Dell PowerVault 100T DAT72 User's Guide - Page 11

Specifications and Features, Specifications, Features - compression

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Specifications and Features Specifications Table 1-1. LTO Generation Specifications Specification LTO6 Native Capacity 2500 GB 2.5:1 Compressed Capacity 6250 GB 2:1 Compressed 5000 GB Capacity Maximum Native Data Transfer 160 MB/s Compressed Maximum Data Transfer* 400 MB/s Media X Partitioning** Data Safe X Mode** Encryption X Status LED PowerVault Generation LTO5-140 LTO4-120 1500 GB 800 GB NA NA 3000 GB 140 MB/s 1600 GB 120 MB/s 280 MB/s 240 MB/s X NA X NA X NA LTO3-80 400 GB NA 800 GB 80 MB/s 160 MB/s NA NA NA * Assumes compression. The capacity and transfer rate you realize in practice depends on the data set, which affects the actual compression ratio. LTO6 supports 2.5:1 compression. LTO5-140 and below support 2:1 compression. ** This feature must be supported by your tape backup software. Features The tape drive has the following features: v Built-in read-after-write verification for a high level of data integrity v Burst data transfer rate of 600 MB per second v 512 MB of read/write cache memory v Intelligent LTO-DC dual-mode compression algorithm v Failsafe leader capture mechanism with pin pick error recovery v Reads cartridge memory in LTO cartridges v TapeAlert support for improved diagnostic and troubleshooting v Two 6 Gb Serial Attached SCSI interface v Speed matching (The drive can slow down to match the system data rate.) v Sleep mode for energy conservation v Backward read and write compatibility dependent on generation v Compatible with all cartridges dependent on generation that bears the official Ultrium LTO logo. See Table 1-1 for more information. Chapter 1. Introduction 1-3

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Specifications and Features
Specifications
Table 1-1. LTO Generation Specifications
PowerVault Generation
Specification
LTO6
LTO5-140
LTO4-120
LTO3-80
Native Capacity
2500 GB
1500 GB
800 GB
400 GB
2.5:1
Compressed
Capacity
6250 GB
NA
NA
NA
2:1 Compressed
Capacity
5000 GB
3000 GB
1600 GB
800 GB
Maximum
Native Data
Transfer
160 MB/s
140 MB/s
120 MB/s
80 MB/s
Compressed
Maximum Data
Transfer*
400 MB/s
280 MB/s
240 MB/s
160 MB/s
Media
Partitioning**
X
X
NA
NA
Data Safe
Mode**
X
X
NA
NA
Encryption
Status LED
X
X
NA
NA
* Assumes compression. The capacity and transfer rate you realize in practice
depends on the data set, which affects the actual compression ratio. LTO6 supports
2.5:1 compression. LTO5-140 and below support 2:1 compression.
** This feature must be supported by your tape backup software.
Features
The tape drive has the following features:
v
Built-in read-after-write verification for a high level of data integrity
v
Burst data transfer rate of 600 MB per second
v
512 MB of read/write cache memory
v
Intelligent LTO-DC dual-mode compression algorithm
v
Failsafe leader capture mechanism with pin pick error recovery
v
Reads cartridge memory in LTO cartridges
v
TapeAlert support for improved diagnostic and troubleshooting
v
Two 6 Gb Serial Attached SCSI interface
v
Speed matching (The drive can slow down to match the system data rate.)
v
Sleep mode for energy conservation
v
Backward read and write compatibility dependent on generation
v
Compatible with all cartridges dependent on generation that bears the official
Ultrium LTO logo. See Table 1-1 for more information.
Chapter 1. Introduction
1-3