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15K SAS HDD offers reliable performance for legacy needs.
Q6L99A
HPE 300GB SAS 12G 15K SFF RW DS HDD
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Q6L99A
- Description:
- HPE 300GB SAS 12G 15K SFF RW DS HDD
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Q6L99A Overview
Q6L99A is a high-performance HDD engineered for enterprise storage applications, featuring a 3.5-inch form factor with a SAS 12Gb/s interface, a robust 12 TB storage capacity, and a 7200 RPM spindle speed designed for 24/7 operation. It offers a 512 MB cache, is rated for a heavy annual workload of 550 TB/yr, and is optimized with advanced features such as helium-sealed construction, vibration protection, and dual actuator technology, ensuring reliable performance in data centers and demanding server environments.
Q6L99A delivers efficiency and durability for critical use cases ranging from enterprise storage to surveillance and NAS applications. With low power consumption (8 Watts read/write and 4 Watts idle), high reliability, and dimensions tailored for multi-bay systems (1.0 inches in height, 5.8 inches in width, 4.0 inches in depth, and 1.8 lbs in weight), this drive is ideally suited for integration into high-density storage systems and professional desktop setups.
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Q6L99A Specifications
- Product Type
- Hard Drive
- Drive Type
- HDD
- Use Case
- Enterprise Storage
- Interface
- SAS 12Gb/s
- Form Factor
- 3.5-inch
- Storage Capacity
- 12 TB
- Spindle Speed (RPM)
- 7200 RPM
- Cache (Buffer Size)
- 512 MB
- Average Latency
- N/A
- Data Transfer Rate
- Up to 300 MB/s
- Annual Workload Rating
- 550 TB/yr
- Power Consumption (Read/Write)
- 8 Watts
- Power Consumption (Idle)
- 4 Watts
- Encryption Support
- AES 256-bit
- Helium Sealed
- Helium-Sealed
- Drive Bays Supported
- Multi-bay
- Vibration Protection
- Yes
- Advanced Features
- Dual Actuator
- Operating Temperature
- 5–60°C
- Product Name
- Q6L99A Enterprise HDD
- Height
- 1.0 inches
- Width
- 5.8 inches
- Depth
- 4.0 inches
- Weight
- 1.8 lbs
Q6L99A Use Case
High-Performance Virtualization Storage for Enterprise Data Centers
Scenario: Deploy the Q6L99A-HPE 300GB SAS 12G 15K SFF RW DS HDD in HPE ProLiant servers to power VMware ESXi clusters and accelerate virtual machine I/O. Outcome: Delivers 250K IOPS and sub-millisecond latency, reducing VM boot times by 30%, eliminating storage bottlenecks and boosting consolidation ratios with enterprise-grade reliability.
Accelerating Online Transaction Processing in Financial Services
Scenario: Integrate the Q6L99A-HPE 300GB SAS 12G 15K SFF RW DS HDD into high-availability Oracle and SQL Server arrays at a global trading firm to handle peak trade volumes. Outcome: Leverages 12G SAS bandwidth and 15K RPM throughput to sustain sub-millisecond query response times, maintain SLA compliance and support rapid transactional growth.
High-Speed Scratch and Cache Storage for HPC Clusters
Scenario: Use the Q6L99A-HPE 300GB SAS 12G 15K SFF RW DS HDD as dedicated scratch and cache drives in a high-performance computing environment for scientific simulations. Outcome: Provides robust random I/O performance and reliability, cutting data-intensive computation times by up to 25% and enhancing overall cluster efficiency.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 Q6L99A |  P13660-B21 |  Q6M07A |  P04521-B21 |  P06588-B21 | |
|---|---|---|---|---|---|
| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Use Case | Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SAS 12Gb/s | SAS 12Gb/s | SATA III | SATA III | SATA III |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 12 TB | 10 TB | 10 TB | 10 TB | 8 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 512 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Data Transfer Rate | Up to 300 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr | 300 TB/yr |
| Power Consumption (Read/Write) | 8 Watts | N/A | 8 Watts | 8.5 Watts | 8.0 Watts |
| Power Consumption (Idle) | 4 Watts | N/A | 6 Watts | 5.0 Watts | 5.0 Watts |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Advanced Features | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator |
| Operating Temperature | 5–60°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | Q6L99A Enterprise HDD | P13660-B21 Enterprise HDD | Q6M07A Enterprise HDD | P04521-B21 Enterprise HDD | P06588-B21 Enterprise Helium-Sealed HDD |
| Height | 1.0 inches | 1.0 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 5.8 inches | 4.0 inches | 5.79 inches | 5.79 inches | 4.00 inches |
| Depth | 4.0 inches | 5.8 inches | 4.00 inches | 4.01 inches | 5.78 inches |
| Weight | 1.8 lbs | 2.0 lbs | 3.5 lbs | 3.00 lbs | 1.20 lbs |
Reviews & Ratings
M
Muneer Ahmed
4
Runs smoothly in RW environments.
K
Katrin Vogel
5
Consistent speed for a spinning disk.
S
Saif Ullah
5
Good replacement for high-speed SAS HDDs.
E
Edward Finch
5
Predictable enterprise HDD behavior.
Questions & Answers
What is the storage capacity of the HPE 300GB SAS 12G 15K SFF RW DS HDD (SKU Q6L99A)?
The HPE Q6L99A delivers 300 GB of high-performance SAS storage capacity.
Which interface does the HPE Q6L99A drive use?
The Q6L99A utilizes a 12 Gb/s SAS interface for maximum throughput.
What is the form factor of the HPE 300GB SAS 12G 15K SFF HDD?
This drive is a 2.5-inch Small Form Factor (SFF) device.
What rotational speed does the HPE Q6L99A operate at?
The Q6L99A spins at 15,000 RPM to deliver low latency and high I/O performance.
Is the HPE Q6L99A hot-swappable in HPE servers?
Yes. The Q6L99A is fully hot-swappable in compatible HPE ProLiant and Apollo server bays.
What is the mean time between failures (MTBF) for the Q6L99A HDD?
The Q6L99A features a 2 million-hour MTBF rating for enterprise reliability.
Does the HPE 300GB SAS 12G 15K SFF HDD support hardware encryption?
No. The Q6L99A is not an encrypted drive; consider HPE Self-Encrypting Drives for built-in data security.
What is the typical power consumption of the Q6L99A in operation?
Under load, the Q6L99A consumes approximately 9.6 W, and idle power is around 8.8 W.
Which HPE server families are compatible with the Q6L99A HDD?
The drive is compatible with HPE ProLiant Gen9/Gen10, Apollo, and Synergy chassis with SAS backplanes.
Can the HPE 300GB SAS 12G 15K SFF HDD be used in RAID configurations?
Yes. It supports hardware RAID when paired with HPE Smart Array controllers.
What is the average latency of the HPE Q6L99A drive?
With a 15K RPM motor, the average rotational latency is approximately 2 ms.
What operating temperature range does the Q6L99A support?
The drive operates safely between 5 °C and 55 °C ambient temperature.
How do I install the HPE 300GB SAS 12G 15K SFF HDD in an HPE server?
Simply slide the drive into a compatible SFF hot-plug bay until the SAS connector seats and the drive caddy locks.
What performance benefits does a 15K RPM SAS HDD provide?
A 15K RPM SAS HDD delivers up to 175 MB/s sequential transfer rates and sub-3 ms latency for transaction-intensive workloads.
What warranty does HPE offer for the Q6L99A HDD?
HPE provides a standard three-year limited warranty with parts and labor coverage.