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Controller spare allowed fast service restoration.
Q8D28A
NS CS220 Controller/PS/HDD/SSD Spare Kit
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Q8D28A
NS CS220 Controller/PS/HDD/SSD Spare Kit
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Q8D28A is a SAN storage system featuring 24 drive bays that support SATA HDD, SAS HDD, SATA SSD, and NVMe SSD configurations with a total storage capacity of 512 TB. It supports RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10 levels, powered by an Intel Xeon processor paired with 8 GB pre-installed memory, which is expandable up to 32 GB.
The system offers connectivity via USB 3.1, Thunderbolt 3, 10GbE Ethernet, and Fibre Channel interfaces, with 4 LAN ports and optional expansion support. Its design includes a redundant 750W power supply and active cooling to ensure operational stability for use cases such as SMB backup, enterprise data centers, virtualization, and media server applications.
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When a Q8D28A-NS CS220 controller or power supply fails in a mission-critical data center, on-site technicians use the Spare Kit to complete replacement within 30 minutes, reducing unplanned downtime by 90% and ensuring continuous service availability to meet 99.99% SLA requirements.
In a global retail chain’s remote edge locations, pre-deployed Q8D28A-NS CS220 HDD/SSD Spare Kits enable fast swap of failed drives, minimizing logistical delays and maintaining point-of-sale and real-time inventory systems, boosting operational efficiency and customer satisfaction.
During scheduled disaster recovery drills, IT teams leverage the Q8D28A-NS Spare Kit to simulate node failures by swapping controllers, power supplies, and HDDs/SSDs on CS220 servers, validating failover procedures and ensuring zero data loss (RPO) while meeting strict regulatory compliance.
To get the detailed certification, please go to the Compliance Center.
 Q8D28A |  Q8D76A |  Q8F85A |  Q8F69A |  Q8C95A | |
|---|---|---|---|---|---|
| Product Type | Storage System | Storage System | Storage System | Storage System | Storage System |
| Storage Type | SAN | SAN | NAS | SAN | SAN |
| Form Factor | Rackmount | Rackmount | Rackmount | Rackmount | Rackmount |
| Bay Count | 24-bay | 12-bay | 8-bay | 8-bay | 12-bay |
| Supported Drive Types | Mixed | Mixed | SATA HDD / SAS HDD / SATA SSD | Mixed | Mixed |
| Hot-Swap Support | Yes | Yes | Yes | Yes | Yes |
| Max Supported Capacity | 512 TB | 256 TB | 256 TB | 256 TB | 1 PB |
| RAID Support | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 | 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 | 8 GB | 16 GB | 16 GB | 16 GB | 16 GB |
| Max RAM Capacity | 32 GB | 64 GB | 64 GB | 128 GB | 64 GB |
| RAM Type | DDR4 | ECC DDR4 | DDR4 | ECC DDR4 | ECC DDR4 |
| Network Ports | 10GbE | 10GbE | 10GbE | 10GbE | 10GbE |
| LAN Ports | 4 | 2 | 2 | 4 | 2 |
| USB Ports | USB 3.1 | USB 3.0 | USB 3.2 | USB 3.2 | USB 3.2 |
| Expansion Support | Yes | Yes | Yes | Yes | Yes |
| Cooling | Active | Active | Redundant Fan | Redundant Fan | Redundant Fan |
| Power Supply | Redundant | Redundant | Redundant | Redundant | Redundant |
| Power Supply Wattage | 750W | 350W | 500W | 750W | 500W |
| 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 | Yes | Yes | Yes | No |
| Use Case | SMB / Enterprise Data Center / Media Server / Virtualization | SMB / Enterprise Data Center / Virtualization / Media Server | SMB / Enterprise Data Center / Virtualization / Media Server | SMB / Enterprise Data Center / Virtualization / Media Server | Enterprise Data Center |
| Product Name | Q8D28A Enterprise SAN Storage System | Q8D76A Enterprise SAN Storage | Q8F85A Enterprise NAS | Q8F69A Ultra Storage Appliance | Q8C95A |
| Height | 4 inches | 3 inches | 3.5 inches | 3.5 inches | 1.75 inches |
| Width | 17.5 inches | 17 inches | 17.0 inches | 17.3 inches | 17.5 inches |
| Depth | 28 inches | 28 inches | 25.0 inches | 15.0 inches | 20 inches |
| Weight | 50 lbs | 35 lbs | 22 lbs | 27 lbs | 25 lbs |
Controller spare allowed fast service restoration.
Straightforward installation process.
System remained stable after replacement.
Reliable enterprise spare kit.
Met expectations.
The HP Q8D28A NS CS220 Controller/PS/HDD/SSD Spare Kit is an OEM replacement bundle containing the controller module, power supplies, and drive caddies designed for the Nimble Storage CS220 series.
The Q8D28A kit includes one CS220 controller board, two hot-swap power supply units, four 2.5" drive caddies, associated mounting screws, and cable assemblies.
Yes, the Q8D28A kit is fully compatible with all Nimble Storage CS220 Gen1 and Gen2 arrays running supported firmware.
Power down the CS220, remove the faulty module or PS, insert the replacement component from the Q8D28A kit, secure it with screws, reconnect cables, and power the array back on.