RTO, improves data resilience, and reduces WAN backup traffic by 70 % while maintaining end-to-end encryption.
High-Capacity Tiered Storage for Big Data Analytics
A manufacturing analytics team integrates the AP843B-HP P2000 Dual I/O LFF Drive Enclosure as a secondary storage tier, populating it with 4 TB HDDs for IoT sensor datasets and leveraging SSD caching on the front-end array. Outcome: sustains 500 MB/s throughput for batch processing, reduces analytic job completion times by 30 %, and optimizes TCO with hot-swap drive scalability.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| AP843B |  M0S85A |  K2R11A |  E7W32A |  K2R20A | |
|---|---|---|---|---|---|
| Product Type | Storage System | Storage System | Storage System | Storage System | Storage System |
| Storage Type | SAN | SAN | NAS | SAN | NAS |
| Form Factor | Rackmount | Rackmount | Rackmount | Rackmount | Rackmount |
| Bay Count | 8-bay | 24-bay | 12-bay | 24-bay | 8-bay |
| Supported Drive Types | Mixed | Mixed | Mixed | Mixed | Mixed |
| Hot-Swap Support | Yes | Yes | Yes | Yes | Yes |
| Max Supported Capacity | 512 TB | 512 TB | 256 TB | 512 TB | 256 TB |
| 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 |
| CPU Type | Intel Xeon | Intel Xeon | Intel Xeon | Intel Xeon | Intel Xeon |
| CPU Cores | 8 | 8 | 8 | 8 | 8 |
| Installed RAM | 16 GB | 16 GB | 16 GB | 16 GB | 16 GB |
| Max RAM Capacity | 64 GB | 64 GB | 32 GB | 64 GB | 64 GB |
| RAM Type | ECC DDR4 | ECC DDR4 | DDR4 | DDR4 | DDR4 |
| Network Ports | 10GbE | 10GbE | 10GbE | 10GbE | 10GbE |
| LAN Ports | 4 | 2 | 4 | 2 | 2 |
| USB Ports | USB 3.0 | USB 3.0 | USB 3.2 | USB 3.2 | USB 3.2 |
| Expansion Support | Yes | Yes | Yes | Yes | Yes |
| Cooling | Active | Redundant Fan | Redundant Fan | Active | Active |
| Power Supply | Redundant | Redundant | Redundant | Redundant | Redundant |
| Power Supply Wattage | 350W | 750W | 350W | 500W | 350W |
| Operating System | Custom OS | Custom OS | Custom OS | Custom OS | Custom OS |
| Snapshot Support | Yes | Yes | Yes | Yes | Yes |
| Cloud Sync Support | Yes | Yes | Yes | Yes | Yes |
| Virtualization Ready | Yes | Yes | Yes | Yes | Yes |
| iSCSI Support | Yes | Yes | Yes | Yes | Yes |
| Surveillance Support | No | No | No | No | No |
| Use Case | SMB / Enterprise Data Center / Media Server / Virtualization | Enterprise Data Center | Enterprise Data Center | Enterprise Data Center | Enterprise Data Center |
| Product Name | AP843B Enterprise SAN Storage System | M0S85A Enterprise Storage Array | K2R11A Enterprise NAS | E7W32A SAN Storage System | K2R20A Enterprise NAS System |
| Height | 3.5 inches | 4 inches | 3 inches | 3.5 inches | 3.5 inches |
| Width | 17.3 inches | 17 inches | 17 inches | 17.5 inches | 17.3 inches |
| Depth | 15.7 inches | 28 inches | 28 inches | 28 inches | 15.7 inches |
| Weight | 25 lbs | 50 lbs | 35 lbs | 65 lbs | 25 lbs |
Reviews & Ratings
R
Ryan Edwards
5
Easy integration into storage environment.
M
Marcus Hill
4
Stable enclosure under load.
J
Julian Brooks
4
Good enterprise enclosure.
T
Theo Lawson
4
Worked as expected.
Questions & Answers
What is the HP P2000 Dual I/O LFF Drive Enclosure (SKU: AP843B)?
The HP P2000 Dual I/O LFF Drive Enclosure (SKU: AP843B) is a 2U, 12-bay expansion unit designed to extend HP P2000 G3 storage arrays with large form factor (LFF) drives, offering dual redundant 6Gb/s SAS host I/O ports.
How many drives does AP843B support?
The AP843B enclosure supports up to twelve 3.5-inch LFF SAS or SATA drives in a single 2U chassis.
Which drive types are compatible with the P2000 Dual I/O enclosure?
The P2000 Dual I/O enclosure supports 3.5-inch SAS and SATA LFF drives, including HP-certified 1TB, 2TB, and 3TB models, rated for enterprise workloads.
What is the maximum storage capacity of the AP843B?
With twelve 3TB LFF drives, the AP843B delivers up to 36TB of raw capacity; third-party 4TB drives can expand total raw capacity to 48TB.
What host connectivity options are available on the P2000 Dual I/O?
The P2000 Dual I/O enclosure features dual redundant 6Gb/s SAS host I/O ports per controller and supports optional 8Gb Fibre Channel connectivity via FC20 modules.
Which RAID levels does the HP P2000 Dual I/O enclosure support?
When attached to P2000 G3 controllers, the AP843B supports RAID 0, 1, 5, 6, 10, 50, and 60, plus HBA mode for direct disk access.
Is the AP843B enclosure hot-swappable?
Yes, the AP843B supports hot-swapping of all drive modules and dual power supplies, ensuring non-disruptive maintenance.
What are the power requirements for the P2000 Dual I/O enclosure?
The AP843B ships with dual hot-plug 460W power supplies, accepts 100–240VAC at 50–60Hz, and supports N+1 redundancy.
What are the physical dimensions and weight of the AP843B?
The enclosure measures 8.73cm (2U) H x 44.47cm W x 58.58cm D and weighs approximately 22.7kg fully populated.
Which management tools are used for the HP P2000 Dual I/O enclosure?
Administrators manage the AP843B via HP P2000 Command View software or HP OneView, offering intuitive GUI and CLI control.
What warranty and support options are available for the AP843B?
The AP843B includes a one-year limited hardware warranty, with optional HP Care Pack extensions for up to five years of on-site coverage.
Can I use the AP843B with older HP MSA2000 G2 arrays?
No, the AP843B enclosure is only compatible with HP P2000 G3 controllers and requires firmware level P2000 G3 or later.
What performance throughput can I expect from the P2000 Dual I/O enclosure?
With dual 6Gb/s SAS ports per controller, individual I/O modules can deliver up to 800MB/s sequential throughput, subject to drive performance.
In what environments is the HP P2000 Dual I/O enclosure best suited?
The AP843B is ideal for SMB, remote or branch offices, virtualization, and backup applications requiring high-capacity, redundant storage.
How do I install and rack-mount the AP843B enclosure?
Mount the AP843B in a standard 19-inch rack using supplied rails, connect SAS cables to P2000 controllers, power on, and configure in Command View.
What is the difference between dual I/O and single I/O enclosures?
Dual I/O enclosures like the AP843B have redundant SAS host ports and controllers for high availability, whereas single I/O units offer one host path without redundancy.