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Q8D20A
NS CS235 960GB Cache Fld Upgrade
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Q8D20A is a high-performance SAN storage system designed for demanding enterprise applications. It features 8 drive bays that support SATA HDD, SAS HDD, SATA SSD, and NVMe SSD drive types, delivering a total storage capacity of up to 512 TB. The system offers multiple RAID configurations including RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10 to ensure data redundancy and performance optimization.
Q8D20A is powered by an Intel Xeon processor with 8 cores and comes with 16 GB of pre-installed ECC DDR4 memory upgradeable to 128 GB. It is equipped with high-speed interfaces including USB 3.2 and 10GbE network ports, along with 2 LAN ports for versatile connectivity. The device supports expansion, features redundant cooling with a redundant fan, and provides a redundant 750W power supply. Ideal for enterprise data centers and virtualization use cases, Q8D20A delivers reliable performance and robust scalability.
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A global investment bank integrates the Q8D20A-NS CS235 960GB Cache Field Upgrade into its primary OLTP database cluster to absorb high write bursts and deliver sub-millisecond transaction latency. By offloading hot data to the 960GB enterprise cache SSD, the bank achieves a 3× increase in IOPS during peak trading hours and maintains consistent throughput under heavy load. The upgrade ensures real-time price quoting, faster order matching and improved client satisfaction while reducing backend storage contention by 60%.
A Fortune 500 corporation deploys the Q8D20A-NS CS235 960GB Cache Field Upgrade across its HPE ProLiant servers to accelerate Virtual Desktop Infrastructure (VDI) boot storms and on-demand application launches. The high-density 960GB cache layer delivers sustained 250K IOPS, cutting pooled VM boot time by 50% and reducing login delays for 5,000 concurrent users. This results in higher end-user productivity, increased desktop density per server and a measurable reduction in storage TCO.
A genomics research institute integrates the Q8D20A-NS CS235 960GB Cache Field Upgrade into its Hadoop and Spark clusters to accelerate alignment, variant calling and AI-driven analysis. The low-latency cache tier ingests and serves active datasets with up to 40% faster job completion, enabling researchers to process whole-genome sequences in hours instead of days. This high-impact upgrade optimizes resource utilization, accelerates time-to-insight for precision medicine projects and enhances overall pipeline efficiency.
To get the detailed certification, please go to the Compliance Center.
| 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 | 8-bay | 12-bay | 8-bay | 24-bay | 16-bay |
| 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 | SATA HDD / SAS HDD / SATA SSD / NVMe SSD |
| Hot-Swap Support | Yes | Yes | Yes | Yes | Yes |
| Max Supported Capacity | 512 TB | 1 PB | 256 TB | 1 PB | 512 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 | 128 GB | 128 GB | 64 GB | 128 GB | 64 GB |
| RAM Type | ECC DDR4 | ECC DDR4 | DDR4 | ECC DDR4 | ECC DDR4 |
| Network Ports | 10GbE | 10GbE | 10GbE | 10GbE | 10GbE / Fibre Channel |
| LAN Ports | 2 | 4 | 4 | 4 | 4 |
| USB Ports | USB 3.2 | USB 3.2 | USB 3.2 | USB 3.2 | USB 3.2 |
| Expansion Support | Yes | Yes | Yes | Yes | Yes |
| Cooling | Redundant Fan | Redundant Fan | Redundant Fan | Redundant Fan | Active |
| Power Supply | Redundant | Redundant | Redundant | Redundant | Redundant |
| Power Supply Wattage | 750W | 750W | 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 | No | No | No | No |
| Use Case | Enterprise Data Center / Virtualization | Enterprise Data Center | SMB / Enterprise Data Center / Virtualization / Media Server | Enterprise Data Center | SMB / Enterprise Data Center / Media Server / Virtualization |
| Product Name | Q8D20A Enterprise Storage Array | Q8F72A Enterprise SAN Storage System | Q8C91A Enterprise NAS | Q8D35A Enterprise Storage Array | Q8B64A Enterprise SAN Storage |
| Height | 3.5 inches | 3.5 inches | 3.5 inches | 3.5 inches | 4.5 inches |
| Width | 17 inches | 17.3 inches | 17.3 inches | 17.5 inches | 17.5 inches |
| Depth | 27 inches | 28.0 inches | 20.0 inches | 28.0 inches | 28.0 inches |
| Weight | 45 lbs | 46 lbs | 25 lbs | 45 lbs | 45 lbs |
Cache upgrade delivered predictable gains.
Easy integration with existing system.
Improved read heavy workloads.
No operational issues.
Solid cache enhancement.
The NS CS235 960GB Cache Fld Upgrade (Q8D20A) is a factory-approved flash cache expansion module designed to increase system caching capacity to 960 GB for HPE Nimble Storage CS235 arrays.
The Q8D20A upgrade is compatible with HPE Nimble Storage CS235 and CS235d hybrid flash arrays; verify compatibility in the array’s user guide or HPE QuickSpecs.
By boosting cache capacity to 960 GB, the upgrade accelerates read/write operations, reduces I/O latency, and enhances application responsiveness under demanding workloads.
No, the Q8D20A cache module supports hot-swap installation, allowing you to install the upgrade without powering down or disrupting I/O operations.