The NR5PC Dell PERC H830 PCI-Express 3.0 SAS Controller with 2GB NV Cache is a high-performance storage controller designed for use with Dell PowerEdge servers. Here are some of its key features and benefits:
- High Performance: The NR5PC Dell PERC H830 controller provides high performance for demanding applications and workloads. It supports up to 2GB of NV cache and features 12Gb/s SAS interface speed.
- Scalability: The NR5PC Dell PERC H830 controller supports up to 255 SAS or SATA drives, enabling you to expand your storage capacity as needed.
- RAID Support: The NR5PC Dell PERC H830 controller supports RAID levels 0, 1, 5, 6, 10, 50, and 60, providing flexibility and data protection options for your storage.
- Monitoring and Management: The NR5PC Dell PERC H830 controller includes Dell OpenManage Storage Services (OMSS) software, which provides monitoring and management capabilities for your storage array. OMSS enables you to monitor performance, configure RAID settings, and manage storage tasks from a central console.
- Data Protection: The NR5PC Dell PERC H830 controller includes features such as online capacity expansion (OCE), online RAID level migration (RLM), and hot-swappable drives, which help to ensure data availability and protect against data loss.
- Energy Efficient: The NR5PC Dell PERC H830 controller features an energy-efficient design, which helps to reduce power consumption and cooling requirements.
The NR5PC Dell PERC H830 PCI-Express 3.0 SAS controller with 2GB NV cache provides hardware acceleration to improve the performance of disk I/O operations. The controller uses a cache to temporarily store frequently accessed data, which can speed up read and write operations. Proper cache management is essential to ensure optimal performance and data integrity.
Here are some best practices for cache management with the NR5PC Dell PERC H830 PCI-Express 3.0 SAS controller:
- Enable Write-back Cache: By default, the controller uses write-through cache mode, which immediately writes data to disk. Write-back cache mode can improve performance by allowing the controller to temporarily store data in cache before writing it to disk. However, write-back cache mode introduces the risk of data loss in the event of a power failure or system crash, so it is important to ensure that you have a battery backup unit (BBU) or super capacitor backup unit (SCBU) installed to protect against data loss.
- Monitor Cache Usage: Use the Dell OpenManage Server Administrator (OMSA) software to monitor the cache usage and ensure that it is not being exhausted. If the cache usage is consistently high, it may be necessary to increase the cache size or optimize the workload to reduce the amount of data being stored in cache.
- Disable Cache for Sequential Workloads: For sequential workloads, such as backups or large file transfers, caching may not provide significant performance benefits. In fact, it may even slow down the operations. To avoid this, it is recommended to disable caching for sequential workloads.
- Regularly Monitor Battery Backup Unit: If you are using a battery backup unit (BBU) or super capacitor backup unit (SCBU) to protect against data loss in write-back cache mode, it is essential to monitor the status of the backup unit regularly. Use the OMSA software to check the status of the backup unit and ensure that it is functioning correctly.
- Use Cache Safely with Virtualization: When using the controller with virtualization, it is important to ensure that the virtual machines are configured to use write-through cache mode. Write-back cache mode can introduce data consistency issues and data loss in a virtualized environment.
The NR5PC Dell PERC H830 is a high-performance RAID controller designed for use in enterprise-class servers. Here are the system requirements for the NR5PC Dell PERC H830:
- Server Compatibility: The NR5PC Dell PERC H830 is compatible with a variety of Dell PowerEdge servers, including PowerEdge R730, R730xd, R630, R530, R430, T630, T430, T330, and M630. Before purchasing the controller, ensure that it is compatible with your server.
- Operating System Compatibility: The NR5PC Dell PERC H830 is compatible with a variety of operating systems, including Microsoft Windows Server 2012 and 2012 R2, Red Hat Enterprise Linux 6.7 and 7.1, and VMware ESXi 5.5 and 6.0. Ensure that your operating system is supported before installing the controller.
- PCIe Compatibility: The NR5PC Dell PERC H830 requires a PCIe 3.0 x8 slot for installation. Ensure that your server has an available PCIe 3.0 x8 slot before purchasing the controller.
- Power Supply: The NR5PC Dell PERC H830 requires a minimum of 8 watts of power for operation. Ensure that your server has an adequate power supply to support the controller.
- Memory: The NR5PC Dell PERC H830 has 2GB of non-volatile cache. Ensure that your server has adequate memory to support the controller and any additional applications or workloads.
- Firmware: Before installing the NR5PC Dell PERC H830, ensure that the firmware on the controller is up-to-date and compatible with your server and storage environment.
It is essential to review the specific requirements and compatibility information for your server and storage environment before installing the NR5PC Dell PERC H830. The Dell website and product documentation are good resources for this information.
General Information- Brand: Dell
- MPN : NR5PC
- Type: Controller
- Sub-Type: SAS Controller
- Device Type : Storage Controller (Raid) - Plug-In Card - Low Profile
- Host Bus : PCIE 3.0 X8
- Interface : SAS 12GB/S
- Data Transfer Rate : 1.2 GBPS
- Buffer Size : 2GB NV
- Supported Devices : Hard Drive, Disk Array (Raid), Solid State Drive
- Channel Qty : 8
- SAS Connectors : 2x4 External
- Max Storage Devices Qty : 255
- Raid Level : Raid 0, Raid 1, Raid 5, Raid 6, Raid 10, Raid 50, JBOD, Raid 60
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