DELL USC-51 Poweedge Perc Sas Raid Controller UCS-51 5I

( Brand: Dell ), ( Manufacturer Part Number: USC-51 ), ( Part Type: Controller ), ( Network Ports: Sas ), ( Compatible Port: Pci )

Review DELL Poweedge Perc 5i Sas Raid Controller

The **Dell USC-51 PowerEdge UCS 51 Perc 5/i SAS RAID Controller** is a high-performance, enterprise-grade storage solution designed to deliver uncompromising reliability, scalability, and efficiency for mission-critical workloads within Dell s Unified Computing System (UCS) environment. Engineered to integrate seamlessly with Dell s PowerEdge servers, this **Perc 5/i** RAID controller leverages advanced SAS (Serial-Attached SCSI) technology to optimize data protection, performance, and storage management for demanding applications such as virtualization, database hosting, and high-availability clusters. Built on Dell s proven **PowerPath** and **Storage Manager** software suite, the Perc 5/i offers a robust set of features, including **hardware RAID 0, 1, 5, 6, 10, and 50**, ensuring data redundancy, fault tolerance, and near-linear performance scaling across multiple drives. Its **6Gbps SAS connectivity** enables rapid data transfer rates, reducing latency and accelerating I/O operations, which is critical for environments running resource-intensive workloads like VMware ESXi, Microsoft SQL Server, or Oracle databases. The controller s **dual-core processor architecture** and **128MB of cache memory** further enhance its ability to handle concurrent requests efficiently, minimizing bottlenecks and ensuring consistent performance even under peak loads. With support for **up to 256 logical drives** and **hot-swappable battery backup modules (BBUs)**, the Perc 5/i provides enterprise-grade durability, allowing for uninterrupted operations during power fluctuations or drive failures. Additionally, its **Dell OpenManage integration** simplifies administration through centralized monitoring, firmware updates, and configuration management, streamlining IT operations and reducing downtime. Whether deployed in a standalone server or as part of a larger UCS infrastructure, the **Perc 5/i** serves as a cornerstone for building resilient, high-performance storage solutions that meet the rigorous demands of modern data centers.

### **Pros and Cons of buying a Dell USC-51 (PowerEdge UCS 51) with PERC 5/i SAS RAID Controller**

#### **Pros**

1. **Reliability and Performance** The Dell PowerEdge UCS 51 is a well-established server platform designed for enterprise workloads, offering high availability, scalability, and performance. The PERC 5/i RAID controller provides hardware-based RAID management, improving data protection and reducing CPU overhead compared to software RAID.

2. **RAID Support** The PERC 5/i supports RAID levels 0, 1, 5, 6, and 10, allowing for data redundancy and performance optimization. This is particularly useful for databases, virtualization, and storage-intensive applications where reliability is critical.

3. **Compatibility with Dell EMC Storage** The UCS 51 integrates seamlessly with Dell EMC storage solutions, including VMAX, PowerStore, and PowerScale, making it ideal for large-scale data centers that rely on Dell s ecosystem.

4. **Virtualization Support** The server is optimized for virtualization workloads, supporting VMware ESXi, Microsoft Hyper-V, and other hypervisors. The PERC 5/i provides efficient virtual disk (vDisk) management, which is beneficial for virtual environments.

5. **Dell s Enterprise Support** Dell offers comprehensive technical support, including 24/7 assistance, firmware updates, and hardware replacement under warranty. This reduces downtime and ensures long-term reliability.

6. **Scalability** The UCS 51 can be configured with multiple processors, memory, and storage options, allowing it to scale as business needs grow. The PERC 5/i also supports up to 16 drives, making it suitable for expanding storage requirements.

7. **Energy Efficiency** Dell s PowerEdge servers are designed with power-saving features, including idle-state processing and efficient cooling, which can reduce operational costs in data centers.

8. **Security Features** The UCS 51 includes hardware-based security features such as Secure Boot, iDRAC (Integrated Dell Remote Access Controller) for remote management, and support for TPM (Trusted Platform Module) for encryption.

9. **Cost-Effective for Mid-Range Workloads** Compared to high-end UCS servers, the UCS 51 offers a balanced combination of performance and cost, making it a practical choice for mid-sized businesses or departments within larger enterprises.

10. **Legacy and Future-Proofing** While newer PERC controllers (e.g., PERC H740) offer advanced features like NVMe support, the PERC 5/i remains a solid choice for environments where SAS drives are sufficient, and budget constraints exist.

---

#### **Cons**

1. **Outdated Technology** The PERC 5/i is an older RAID controller (released around 2010 2012), lacking modern features such as NVMe support, persistent memory, or advanced data reduction technologies like deduplication or compression. This may limit its usefulness in future-proofing storage solutions.

2. **Limited Drive Support** The PERC 5/i primarily supports SAS drives, which are slower and less dense than NVMe or newer SATA drives. This can impact performance in high-I/O workloads where newer storage technologies would be more efficient.

3. **No Native SSD Support for High-Performance Workloads** While the PERC 5/i can manage SSDs, it does not optimize for high-speed NVMe SSDs, which are critical for modern databases, analytics, and AI workloads. Newer PERC controllers (e.g., PERC H740) handle NVMe more efficiently.

4. **Firmware and Driver Limitations** Older controllers may not receive long-term firmware updates or driver support from Dell, potentially leaving the system vulnerable to security patches or compatibility issues with newer operating systems.

5. **Higher Latency in RAID 5/6** RAID 5 and RAID 6 on the PERC 5/i can introduce higher latency due to the write penalty associated with distributed parity. For performance-critical applications, RAID 10 or newer RAID levels (e.g., RAID 50) on more advanced controllers may be preferable.

6. **No Built-in Data Reduction** Unlike newer PERC controllers, the PERC 5/i does not support features like thin provisioning, deduplication, or compression, which can reduce storage costs and improve efficiency in modern data centers.

7. **Limited Expansion Options** The UCS 51 s expansion capabilities are more limited compared to newer UCS servers, which may offer additional PCIe slots, more memory channels, or better networking options.

8. **Potential for Higher Maintenance Costs** As the hardware ages, replacement parts (e.g., PERC 5/i cards, SAS HBAs) may become harder to source or more expensive, increasing long-term maintenance costs.

9. **No Support for Modern Virtualization Features** Newer virtualization workloads (e.g., containerized applications, Kubernetes) may benefit from features like persistent memory or advanced caching that are absent in the PERC 5/i.

10. **Deprecation Risk** Dell may eventually discontinue support for the PERC 5/i, leaving users without official updates or compatibility guarantees for future software or hardware integrations.

---

### **Conclusion**

The Dell PowerEdge UCS 51 with the PERC 5/i SAS RAID controller remains a **reliable, cost-effective choice for mid-range enterprise workloads** where SAS drives are sufficient, and performance requirements are moderate. It excels in environments where **data redundancy, virtualization, and Dell ecosystem integration** are priorities, and where the workload does not demand the latest storage technologies (e.g., NVMe, persistent memory).

However, for **modern high-performance, high-I/O, or future-proofing needs**, the PERC 5/i s limitations such as lack of NVMe support, outdated RAID features, and potential long-term maintenance challenges make it less ideal. If budget allows, upgrading to a newer UCS server with a **PERC H740, H840, or similar controller** would provide better scalability, efficiency, and support for emerging workloads.

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### **Recommendation**

- You are running **legacy or mid-range workloads** (e.g., file servers, basic virtualization, database backups) where SAS drives are adequate.

- You are **already invested in Dell s ecosystem** and need a cost-effective, reliable server with RAID protection.

- Your budget is limited, and you prioritize **proven reliability over cutting-edge features**.

- You plan to **replace the server within 3 5 years**, avoiding long-term dependency on outdated hardware.

- You require **NVMe SSDs, persistent memory, or advanced data reduction** for modern workloads (e.g., big data, AI, high-frequency trading).

- Your workloads demand **lower latency or higher throughput**, where newer RAID controllers (e.g., PERC H740) or software-defined storage solutions would be better.

- You anticipate **long-term use (5 years)** and want to ensure compatibility with future software, security patches, and hardware upgrades.

- You are considering **scaling to higher performance tiers**, where newer UCS servers (e.g., UCS C-Series, PowerEdge R750) offer better expansion and efficiency.

For most **new deployments or performance-critical environments**, investing in a newer UCS server with a modern PERC controller (e.g., H740, H840) is strongly recommended to future-proof the infrastructure. However, the UCS 51 with PERC 5/i remains a **practical and cost-effective solution for specific use cases** where its limitations are not dealbreakers.

Details:

Dell PoweEdge UCS-51 PERC 5i SAS RAID Controller.

part #: usc51 prices

• $17.50-$119.00

specifications diskcontrolle:

• brand: Dell
• mpn: Usc-51
• part type: Controller
• network ports: Sas
• compatible port: Pci

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