IBM TS4500 Tape Library

The IBM TS4500 is IBM's modular, high-density tape library, designed to help midsized and large enterprises handle growing backup and long-term retention demands without a corresponding jump in data centre footprint, power or cost. It supports LTO Ultrium and IBM Enterprise Tape technologies side by side, giving organisations a flexible upgrade path as capacity and throughput requirements grow.

Key Features

• Modular growth — expand from a single L-frame to a multi-frame configuration, scaling up to thousands of cartridges as your retention requirements grow.
• Dual robotic accessors — improve mount performance and overall system availability, so backup and restore jobs aren't waiting on a single robot.
• Broad drive support — compatible with multiple generations of LTO Ultrium and IBM Enterprise (3592) tape drives, so you're not locked into a single media type.
• High cartridge density — a compact footprint design that helps optimise data centre floor space compared with less dense library architectures.
• File-level access via LTFS — IBM's Linear Tape File System standard lets you access tape-stored data without needing proprietary applications.
• Flexible logical partitioning — create and reconfigure logical libraries, and assign any drive to any logical library, as your environment changes.

Detailed Specifications

• Maximum number of expansion frames — 17
• Base frame LTO tape capacity — 730 slots (frame 1) / 23,170 slots maximum
• Maximum number of drives — 16 (frame 1) / 128 per library maximum
• LTO-10 tape capacity — 21.9PB native
• LTO-10E tape capacity — 29.2PB native
• LTO-9 tape capacity — 13.1PB native
• Host connect interface — Fibre Channel

Why Choose the TS4500

Tape remains one of the most cost-effective mediums for long-term data retention, and the TS4500 is built to deliver that economics at real enterprise scale. Its modular design means you're not forced into an oversized initial purchase — start with a base configuration and expand the library as your data grows, without a disruptive re-architecture. Combined with LTFS support and broad drive compatibility, it's a practical foundation for both active backup workflows and long-term compliance archives.

The TS4500 is increasingly deployed as part of a cyber-resilient backup and archive tier — providing an immutable, offline layer that protects data from ransomware, insider threats and accidental deletion, while reducing the long-term cost of retaining large or fast-growing datasets such as security logs, research data and business records.

Common Use Cases

• Secure data archiving — meet regulatory retention requirements for critical, long-lived data.
• Backup and restore — accelerate backup windows and streamline restores with automated tape access.
• Disaster recovery — deploy as part of a hybrid backup and recovery strategy, integrating cloud or disk tiers.
• Media & entertainment — manage large unstructured data sets efficiently, including video and multimedia assets.

Not sure whether the TS4500 or a different IBM tape library fits your environment? Talk to Fortuna Data. As an IBM Silver Partner we can help you scope the right combination of drives, media and library capacity for your retention strategy and budget.