Overview
The overview of the features and functions of the IBM® TS4500 tape library is useful
for high-level evaluation of the product and planning for the implementation of the
product.
Introduction to the IBM TS4500 tape library
The TS4500 tape library is a next-generation cloud storage solution that delivers high storage density and integrated management.
TS4500 tape library structure
Library performance
The library performance values show the relative performance of the systems and are not meant to be absolute indicators of performance in your specific environment. Performance values, such as cartridge inventory times, mount performance, and cartridge move time, are obtained for the TS4500 tape library using specific measurements.
Tape drives
The TS4500 tape library supports LTO and 3592 tape drives.
Tape cartridges
Libraries that are installed with LTO tape drives use LTO tape cartridges. Libraries that are installed with 3592 tape drives use 3592 tape cartridges.
Elastic capacity
In a dual-accessor configuration, the TS4500 tape library contains limited access columns that you can use for special situations. You can use these columns to store least recently used data cartridges, or as a temporary overflow area. The use of the limited access columns (Elastic Capacity) allows dual-accessor customers to achieve the same storage capacity as if the library was single accessor.
TS7700 backend switch support
A TS4500 tape library can be connected to a TS7700 system using two 16 Gb fibre channel switches. The switches can be installed in the bottom of the TS4500 frame, or in a TR1 rack mounted above the TS4500.
Supported device drivers
IBM provides device driver support for the LTO and 3592 tape drives, and the robotics in the TS4500 tape library .
Compatible servers and software
The TS4500 tape library is supported by a wide variety of servers, operating systems, and adapters. There are several ways to determine the servers and software that support the TS4500 tape library .
Attachment interfaces
The TS4500 tape library uses the Fibre Channel interface for data transmission with attached tape drives and the Gigabit Ethernet interface for library communications.
Library sharing
The TS4500 tape library can be configured into one or more logical libraries that can be shared by multiple applications.
Advanced Library Management System
The Advanced Library Management System (ALMS) allows the locations of cartridges in the tape library to be virtualized.
Power structure of the TS4500 tape library
This section introduces the power structure that is provided by the TS4500 tape library .
Control path failover, data path failover, and load balancing
The path failover feature of the TS4500 tape library ensures the use of a redundant communication path when the primary path fails.
Library Control Card failover
The TS4500 tape library allows for automatic Library Control Card (LCC) failover.
VOLSER ranges
Volume serial (VOLSER) ranges are used to assign cartridges to specific logical libraries in the TS4500 tape library .
Increasing capacity
Install capacity on demand (CoD) features to increase the cartridge capacity of frames in the TS4500 tape library .
Command-line interface
Use the command-line interface (CLI) program to access tape library functions outside of the GUI interface.
Remote support
Remote support for the TS4500 tape library involves the use of a Call Home feature to detect and solve problems. Also, remote support requires several important security functions.
Library monitoring and querying
The TS4500 tape library provides several way to monitor library status and query the library for operating details.
Secure Socket Layer (SSL) functions
The TS4500 tape library supports secure socket layer (SSL), which is a protocol for transmitting private documents across the Internet.
Remote authentication
The TS4500 tape library supports remote authentication of user credentials using LDAP (with optional RACF authentication) or Kerberos.
IPv6 functionality
The TS4500 tape library supports internet protocol (IP) addresses in IPv4 and IPv6 formats.