IBM® TS4500 Tape Library is a next-generation storage solution designed to help midsized and large enterprises respond to cloud storage challenges. These challenges include high data volume growth in cloud and hybrid cloud infrastructures, increasing cost of storage footprints, the difficulty of migrating data across vendor platforms, and the increased complexity of IT training and management as staff resources shrink.


Enable flexible growth

Leverage flexibility that enables the library to grow from both the right and the left side of the first L frame since models can be placed in any active position.

Support capacity on demand

Utilize support for entry-level, intermediate and base-capacity configurations.

Utilize dynamic storage management

Use the Advanced Library Management System to support dynamic storage management, enabling users to create and change logical libraries and configure any drive into any logical library.

Increase overall system availability

Help increase mount performance and overall system availability with dual robotic accessors.

Gain file-level access to data

Access data at the file-level without the need for proprietary applications. IBM TS4500 supports IBM Spectrum Archive with IBM Linear Tape File System (LTFS) technology.

Upgrade with a flexible path

Provide a flexible upgrade path for users who want to expand their tape storage as their needs grow.

Key features of the IBM TS4500 Tape Library

Uncompressed data storage in a single frame

Store up to 8.76 PB of data in a single 10 square-foot library using LTO 8 cartridges or 11 PB with 3592 cartridges.

Policy-based automatic media verification

Proactively monitor archived data with policy-based automatic media verification.

Data encryption and WORM media

Strengthen security and regulatory compliance with data encryption and write-once-read-many (WORM) media.

IBM Spectrum Archive support

Simplify user access to data stored on tape cartridges via IBM Spectrum Archive™ featuring IBM Linear Tape File System™ technology.

Compatibility with the latest IBM LTO® Ultrium® technology

This tape library supports the latest generation of Linear Tape-Open® (LTO) technology, offering up to 30 TB of data storage per cartridge (12 TB native), twice the compressed capacity of the previous version. Also, an initialization feature will allow you to use new LTO generation 7 cartridges as LTO-7 Type M media cartridges ready to be initialized on site to increase capacity from 6 TB to 9 TB. Initialization capability will be enabled on TS4500 by updating to the latest library firmware.

Optional 10U of rack space available above the library

Reduce the storage footprint and simplify cabling with 10U of rack space on top of the library.

Frame definition L25—Base frame for TS1160, TS1155, TS1150, and TS1140 (3592) drives and cartridges—includes 32 input/output (I/O) slots D25—Drive-capable and storage expansion frame for TS1160, TS1155, TS1150 and TS1140 (3592) drives and cartridges S25—Storage-only expansion frame for 3592 cartridges L55—Base frame for LTO drives and cartridges—includes 36 I/O slots D55—Drive-capable and storage expansion frame for LTO drives and cartridges S55—Storage-only expansion frame for LTO cartridge Tape drive types TS1160, TS1155, TS1150, and TS1140 (3592), LTO Ultrium 8, 7, 6 and 5 tape drives Number of frames per library One base frame, up to 17 expansion frames with maximum of 7 Dx5 frames Number of drives Up to 16 per frame (up to 12 in frame 1) Up to 128 per library Number of tape cartridges L25—up to 660 (up to 550 in frame 1) D25—up to 740 (up to 590 in frame 1) S25—up to 1,000 (up to 798 in frame 1) Total supported per library: up to 17,550 L55—up to 882 (up to 730 in frame 1) D55—up to 970 (up to 774 in frame 1) S55—up to 1,320 (up to 1,054 in frame 1) Total supported per library: up to 23,170 Capacity* 3592 advanced cartridges: up to 351 PB per library (1.05 EB with 3:1 compression) LTO Ultrium 8 cartridges: up to 278 PB per library (up to 695 PB with 2.5:1 compression) Operating systems support See the IBM System Storage Interoperation Cente