Data Management and Storage Products

RLS-8500 Rack Mount Library



Offering superior performance and value, RLS-8500 Series libraries deliver capacities up to 1.37 petabytes (in LTO-8 native mode) in just 10U. Using typical data compression ratios, each library module can exceed 3.4 petabytes. Multi-module configurations can exceed 14.2 petabytes in a single rack.

  • RLS-8560 libraries contain 54 data cartridge storage slots and a dedicated four-slot I/O port
  • RLS-85120 models house 114 data cartridge slots with 1 four-slot I/O port; or 108 slots with 2 four-slot I/O ports
  • Both models house up to 7 LTO-6, LTO-7 or LTO-8 tape drives
RLS-8500 Rack

Expansion Ready

Two, three or four RLS-8500 Series modules can be interconnected easily and economically

  • Up to 474 tapes enabling over 14.2PB compressed data to be stored in just 40U
  • Up to 22 LTO-6, LTO-7 or LTO-8 SAS or Fibre Channel tape drives
  • FastPass™, Qualstar's simple, robust tape mover fits entirely within library
  • User-installable; self-calibrating
  • No additional power or cooling is needed
  • Optional second storage matrix adds 60 slots to RLS-8560

Encryption Enabled

Protect valuable data in transit

  • Simple, easy-to-use
  • Library-based encryption
  • User assigns keys
  • Separate key per partition

Q-Link™ Remote Manager

Q-Link enables any RLS tape library to be configured, monitored, diagnosed and managed from anywhere in the world

  • Web browser-based
  • Single-view local and remote management
  • Remote monitoring and troubleshooting

Reliable, Intelligent Robotics

The RLS-8500 Series unique robotic mechanism is Simply Reliable by design

  • Lead screw based robotics
  • Brushless DC motors and closed-loop servo control systems
  • All field-replaceable units, options and tape drives are auto-discovering
  • No electrical and mechanical adjustments
  • Drives are self-connecting, simply slide them in or out
  • All service access is through the front or rear of the unit without removing it from the rack

Easy Operation

RLS-8500 libraries are equipped with high resolution, color touch screens for local operation

  • Intuitive menu-driven user interface
  • Easy-to-use installation, configuration and operation
  • All functions and controls are replicated in the Q-Link browser-based remote manager

Advanced Cartridge Management And Security

  • Barcode scanning controls the media inventory
  • Dedicated four-slot I/O port in base module
  • Optional additional four-slot I/O port in RLS-85120
  • Additional I/O ports optional in expansion modules

Logical Library

Logical Library partitioning enables multiple servers to share a single library, up to one partition per drive.

Engineered for Reliability:

  • Auto-connecting, user-installable tape drives
  • All brushless motors
  • Self-calibrating all-digital servo control system
  • Auto-aligning: No mechanical or electrical adjustments
  • Auto-discovery of all components
  • Automated tape drive cleaning
  • Filtered, forced-air cooling


  • Field expandable to 4 modules using Qualstar's Fastpass tape mover technology
  • Built-in library-based encryption
  • ADI library interface
  • Dedicated 4-slot I/O port doesn't reduce capacity in base module
  • N+1 power option
  • Fibre Channel and SAS drive interface support
  • Logical Library partitioning
  • All access through front and back of unit

Comprehensive User Interface:

  • Q-Link browser-based remote library manager
  • Color LCD touch control panel and menu system for easy installation, configuration, operation and maintenance

Efficient Media Control:

  • Barcode scanner
  • Up to eight 4-slot I/O ports for media insertion and removal in maximum configuration
  • Key-lockable tape bays


  • Three year warranty
  • Simple, easy-to-use encryption
  • User field expansion up to 474 slots and 22 tape drives
  • Rack mount kit
Standalone RLS-8560 Standalone RLS-85120 With 3 expansion modules
Drive Types LTO-Ultrium 6, 7 or 8
Number of Tape Drives 1-7 half-height drives Up to 22
Number of Cartridge Slots 54 114 Up to 474
I/O Ports/Slots 1 port with 4 slots 1 or 2 ports with 4 slots each Up to 8 ports with 4 slots each
Max Native Capacity – LTO-6 135TB 285TB Over 1.2PB
Max Compressed (2.5:1) Capacity – LTO-6 338TB 713TB Over 3.0PB
Native Data Rate – LTO-6 Up to 4.0TB/hr. Up to 12.7TB/hr.
Compressed Data Rate – LTO-6 Up to 10.0TB/hr. Up to 31.7TB/hr.
Max Native Capacity – LTO-7 324TB 684TB 2.8PB
Max Compressed (2.5:1) Capacity – LTO-7 810TB 1.7PB 7.1PB
Native Data Rate – LTO-7 Up to 7.6TB/hr. Up to 23.8TB/hr.
Compressed Data Rate – LTO-7 Up to 19.0TB/hr. Up to 59.5TB/hr.
Max Native Capacity – LTO-8 648TB 1.37PB 5.69PB
Max Compressed (2.5:1) Capacity – LTO-8 1.62PB 3.42PB 14.23PB
Native Data Rate – LTO-8 Up to 7.6TB/hr. Up to 23.8TB/hr.
Compressed Data Rate – LTO-8 Up to 19.0TB/hr. Up to 59.5TB/hr.
Drive Interfaces SAS or FC
Library Interface ADI
Barcode Reader Standard
Time to scan all barcodes Less than 149 secs. Less than 149 secs.
Rack Mount Kit Standard
Height 10U (17.5″ / 44.5cm) 40U (70″ / 177.8cm)
Width 17.5″ / 44.5cm
Depth 35.8″ / 91cm
Fully Loaded Weight 180 lb / 82 kg 720 lb / 327 kg
Empty Weight - without tape matrixes or drives 54 lb / 24.6 kg N/A
Warranty 3 years