Highlights of one of MDL's Mid-Range SDLT Tape Libraries

• From 1 to 8 SDLT Drives
• 20 to 80 Cartridge Positions
• Up to 25 TB Capacity
• Up to 115 GB/hour per Drive Transfer Rate
• SCSI HVD, SCSI LVD or Fibrechannel options

Mid-Range SDLT Tape Library Product Description

MDL Corporation mid-range tape libraries make SDLT technology’s fast file access, high performance, and high capacity available for automated server backup and near-line data storage. With current technology, they provide up to 12.8 TB of storage (uncompressed) and up to 115 GB/hour per-drive sustained throughput. Rated for more than 1 million cartridge changes, these libraries are designed to provide trouble-free automated storage over years of heavy service. Multiple drives mean higher performance, redundancy, and allow scalability. Drives can be added in the field in less than 15 minutes to increase performance or to upgrade to newer technology. This product is available in either a desk side or rack mount configuration.

Features and Benefits

• Robotics rated for >1 million cartridge changes means years of trouble-free operation, even at high duty cycles

• Field upgradeable drives provide easy scalability and high levels of investment protection

• Integrated barcode reader provides instant media verification and inventory

• Interchangeable 5-slot cartridge access port with removable magazine make it easy to add, remove, transport, and store media

• Tower or 19-inch rack mount configuration—both models fit easily into standard data center environments

• <82-second average file access provides the rapid data access needed for near-line storage or active archive applications

• One year of on-site service available for the highest levels of protection

• Mixed media (SDLT-1, DLT-IV and LTO) support in a single library

• Mixed drive (SDLT, LTO) support in a single library

• Automatic self discovery

• Continuous automatic self calibration

Notes:

Capacity and transfer rates assume 2:1 data compression, unless otherwise stated.

Technical Specifications

Library Configurations

Tape Capacity:	L80-80
Drives1:	1 to 8
Library Data Capacity2:
Native:	12.8 TB
With 2:1 Compression:	25 TB
Barcode Reader:	Standard

Drive and Performance

Drive Type:	SDLT-320
Data Cartridge Capacity2:
Native:	160 GB
With 2:1 Compression:	320 GB
Transfer Rate per Drive3
Native:	16 MB/sec
With 2:1 Compression:	32 MB/sec
SCSI Interface:	Ultra 2 SCSI LVD, Fast/Wide HVD
File Access Time (Avg):	<82 seconds
Data Compression:	DLZ
Media:	DLT-IV read compatible, SDLT1
Tape Length:	1833 feet
Recording Density:	193,000 bits/in.

Operation

Cartridge Change:	< 8 seconds
Indicators:	Keypad located at top with LCD display and push-button switches.
Drive:	Status LED and Eject Buttons
Interface:	High density 68 pin SCSI LVD or HVD, Fibrechannel option

Reliability

Hard Error Rate:	Less than 1 in 1017 bits read
Tape Shelf Life:	30 years minimum (at 20 °C, 40% RH)
Maintenance:	Cleaning not required unless indicated by drive LEDs
MCBF:	Greater than 2,000,000 cartridge changes
Drive MTBF:	Greater than 250,000 hours at 100% duty cycle
MTTR:	Less than 30 minutes
Diagnostics:	A complete diagnostic and self-test capability is provided
Error Correction Code:	Read after write

Physical

Dimensions:
Tower:	19"W x 29"D x 31.5"H
Rack	18U
Unit Weight:
Tower:	140 lbs
Rack:	140 lbs
Drive:	5.25 lbs

Environmental

Electrical:	100-240 VAC, 50-60 Hz, 0.18KVA operating (library) 58 VA (per drive)
Altitude:	10,000 ft (3078m)
Temperature:	10 to 40 °C Operating
Humidity:	20 to 80% Non-Condensing Operating

Compliance and Certification

Safety:	UL, TUV, CSA
Emissions:	VDE, IEC, FCC, CISPIC

Notes:

1	Units ship with minimum drive count shown. Expansion drives also available.
2	All capacity specifications assume SDLT-1 media.
3	Assumes maximum drive count and a maximum of 2 drives per SCSI channel.

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