DELL 0GD93VV Perc Raid Adapter Lp Dual Port Sas Nv Cache H840 Cache/batt

( Brand: Dell ), ( Manufacturer Part Number: 0GD93VV ), ( Part Type: Adapter ), ( Connectors: Sas ), ( Item Height: Low Profile ), ( Compatible Port: Pci Express X8 )

Review DELL Perc Raid Adapter 0gd93v Gd93v Lp External Dual port Sas Nv Cache/batt

The **Dell 0GD93VV PERC H840 RAID Adapter** is a high-performance, enterprise-grade storage solution designed to deliver unparalleled reliability, scalability, and efficiency for mission-critical workloads. Part of Dell s **PowerEdge** server lineup, this **dual-port SAS RAID controller** integrates seamlessly with Dell s **12th Generation** and later servers, offering a robust foundation for data-intensive environments such as virtualization, database management, and high-availability clusters. Engineered with **NVMe (Non-Volatile Memory Express) cache and a battery-backed write cache (BBWC)**, the H840 ensures lightning-fast data processing while maintaining data integrity through redundant power protection, making it ideal for applications where uptime and performance are non-negotiable.

At its core, the **PERC H840** leverages **Dell s advanced RAID technology**, supporting a comprehensive suite of RAID levels including **RAID 0, 1, 5, 6, 10, 50, and 60** to optimize storage configurations based on performance needs, redundancy requirements, and cost efficiency. Its **dual-port SAS connectivity** (via two internal Mini-SAS HD connectors) enables high-speed data transfer rates of up to **12 Gbps per port**, significantly enhancing I/O throughput and reducing latency in multi-path environments. This dual-port architecture also enhances fault tolerance by providing redundant paths for data access, ensuring continuous operation even in the event of a single path failure.

The **NVMe cache** feature introduces a revolutionary performance boost by utilizing high-speed **PCIe-based NVMe SSDs** to accelerate read/write operations, drastically improving response times for frequently accessed data. When paired with the **battery-backed write cache (BBWC)**, this cache technology not only accelerates performance but also guarantees data safety by maintaining power to critical write operations during unexpected power interruptions. The BBWC, combined with Dell s **Dell Storage Manager (DSM)** software, allows administrators to monitor, configure, and optimize RAID settings remotely, streamlining storage management and reducing downtime.

Built with **enterprise-grade durability**, the PERC H880 is designed to withstand the rigors of 24/7 operations, featuring **hot-plug SAS drives** for non-disruptive maintenance and **Dell s ProSupport** compatibility for proactive diagnostics and troubleshooting. The adapter s **low-profile (LP) form factor** ensures compatibility with a wide range of Dell servers, while its **Dell Optimized** status guarantees seamless integration with Dell s ecosystem of storage solutions, including **Dell EMC PowerScale, PowerStore, and VxRail** systems. Whether deployed in a **hyper-converged infrastructure (HCI)**, a **database-heavy environment**, or a **high-performance computing (HPC)** setup, the PERC H840 delivers a perfect balance of speed, reliability, and scalability, making it a cornerstone for modern data centers demanding peak performance and resilience.

The Dell PERC H840 RAID adapter (part number 0GD93VV) is a high-end, enterprise-grade RAID controller designed for servers requiring advanced storage management, performance, and reliability. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Dell PERC H840**

1. **Enterprise-Grade Reliability**

The H840 is built for mission-critical environments, featuring hardware RAID with battery-backed cache (BBC) to ensure data integrity during power loss or unexpected shutdowns. This reduces the risk of data corruption compared to software RAID or non-cache-equipped controllers.

2. **Dual-Port SAS Connectivity**

The dual-port design allows for improved redundancy and failover capabilities. If one port fails, the system can continue operating, minimizing downtime. This is particularly useful in high-availability setups.

3. **NVMe Cache (Non-Volatile Memory Cache)**

The H840 includes NVMe-based cache (up to 1.2TB) for accelerated read/write performance. This significantly speeds up I/O operations compared to traditional SSD or HDD-based caching, making it ideal for workloads requiring low latency (e.g., databases, virtualization, or high-performance computing).

4. **Advanced RAID Levels**

Supports RAID 0, 1, 5, 6, 10, 50, and 60, providing flexibility for different performance and redundancy needs. RAID 60, for example, offers high redundancy with good performance, while RAID 10 balances speed and fault tolerance.

5. **Dell OpenManage Integration**

The controller integrates seamlessly with Dell s OpenManage suite, allowing for centralized management, monitoring, and remote diagnostics. This simplifies IT administration, especially in large-scale environments.

6. **Hot-Swappable and Scalable**

Compatible with Dell PowerEdge servers that support hot-swappable drives and expanders, enabling non-disruptive maintenance and scalability. This is critical for 24/7 operations.

7. **Low Latency and High Throughput**

The H840 is optimized for low-latency operations, making it suitable for applications like virtualization (e.g., VMware, Hyper-V), databases (e.g., Oracle, SQL Server), and high-frequency trading systems.

8. **Battery-Backed Cache (BBC)**

The BBC ensures that cached data is written to disk before a power loss, preventing data loss in the event of a sudden shutdown. This is a critical feature for databases and transactional workloads.

9. **Compatibility with Dell s Server Lineup**

Works with a wide range of Dell PowerEdge servers (e.g., R740, R750, R940), ensuring broad compatibility for enterprise deployments.

10. **Dell Warranty and Support**

As a Dell-branded component, it comes with Dell s standard warranty and support, which includes access to firmware updates, technical support, and replacement parts if needed.

---

### **Cons of the Dell PERC H840**

1. **High Cost**

The H840 is an expensive RAID adapter, especially when compared to lower-end controllers (e.g., PERC H330 or H730) or even third-party options like LSI or Adaptec. The cost may not be justified for small businesses or non-critical workloads.

2. **Overkill for Non-Enterprise Workloads**

If your use case doesn t require hardware RAID, battery-backed cache, or NVMe acceleration (e.g., a basic file server or home lab), the H840 is unnecessarily powerful and costly. In such cases, a simpler controller (e.g., PERC H330) or even software RAID (e.g., Linux mdadm) might suffice.

3. **Firmware and Configuration Complexity**

The H840 s advanced features (e.g., NVMe cache, RAID levels) require familiarity with RAID configuration and Dell s OpenManage tools. Misconfiguration can lead to performance issues or data loss, especially for users unfamiliar with enterprise storage management.

4. **Limited NVMe Support (Compared to Modern Controllers)**

While the H840 supports NVMe caching, it does not natively support NVMe drives as boot or data drives (unlike newer controllers like the PERC H850 or H860). If your workload relies heavily on NVMe SSDs, you may need additional adapters or configurations.

5. **Vendor Lock-In**

Dell s proprietary ecosystem means that replacing the H840 with a third-party controller (e.g., LSI SAS 9207) could require additional licensing or compatibility testing. This lock-in can be problematic if you later need to switch vendors.

6. **Power Consumption and Heat**

As a high-performance RAID controller, the H840 consumes more power and generates more heat than lower-end models. This may require additional cooling or power considerations in your server setup.

7. **Licensing Costs for Advanced Features**

Some advanced features (e.g., full NVMe cache utilization or certain RAID levels) may require additional licensing, adding to the total cost of ownership.

8. **Deprecation Risk**

Dell periodically discontinues older models in favor of newer ones (e.g., PERC H860). While the H840 is still supported, it may eventually be phased out, leading to potential challenges with long-term firmware updates or parts availability.

9. **No Support for PCIe 4.0 or 5.0**

The H840 uses PCIe 3.0 x8, which may become a bottleneck in future-proofing for workloads requiring the latest PCIe speeds (e.g., high-end NVMe SSDs or GPUs).

10. **Learning Curve for Non-IT Professionals**

Managing the H840 effectively requires a basic understanding of RAID, storage protocols, and server administration. Non-technical users or small businesses without dedicated IT staff may struggle with setup and maintenance.

---

### **Conclusion**

The Dell PERC H840 is a **high-performance, enterprise-grade RAID adapter** ideal for environments where **data reliability, low latency, and advanced caching** are critical. It excels in **virtualization, databases, high-availability servers, and mission-critical workloads** where hardware RAID, battery-backed cache, and NVMe acceleration provide tangible benefits.

However, it is **overkill for basic file servers, home labs, or non-critical workloads**, where lower-cost or simpler controllers (e.g., PERC H330, H730, or even software RAID) would suffice. The high cost, complexity, and vendor lock-in also make it less attractive for small businesses or users who prioritize flexibility and cost efficiency.

If you are running a **Dell PowerEdge server in a production environment** (e.g., VMware ESXi, Oracle RAC, or SQL Server Always On) and need **hardware RAID, NVMe caching, and dual-port SAS redundancy**, the H840 is an excellent choice. For all other use cases, consider alternatives like:

- **PERC H330/H730** (for basic RAID without NVMe cache),

- **LSI SAS 9207-8i** (for third-party RAID with lower cost),

- **Software RAID** (for cost savings and flexibility),

- **PERC H860** (if you need newer features like PCIe 4.0 support).

---

### **Final Recommendation**

- You are deploying a **Dell PowerEdge server in a production environment** (e.g., virtualization, database, or high-availability workload).

- You require **hardware RAID, battery-backed cache, and NVMe acceleration** for performance-critical applications.

- You have the **budget and IT expertise** to manage an enterprise-grade RAID controller.

- You need **dual-port SAS redundancy** for fault tolerance.

- Your workload is **non-critical or basic** (e.g., file sharing, small business server).

- You are on a **tight budget** and can achieve similar results with a lower-cost controller.

- You lack **experience with RAID configuration and server administration**.

- You plan to **mix vendors** (e.g., using non-Dell servers or third-party storage) and want flexibility.

For most **enterprise deployments**, the H840 is a **strong, reliable choice**. For everything else, evaluate alternatives to ensure you are not paying for features you don t need.

Details:

It is in perfect working condition and the battery maintains a normal charge. This PERC H840 RAID controller was recently pulled from a working Dell Power Edge R640.

part #: 0gd93vv prices

• $179.00-$339.99

specifications diskcontrolle:

• brand: Dell
• mpn: 0gd93vv
• part type: Adapter
• connectors: Sas
• item height: Low Profile
• compatible port: Pci Express X8

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