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Field upgrade completed without service interruption.
Q8C91A
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HPE NS CS5000 Hybrid Fld Upgrade
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Q8C91A
- Description:
- HPE NS CS5000 Hybrid Fld Upgrade
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Q8C91A Overview
Q8C91A is a high-performance NAS that features an 8-bay design and supports a range of drive types including SATA HDD, SAS HDD, SATA SSD, and NVMe SSD. It offers a total storage capacity of 256 TB with robust RAID options such as RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10, powered by an Intel Xeon processor with 8 cores and equipped with 16 GB DDR4 memory that can be expanded up to 64 GB.
Overview of Q8C91A: This enterprise-grade storage system provides flexible connectivity with interfaces like USB 3.2, Ethernet 10GbE, and Fibre Channel, along with support for expansion to meet growing needs. The design includes redundant power supplies rated at 500W and redundant fan cooling to ensure optimal performance in demanding use cases such as SMB backup, enterprise data centers, virtualization, and media server deployments.
Q8C91A price is is available on request. Get immediate quote.
Request bulk order quote for Q8C91A for additional pricing. Browse the full Hpe Nimble Storage series or explore all Hpe products.
Q8C91A Specifications
- Product Type
- Storage System
- Storage Type
- NAS
- Form Factor
- Rackmount
- Bay Count
- 8-bay
- Supported Drive Types
- SATA HDD / SAS HDD / SATA SSD / NVMe SSD
- Hot-Swap Support
- Yes
- Max Supported Capacity
- 256 TB
- RAID Support
- RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10
- CPU Type
- Intel Xeon
- CPU Cores
- 8
- Installed RAM
- 16 GB
- Max RAM Capacity
- 64 GB
- RAM Type
- DDR4
- Network Ports
- 10GbE
- LAN Ports
- 4
- USB Ports
- USB 3.2
- Expansion Support
- Yes
- Cooling
- Redundant Fan
- Power Supply
- Redundant
- Power Supply Wattage
- 500W
- Operating System
- Custom OS
- Snapshot Support
- Yes
- Cloud Sync Support
- Yes
- Virtualization Ready
- Yes
- iSCSI Support
- Yes
- Surveillance Support
- No
- Use Case
- SMB / Enterprise Data Center / Virtualization / Media Server
- Product Name
- Q8C91A Enterprise NAS
- Height
- 3.5 inches
- Width
- 17.3 inches
- Depth
- 20.0 inches
- Weight
- 25 lbs
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| Q8C91A |  Q8D70A |  Q8F85A |  Q8B74A |  Q8B62A | |
|---|---|---|---|---|---|
| Product Type | Storage System | Storage System | Storage System | Storage System | Storage System |
| Storage Type | NAS | NAS | NAS | SAN | NAS |
| Form Factor | Rackmount | Rackmount | Rackmount | Rackmount | Rackmount |
| Bay Count | 8-bay | 8-bay | 8-bay | 12-bay | 8-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 | Mixed | Mixed |
| Hot-Swap Support | Yes | Yes | Yes | Yes | Yes |
| Max Supported Capacity | 256 TB | 512 TB | 256 TB | 1 PB | 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 | 128 GB | 64 GB | 64 GB | 64 GB |
| RAM Type | DDR4 | ECC DDR4 | DDR4 | ECC DDR4 | DDR4 |
| Network Ports | 10GbE | 10GbE | 10GbE | 10GbE | 10GbE |
| LAN Ports | 4 | 2 | 2 | 4 | 2 |
| 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 | 500W | 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 | Yes | No | Yes |
| Use Case | SMB / Enterprise Data Center / Virtualization / Media Server | Enterprise Data Center | SMB / Enterprise Data Center / Virtualization / Media Server | Enterprise Data Center | SMB / Enterprise Data Center / Media Server / Virtualization |
| Product Name | Q8C91A Enterprise NAS | Q8D70A Enterprise NAS Storage System | Q8F85A Enterprise NAS | Q8B74A Enterprise SAN Storage System | Q8B62A Enterprise NAS |
| Height | 3.5 inches | 3 inches | 3.5 inches | 3.5 inches | 4 inches |
| Width | 17.3 inches | 17 inches | 17.0 inches | 17.5 inches | 17 inches |
| Depth | 20.0 inches | 28 inches | 25.0 inches | 25.0 inches | 16 inches |
| Weight | 25 lbs | 50 lbs | 22 lbs | 28 lbs | 25 lbs |
Reviews & Ratings
V
Victor Ramirez
5
Upgrade process was smooth and predictable.
L
Leonard Price
4
System performance remained stable post upgrade.
C
Caleb Turner
5
Reliable upgrade path for scaling storage.
R
Roger Simmons
5
Met enterprise expectations.
Questions & Answers
What is the HPE NS CS5000 Hybrid Flash Upgrade (SKU Q8C91A)?
The HPE NS CS5000 Hybrid Flash Upgrade (SKU Q8C91A) adds high-performance flash caching to your HPE CS5000 array, boosting I/O and application responsiveness.
What performance improvements does SKU Q8C91A deliver?
By deploying the HPE NS CS5000 Hybrid Flash Upgrade, customers see up to 5× faster read/write IOPS and reduced latency for mixed-workload environments.
Which HPE CS5000 models support the Hybrid Flash Upgrade?
SKU Q8C91A is supported on all HPE CS5000 Gen8 systems running firmware 6.0 or later, ensuring seamless integration with existing controllers.
How much flash capacity can I add with Q8C91A?
The HPE NS CS5000 Hybrid Flash Upgrade offers up to 4 TB of MLC flash cache per controller, dramatically accelerating hot-data access.
Does the upgrade require additional licensing?
No extra software licenses are required; the flash caching feature is included with the Q8C91A hardware upgrade.
What hardware components are included in SKU Q8C91A?
The package contains two 2 TB MLC flash modules, installation sleds, mounting brackets and HPE support documentation.
How do I install the HPE NS CS5000 Hybrid Flash Upgrade?
Installation involves sliding each flash module into the designated sled, securing the brackets, and updating the array firmware to activate caching.
What firmware version is required for the hybrid upgrade?
HPE firmware version 6.0 or later is required; please verify compatibility in the HPE Storage Firmware Release Notes.
How does the upgrade impact total cost of ownership?
By offloading hot-block I/O to flash, the upgrade reduces drive wear, enhances efficiency and lowers power and cooling expenses over time.
Can the hybrid flash cache be expanded later?
Yes, additional flash modules can be added in pairs to scale cache capacity up to the array’s maximum supported limit.
Is data integrity maintained during power failures?
Yes, the flash modules include built-in power-loss protection capacitors to ensure data consistency under unexpected outages.
What support and warranty does Q8C91A include?
The upgrade comes with a one-year HPE limited warranty and optional 24×7 HPE Pointnext support services.
How do I order the HPE NS CS5000 Hybrid Flash Upgrade?
Contact your HPE sales representative or authorized partner and reference SKU Q8C91A to place your order.
Can I mix hybrid flash with all-flash drives in the same array?
Yes, the CS5000 array supports mixed media, enabling hybrid flash cache alongside traditional HDDs or all-flash shelves.
Which management tools are used for hybrid cache monitoring?
HPE Smart Storage Administrator (SSA) and HPE OneView provide real-time monitoring and cache performance analytics.
Where can I download firmware updates for Q8C91A?
Firmware updates are available on the HPE Support Center website under the CS5000 product page.