Spectra Stack Specs

As the challenge of exponential data growth continues, modern storage architectures demand flexibility in placing storage where it’s needed, when it’s needed – regardless of the environment. Spectra Logic has responded to the challenge with Spectra Stack – a new stackable library design. Built with flexibility at its core, the Spectra Stack library will provide the storage you need today, with the ability to expand through a simple, modular architecture.

Designed to be easy to use and manage, it will perform in the most demanding environments. The Spectra Stack tape library was built for 24/7 duty cycle data centers. Scalable from 10 to 560 slots, Spectra Stack stores over 10PB (25PB compressed*) of data using LTO-9 media and is equipped with the ability to use up to 42 LTO drives in an easily expandable, stackable tape library. Each module is a standard 6U form factor and can be expanded in minutes by adding an expansion module providing up to 80 additional slots and up to 6 additional drives.

Front/back images

Stackable Library compatible with LTO Media

 

Capacity Chart

No. of Modules Form Factor Maximum Slots Maximum Capacity
LTO-6 LTO-7 LTO-7 Type M LTO-8 LTO-9
Native Compressed*** Native Compressed*** Native Compressed*** Native Compressed*** Native Compressed***
1 (1 CM*) 6U 80 200 TB 500 TB 480 TB 1.2 PB 720 TB 1.8 PB 960 TB 2.4 PB 1.4 PB 3.6 PB
2 (1 CM, 1 EM**) 12U 160 400 TB 1.0 PB 960 TB 2.4 PB 1.4 PB 3.6 PB 1.9 PB 4.8 PB 2.88 PB 7.2 PB
3 (1 CM, 2 EM) 18U 240 600 TB 1.5 PB 1.4 PB 3.6 PB 2.1 PB 5.4 PB 2.8 PB 7.2 PB 4.38 PB 10.2 PB
4 (1 CM, 3 EM) 24U 320 800 TB 2.0 PB 1.9 PB 4.8 PB 2.8 PB 7.2 PB 3.8 PB 9.6 PB 5.76 PB 14.4 PB
5 (1 CM, 4 EM) 30U 400 1.0 PB 2.5 PB 2.4 PB 6.0 PB 3.6 PB 9.0 PB 4.8 PB 12.0 PB 7.2 PB 18 PB
6 (1 CM, 5 EM) 36U 480 1.2 PB 3.0 PB 2.8 PB 7.2 PB 4.3 PB 10.8 PB 5.7 PB 14.4 PB 8.64 PB 21.6 PB
7 (1 CM, 6 EM) 42U 560 1.4 PB 3.5 PB 3.3 PB 8.4 PB 5.0 PB 12.6 PB 6.7 PB 16.8 PB 10.08 PB 25.2 PB

Performance Chart

No. of Modules Form Factor Maximum Drives Maximum Performance – TB/Hr
LTO-6 LTO-7 LTO-8 LTO-9
Full Height Half Height Full Height Half Height Full Height Half Height Full Height Half Height
Native Compressed**** Native Compressed**** Native Compressed**** Native Compressed**** Native Compressed**** Native Compressed**** Native Compressed**** Native Compressed****
1 (1 CM*) 6U 6 HH, 3 FH 1.73 4.32 3.46 8.64 3.24 8.10 6.48 15.12 3.89 8.10 6.48 15.12 4.32 PB 9.72 PB 6.48 15.12
2 (1 CM, 1 EM**) 12U 12HH, 6FH 3.46 8.64 6.91 17.28 6.48 16.20 12.96 30.24 7.78 16.20 12.96 30.24 8.64 PB 19.44 PB 12.96 30.24
3 (1 CM, 2 EM) 18U 18 HH, 9 FH 5.18 12.96 10.37 25.92 9.72 24.30 19.44 45.36 11.66 24.30 19.44 45.36 12.96 PB 29.16 PB 19.44 45.36
4 (1 CM, 3 EM) 24U 24 HH, 12 FH 6.91 17.28 13.82 34.56 12.96 32.40 25.92 60.48 15.55 32.40 25.92 60.48 17.28 PB 38.88 PB 25.92 60.48
5 (1 CM, 4 EM) 30U 30 HH, 15 FH 8.64 21.60 17.28 43.2 16.20 40.50 32.40 75.60 19.44 40.50 32.40 75.6 21.60 PB 48.60 PB 32.40 75.60
6 (1 CM, 5 EM) 36U 36 HH, 18 FH 10.37 25.92 20.74 51.84 19.44 48.60 38.88 90.72 23.33 48.60 38.88 90.72 25.92 PB 58.32 PB 38.88 90.72
7 (1 CM, 6 EM) 42U 42 HH, 21 FH 12.10 30.24 24.19 60.48 22.68 56.70 45.36 105.84 27.22 56.70 45.36 105.84 34.24 PB 68.04 PB 45.36 105.94

* Controller Module
** Expansion Module
*** Assumes 2.5:1 Compression

Media Capacity
Media Types Native Compressed
LTO-6 2.5 TB 6.25 TB
LTO-7 6 TB 15 TB
LTO-7 Type M 9 TB 22.5 TB
LTO-8 12 TB 30 TB
LTO-9 18 TB 45 TB
Drive Performance
HH Native HH Compressed FH Native FH Compressed
LTO-6 160 MB/Sec 400 MB/Sec 160 MB/Sec 400 MB/Sec
LTO-7 300 MB/Sec 700 MB/Sec 300 MB/Sec 750 MB/Sec
LTO-8 300 MB/Sec 700 MB/Sec 360 MB/Sec 750 MB/Sec
LTO-9 360 MB/Sec 750 MB/Sec 400 MB/Sec 900 MB/Sec
Operating Environment
LTO Drives and Media
Temperature 15’ to 25’C (59’ to 77’F)
15’ to 35’C (59’ to 95’F) 		Recommended
Allowable
Relative Humidity 20% to 50% non-condensing
20% to 80% non-condensing		 Recommended
Allowable
Humidity 22’C dew point max
Reliability
Library MCBF 3 million
Library MTTR 10 minutes
Power Requirements 100-240v AC, 50/60Hz
80 PLUS certified power supplies
LTO Drive Connectivity:
Half-height drives support Fibre and SAS
Full-height drives support Fibre (also SAS for LTO-9)
Library
Max Media/Slot Count (7-Modules) Max SLS Partition Tape Technology Supported
560 Slots 20 LTO-5, 6, 7, 7 Type M, 8, 9
Library Dimensions
Controller Module Expansion Module
Height 10.55 in (268 mm) 10.55 in (268 mm)
Width 18.7 in (475 mm) 18.7 in (475 mm)
Depth 35.12 in (892 mm) 35.12 in (892 mm)
Weight 78.26 lb (35.5 kg) 68.34 lb (31 kg)
Library Features
Encryption supported
Media Lifecycle Management Yes
Auto Clean Support Yes
Camera (Spectra Vison) Yes

Specifications subject to change without notice

Want to learn more about LTO-9 Tape Technology Benefits?

Want to migrate an existing library to a new library?

Resources

resources for exponential data growth

< Back to Spectra Stack page

"When we set out on our search to find a storage solution capable of preserving Imperial War Museums’ substantial digital archive, there were specific criteria on which we were not willing to compromise. Spectra met all of our requirements and then some, and now continues to deliver with StorCycle’s storage lifecycle management capabilities."

– Ian Crawford, Chief Information Officer, Imperial War Museums

"We appreciate the collaborative relationship and Spectra’s attentiveness to incorporating our feedback and ideas into solution enhancements. Our continuing investment into Spectra technology on behalf of our organization has proven invaluable in helping us implement the next level architectural model taking us into the future."

– Eric Grau, Manager – Media Asset Management, Joyce Meyer Ministries

"The new library has just shy of 14,000 slots for tapes. We were able to easily move all 70 petabytes of existing data into the new system and have grown to 104 petabytes in size and have plenty of room for at least a year or two before we have to start thinking about expanding."

– HPC Linux Systems Engineer, OLCF

"We have to store a lot of data for long periods of time. A single microscope can capture 10TB of data in as little as a few hours, and a published breakthrough on cancer research can take anywhere from a few years to a couple of decades. The BlackPearl and tape solution from Spectra provides a scalable and cost-effective way to store multiple data workflows with varying retention requirements."

– Jeffrey McDonald, director of IT, Hormel Institute at University of Minnesota

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