When you buy a RAID card for your HPE servers separately, it is crucial to pay close attention to several key factors to ensure compatibility, optimal performance, and robust data protection. A RAID controller is an enterprise-grade component essential for managing data, improving storage efficiency, and ensuring fault tolerance in your server setup. These controllers provide enterprise-class storage performance, reliability, security, and efficiency to address evolving data storage needs.
What is a RAID card?
A RAID (Redundant Array of Independent Disks) card, also known as a storage controller, is a hardware component that manages multiple hard drives or solid-state drives (SSDs) so they function as a single logical unit. This allows for improved performance, data redundancy, or both. HPE Smart Array RAID Controllers are designed for enterprise-grade data protection, enabling servers to connect multiple drives per port and use more than eight internal drives in a RAID array efficiently.
Why RAID matters for HPE servers
For HPE servers, RAID controllers are critical for ensuring reliable and scalable storage, protecting critical data, and optimizing storage performance. They are engineered for high-performance and reliability, offering flexibility to meet the demands of virtualized environments, databases, and mission-critical applications.
Key factors when buying RAID cards for HPE
Compatibility Checks
- Server Model and Generation: Ensure the RAID card is compatible with your specific ProLiant generation and model (Gen8, Gen9, Gen10). For example, DL380p G8 may require additional controllers for extra drive cages, with specific models like P420 or P830 offering different capabilities.
- SAS Expander Support: Check whether your server supports SAS expanders, especially if planning to expand drive bays beyond the default configuration.
- Physical Slot Type: Confirm available PCIe slots or dedicated storage slots required by modular controllers.
- Non-HPE Systems: While PCIe RAID cards can theoretically work in non-HPE systems, compatibility and feature support may vary.
Cache Options and Battery Backup
- Look for Flash-Backed Write Cache (FBWC) for enhanced performance and data safety.
- Consider the HPE Smart Storage Battery to protect data during power loss and support multiple devices.
Supported RAID Levels
Ensure your HPE RAID card supports the required RAID levels for your performance and data protection needs, such as RAID 0, 1, 5, 6, 10, 50, and 60.
Specific HPE RAID Card Models and Series
| Model / Part Number | Server Generation | Key Features / Cache | Supported Drives / Ports | Notes |
| HP Smart Array P420/1GB FBWC | Gen8 | 1GB FBWC, 6Gb SAS | 2 internal ports | Recommended for 8SFF upgrade |
| HP Smart Array P822 | Gen8 | - | 2 internal ports | Limited expansion across cages |
| HP Smart Array P830 | - | - | Up to 16 drives | Combines cages into one array |
| HPE P440AR/2GB FBWC | Gen9 | 2GB FBWC, 12Gb SAS | 2 ports | High-performance, efficient management |
| HPE E208i-a 2GB | Gen10 | 2GB, 12Gb SAS | 2 ports | Optimized for Gen10 servers |
| HPE P408i-a SR Gen10 | Gen10 | 2GB FBWC, 12Gb SAS, PCIe 3.0 x8 | 8 internal SAS lanes | Supports mixed mode, encryption |
| HPE P816i-a 4GB Cache | Gen10 | 4GB Cache | Up to 16 drives | High scalability |
| HPE H240AR 12Gb/s HBA | Gen9 | 12Gb SAS | Dual Port | For direct-attached storage |
Practical Buyer Tips
- Check for licensing requirements for specific RAID management features.
- Be aware of warranty implications if using non-official parts.
FAQ Section
Q1: What is the primary purpose of a RAID card for HPE servers?
A: To manage multiple drives for improved data protection, storage performance, and fault tolerance.
Q2: Can a single RAID card span RAID across multiple drive cages in an HPE DL380p G8?
A: Typically, it requires additional controllers due to limitations with SAS expander support; however, the P830 can combine both cages.
Q3: What are HPE Smart Array controllers?
A: Enterprise-grade RAID controllers designed by HPE for ProLiant servers, offering robust data protection and efficiency.
Q4: Where can I buy a RAID card for HPE servers?
A: You can purchase from server hardware vendors specializing in HPE, including router-switch.com for comprehensive selection and support.
For a comprehensive selection of HPE RAID cards and upgrade guidance, visit router-switch.com to find the right solutions for your HPE server environment.