511026 Rev. 07-01-19
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2
Product Overview
The Qualstar Q40 is a 3U highly scalable library system. The Q40 is expandable, allowing a user to grow
their tape storage capacity as their data requirements increase.
All Q40 installations begin with the 3U Base Module, with capacity for 32 tape cartridges and 3 half-height
LTO tape drives.
Each Expansion Module provides an additional 40 tape cartridges and supports an additional 3 half-
height LTO tape drives.
Up to 6 Expansion Modules can be added to a Base Module, bringing the total library capacity to 272
tape cartridges and 21 half-height LTO tape drives.
2.1
Supported Library Configurations – Rackmount Installation
All Q40 Libraries start with a Base Module. Up to 6 Expansion Modules can be added as needed to
support customer requirements. The architecture has been designed to support a maximum of 3
Expansion Modules above and 3 Expansion Modules below. The Base Module must be mounted with 9U
of empty space above and 9U of empty space below to ensure a full stack can be installed. Table 1
shows the supported configurations for libraries ranging from one to seven total modules.
The Base Module is depicted by the following image with the Operator Control Panel shown in yellow:
Each Expansion Module is represented by the following image with a large clear viewing window in the
center.
Table 1: Supported Library Configurations
Module Quantity
Supported Library Configurations
1 Module Library
Base Module
