• Lenovo ThinkSystem ST558 – Scalable 4U Tower Server with Intel® Xeon® Scalable CPUs

    Keywords

    Lenovo ThinkSystem ST558, Intel Xeon Scalable, 4U tower server, TruDDR4 memory, AnyBay storage, NVMe bays, XClarity Controller, Predictive Failure Analysis, ThinkShield security, dual-socket server

    Description

    The [Lenovo ThinkSystem ST558](#Lenovo ThinkSystem ST558) is an enterprise-grade 4U rackable tower server powered by up to two Intel® Xeon® Platinum processors (up to 20 cores each, 2.1 GHz base, 4.0 GHz turbo) for mission-critical workloads. With six memory channels per CPU and TruDDR4 support at up to 2933 MT/s, it accommodates up to 768 GB of RDIMM or 768 GB LRDIMM memory, plus optional Intel® Optane™ DC Persistent Memory for a combined capacity of up to 2 TB in App Direct mode Lenovo Press.

    Storage configurability includes four hot-swap 3.5″ bays in the base model, expandable to eight 3.5″ or up to sixteen 2.5″ AnyBay bays supporting SAS, SATA, and direct-attach NVMe drives, delivering up to 154 TB of capacity and sub-millisecond I/O latency.

    Two internal M.2 slots (RAID 1) handle OS boot without consuming drive bays, and Broadcom 12 Gbps RAID controllers with up to 4 GB cache support large-scale storage arrays Lenovo Press.

    Lenovo’s XClarity suite—comprising embedded Controller, UEFI-based Provisioning Manager, and centralized Administrator—simplifies deployment, firmware updates, diagnostics, and power management, reducing provisioning time by up to 95 %

     Comprehensive ThinkShield security features—including TPM 2.0, Secure Boot, Platform Firmware Resiliency (PFR), and chassis intrusion detection—protect data throughout the server’s lifecycle

    Key Features

    • Dual Intel® Xeon® Scalable CPUs: Up to two Platinum-class processors (20 cores each, 2.1 GHz–4.0 GHz, 125 W TDP) for compute-intensive workloads

    • Up to 768 GB TruDDR4 Memory: 12 DIMM slots, 2666/2933 MT/s, ECC, SDDC, ADDDC, memory mirroring, rank sparing Lenovo Press

    • Flexible AnyBay Storage: 4× 3.5″ hot-swap bays standard; configurable to 8× 3.5″ or 16× 2.5″ supporting SAS/SATA/NVMe; 2× M.2 boot drives (RAID 1)

    • High-Performance RAID: Broadcom 12 Gbps SAS controllers (530i/730-8i/930-8i/930-16i/24i) with up to 4 GB cache; SW RAID for simple-swap baysLenovo Press

    • Enterprise Reliability: Predictive Failure Analysis, light-path LEDs, hot-swap drives/PSUs/fans, ASHRAE A4 support

    • Lenovo XClarity Management: Embedded XClarity Controller, Provisioning Manager, XClarity Administrator, Energy Manager, Redfish API

    • ThinkShield Security: Secure supply chain, TPM 2.0, Secure Boot, PFR firmware resilience, chassis intrusion switch

    Configuration

    ComponentSpecification
    Form Factor4U rackable tower server (502 × 175 × 420 mm)
    Processors1–2× Intel® Xeon® Scalable Platinum (up to 20 cores, 2.1 GHz base, 4.0 GHz turbo, 125 W)
    Memory12× TruDDR4 RDIMM/LRDIMM slots (64 GB max each), 2666/2933 MT/s; ECC, SDDC, ADDDC, mirroring, sparing
    Drive BaysBase: 4× 3.5″ hot-swap; options: 8× 3.5″ or 16× 2.5″ AnyBay; 2× M.2 boot (RAID 1)
    RAID & HBABroadcom 530i/730-8i/930-8i/930-16i/930-24i; non-RAID HBAs 430-8i/430-16i; Intel RSTe SW RAID
    Expansion SlotsUp to 6× PCIe 3.0 FH/LP; 1× reserved for M.2 adapter; optional NVMe switch adapter
    Network2× 1 GbE LOM; optional ML2 or PCIe adapters for 10/25/40/100 GbE
    Power SuppliesUp to 2× 550 W–750 W Platinum or 750 W Titanium hot-swap (N+1/N+N redundancy)
    ManagementXClarity Controller (embedded), Provisioning Manager (UEFI), XClarity Administrator, Energy Manager
    SecurityTPM 2.0, Secure Boot, PFR, chassis intrusion switch, ThinkShield suite

    Compatibility

    Certified for leading OS and hypervisors:

    • Microsoft Windows Server 2016/2019 

    • Red Hat Enterprise Linux 7.x/8.x 

    • SUSE Linux Enterprise Server 12/15 Lenovo Press

    • VMware vSphere ESXi 6.x/7.x 

    Usage Scenarios

    • Remote Office/Branch Office (ROBO): Rackable tower form factor, quiet operation, and flexible storage make the ST558 ideal for distributed deployments with local file/print, POS, or edge computing needs.

    • Virtualization & VDI: Up to 40 threads per CPU and AnyBay NVMe bays accelerate VM boot storms and user profile storage for high-density desktop deployments.

    • Big Data & Analytics: High memory bandwidth, low-latency NVMe drives, and scalable storage capacity support in-memory analytics, real-time data processing, and HPC workloads Lenovo Press.

    Frequently Asked Questions

    Q1: What is Lenovo AnyBay?
    A1: AnyBay drive bays accept SAS, SATA, or U.2 NVMe SSDs interchangeably, allowing mixed drive types in the same sled for optimized performance versus capacity configurations.

    Q2: How much memory can the ST558 handle?
    A2: The server supports up to 12 TruDDR4 RDIMMs or LRDIMMs (64 GB each) for 768 GB total, or 12 Intel® Optane™ DC Persistent Memory modules (128 GB–512 GB) for a combined 2 TB in App Direct mode Lenovo Press.

    Q3: Which RAID controllers are available?
    A3: Broadcom 12 Gbps SAS RAID adapters range from cacheless 530i to flash-backed 930-16i/24i with up to 4 GB cache; software RAID and Intel RSTe cover simple-swap bays Lenovo Press.

    Q4: How does XClarity improve manageability?
    A4: XClarity Controller provides agent-free health monitoring and alerting, Provisioning Manager offers UEFI-based setup and recovery, and XClarity Administrator centralizes firmware updates, provisioning, and energy management—cutting manual tasks by up to 95 %.

    Q5: What reliability features are built in?
    A5: Predictive Failure Analysis for CPUs, memory, HDDs/SSDs, fans, and PSUs; light-path LEDs for quick diagnostics; hot-swap redundancy; and ASHRAE A4 certification for extended temperature operation

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