Lenovo ThinkSystem RAID 9350-8i 2GB Flash PCIe 12Gb Adapter (Part No. 03GX083) – High‑Performance 12 Gb/s SAS RAID Controller
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Lenovo ThinkSystem RAID 9350-8i 2GB Flash PCIe 12Gb Adapter (Part No. 03GX083) – High‑Performance 12 Gb/s SAS RAID Controller

Keywords

Lenovo ThinkSystem RAID 9350-8i, 03GX083 RAID controller, 12Gb SAS RAID adapter, PCIe 3.0 x8 RAID card, 2GB Flash cache RAID controller, SFF‑8643 RAID adapter, Enterprise server RAID controller

Description

The Lenovo ThinkSystem RAID 9350‑8i (PN 03GX083 / 4Y37A72483) is a premium-level 12 Gb/s SAS RAID adapter engineered for high-throughput, mission-critical server environments. Featuring a PCIe 3.0 x8 interface and 2 GB of flash-backed cache, it delivers accelerated data access and enhanced redundancy. Thanks to optimized caching algorithms and support for multiple RAID levels—including RAID 0, 1, 5, 6, 10, 50, 60, and JBOD—the adapter excels in both performance and data protection.

This intelligent RAID solution integrates seamlessly into enterprise servers like the ThinkSystem SR630 V2, SR650 V2, ST250, and ST550 series, offering robust compatibility with SAS and SATA HDDs/SSDs. Ideal for databases, virtualization, or storage consolidation use cases, it ensures high availability through hot-plug support, online capacity expansion, and automatic rebuild features.

Whether you're upgrading legacy servers or deploying new enterprise storage solutions, this enterprise server RAID controller balances performance and reliability. With full support for Windows Server, Linux distributions, and VMware ESXi, it offers flexible deployment, secure boot, and Smart PQI driver support.

Key Features

  • 12 Gb/s SAS and SATA support via PCIe 3.0 x8 interface
  • 2 GB flash-backed cache for high-speed read/write acceleration
  • Supports RAID 0, 1, 5, 6, 10, 50, 60, RAID‑1 Triple, RAID‑10 Triple, and JBOD
  • Up to 64 virtual disks and 64 arrays, scalable logical drives >2 TB
  • NCQ, dynamic caching algorithm, quick init, and background initialization
  • Hot-plug, hot spare support (global/dedicated/pooled), and staggered spin-up
  • Secure Boot and Smart PQI driver with MSI-X queueing
  • Low-profile form factor with SFF-8643 connectors, ideal for dense server chassis

Configuration

AttributeSpecification
Part Number (PN)03GX083 / 4Y37A72483
InterfacePCIe 3.0 x8
Connectors2× Mini‑SAS HD x4 (SFF‑8643)
Cache2 GB flash-backed
Max Drives Supported8 internal SAS or SATA
RAID Levels0,1,5,6,10,50,60, RAID‑1/10 Triple, JBOD
Form FactorLow-profile PCIe card
ChipsetMicrochip Luxor ROC PM8204 (Adaptec SmartRAID 3152‑8i)

Compatibility

Compatible with Lenovo ThinkSystem servers including SR150/250/530/550/570/590, SR630/SR630 V2/SR635/645/650/650 V2/655/665, SR850/850 V2/860/860 V2/950, as well as ST50/250/550/650 V2 models. The adapter supports mixed SAS/SATA drives (up to 12 Gb/s) and sector formats (512n, 512e, 4Kn).

Usage Scenarios

In database and virtualization environments, the RAID 9350‑8i significantly speeds up read/write operations by leveraging its 2 GB flash cache and PCIe 3.0 x8 connectivity. It’s ideal when lower latency and reliable data throughput are essential.

When deploying SAN/NAS or high-availability clusters, its support for multiple RAID levels, hot spares, and JBOD allows administrators to optimize for redundancy or capacity as needed. Integrations with Lenovo management tools simplify monitoring and maintenance.

For scalable server storage expansions, especially in 1U/2U low-profile chassis, this card's compact form and broad server compatibility make it an excellent fit. Features like hot-plug, staggered spin-up, and background init ensure minimal downtime during drives replacements.

Frequently Asked Questions

  1. Q: What is the benefit of 2 GB flash-backed cache?
    A: The flash-backed cache accelerates read/write tasks and secures cached data during power loss—boosting performance without risking data integrity.
  2. Q: Which RAID levels are supported?
    A: It supports RAID 0, 1, 5, 6, 10, 50, 60, RAID‑1/10 Triple, and JBOD—offering flexibility for performance vs. redundancy use cases.
  3. Q: Is it compatible with both SAS and SATA drives?
    A: Yes, it supports SAS and SATA HDDs/SSDs up to 12 Gb/s, though mixing SAS and SATA—or HDDs and SSDs—in one array isn’t recommended for performance consistency.
  4. Q: Can I use this card in VMware or Linux servers?
    A: Absolutely. It includes Smart PQI drivers with MSI‑X support for Windows Server, RHEL, SUSE, Ubuntu, and VMware ESXi 6.7+.
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