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HP P420-0GB Smart Array SATA 6Gb/s SAS 512MB PCIe Raid Controller
- Smart Array P420 controller
- PCIe interface
- Supports SATA 6Gb/s and SAS drives
- 512MB cache memory
- Advanced RAID capabilities
- Provides RAID levels 0, 1, 5, 6, 10, 50, 60
- Lacks integrated battery backup for cache protection
- Suitable for environments where cache protection is not critical or managed externally
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Product Overview
The HP P420-0GB Smart Array Controller is a PCIe-based RAID controller supporting SATA 6Gb/s and SAS drives. It features 512MB of cache memory but does not include a dedicated battery backup unit (BBU) or cache protection module.
Technical Information
| Controller Type | Smart Array P420 |
| Interface | PCIe |
| Drive Support | SATA 6Gb/s, SAS |
Additional Specifications
| Cache Memory | 512MB |
| RAID Levels | 0, 1, 5, 6, 10, 50, 60 |
| Cache Protection | None (Requires external BBU) |
Product Description
The HP P420-0GB Smart Array Controller is a PCIe-based RAID controller designed to manage SATA 6Gb/s and SAS drives in server environments. It comes equipped with 512MB of cache memory, which aids in accelerating read and write operations, thereby improving storage performance. The controller supports a wide array of RAID configurations, including RAID 0, 1, 5, 6, 10, 50, and 60, offering flexibility for various data protection and performance needs. The key distinction for the P420-0GB model is the absence of an integrated Battery Backup Unit (BBU) or Flash-Backed Write Cache (FBWC). While it has 512MB of cache, this cache is volatile and data written to it is lost during a power failure unless an external BBU is connected and configured. This makes it suitable for environments where the risk of data loss during power interruptions is mitigated or where performance is prioritized over immediate cache protection. This controller is a viable option for servers that require robust RAID functionality and support for modern storage interfaces, provided that the lack of integrated cache protection is acceptable for the intended application. It offers the core Smart Array features for data management and performance enhancement.
