Data Management and Storage Products

Q40 Mid-range and Enterprise Tape Library



The Qualstar Q40 Mid-range and Enterprise tape library is designed to be Simply Reliable™, providing superior performance, reliability and scalability for short-term backup/disaster recovery and long-term archiving requirements. The Q40 system offers capacity scaling from forty to two hundred and eighty cartridge slots, and throughput scaling from one to twenty-one tape drives. The Q40 utilizes LTO-6, LTO-7 or LTO-8 tape drives, with each 3U high Q40 library module delivering up to 480 terabytes of storage capacity using LTO-8 tapes in native mode, or up to 1.2 petabytes using LTO-8 tapes in compressed mode. The Q40 base unit may be expanded with up to six additional expansion modules supporting creation of a single library system with as much as 8.4 petabytes (compressed) storage capacity in a single 21U rack. The Q40 uses a single robot to service all drives and media, maximizing cost effectiveness.

The operator control panel uses an intuitive GUI and incorporates wizards making the system easy to configure and use. The same functionality may also be accessed remotely via the browser-based remote management interface (RMI). This enables IT administrators to remotely configure, manage and diagnose the library from anywhere in the world via the Internet. The Q40 system is also easy to service and repair, with field replaceable tape drives, power supplies and controller board units.

Key Highlights

  • 40 to 280 cartridges (base + 6 expansion modules)
  • 1 to 3 tape drives per module, up to 21 drives (base + 6 expansion modules)
  • LTO-6, LTO-7 or LTO-8 drives with SAS or FC interfaces
  • 4" monochrome display with button controls in base unit
  • Simple expansion, no special alignment required
  • Cartridge magazines slide out for bulk loading
  • Remote management via Ethernet

Engineered for Reliability

  • Auto-connecting, user-installable tape drives
  • Self-calibrating all-digital servo control system
  • Auto-aligning: No mechanical or electrical adjustments required
  • Auto-discovery of all components
  • Rated at 2,000,000 tape load/unload cycles
  • Automated tape drive cleaning


  • Field-expandable to 280 tape slots
  • ADI library interface
  • Fibre Channel and SAS drive interface support
  • Logical library partitioning supported

Comprehensive User Interface

  • RMI browser-based remote library manager
  • 4" monochrome display with button controls for easy local configuration, operation and maintenance
  • Extensive diagnostics and text-based error messages

Efficient Media Control

  • Integrated barcode scanner
  • I/O Port configurable to either none or five cartridges per module


  • Two-year warranty
  • Rackmount kit standard
Q40 Specifications Base Module Base + 6 Expansion Modules
Drive Types Supported LTO-6, LTO-7 or LTO-8
Drive Interfaces SAS or FC
Number of Tape Drives 1-3 Up to 21
Number of Cartridge Slots 40 280
I/O Port Slots 0 or 5 (configurable) 0 or 5 (configurable) per module
Native Capacity – LTO-6 / LTO-7 / LTO-8 100TB / 240TB / 480TB 700TB / 1.68PB / 3.36PB
Max Compressed (2.5:1) Capacity – LTO-6 / LTO-7 / LTO-8 250TB / 600TB / 1.20PB 1.75PB / 4.20PB / 8.40PB
Max Native Data Rate – LTO-6 / LTO-7 / LTO-8 1.73TB/hr. / 3.24TB/hr. / 3.24TB/hr. 14TB/hr. / 22.5TB/hr. / 22.5TB/hr.
Max Compressed Data Rate – LTO-6 / LTO-7 / LTO-8 4.3TB/hr. / 10.32TB/hr. / 10.32TB/hr. 30.2TB/hr. / 72.45TB/hr. / 72.45TB/hr.
Barcode Reader Standard
Rackmount Kit Standard
Maximum Number of Partitions* 20
Height 3U (5.25″ / 13.34cm) 21U (36.75″ / 93.35cm)
Width 18.98″ / 48.2cm
Depth 34.27″ / 87.3cm
Weight per Module without Tape Drives 55.34 lb / 25.1 kg
Input Voltage 100-240 VAC (50-60Hz)
Power Consumption 230W 1.61kW
Warranty 2 years
* Dependent on total number of tape drives