Dell PowerVault LTO3-080 - Manual (Page 20)

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Introduction: Dell TM PowerVault TM Tape Drive User's Guide
Overview
Serial Attached SCSI (SAS) Interface
Encryption
Features
Tape Backup Software
Front Panel
Rear Panel
Overview
The Dell PowerVault tape drive is a high-performance, high-capacity tape storage device that is designed to back up and restore data and archive and retrieve
files in an Open Systems environment. The drive can be integrated into a system (internal model) or can be provided as a separately packaged desktop unit
(external model). There are five generations of the Dell PowerVault tape drives in the LTO series of products.
The Dell PowerVault tape drives offer a formatted cartridge capacity of up to 1500 GB (3000 GB assuming 2:1 compression ratio) and a maximum data transfer
rate of 140 MB per second.
Figure 1 shows the internal model of the tape drive. Figure 2 shows the separately purchased external model of the tape drive.
Figure 1. PowerVault Internal Model
Figure 2. PowerVault External Model
Figure 3. PowerVault Rack Mount Model
Serial Attached SCSI (SAS) Interface
A drive with a SAS (Serial Attached SCSI) interface can be linked directly to controllers.
The SAS interface offers the following advantages over the traditional SCSI interface:
l SAS enables multiple devices (up to 128) of different sizes and types to be connected simultaneously with thinner and longer cables.
l Its full-duplex signal transmission supports up to 6.0 Gb/s.
l SAS drives can be hot-plugged.