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The tape drive has the following features:

Capacity of 800 GB (native), 1600 GB (compressed*) on a single LTO Ultrium 4 tape

Built-in read-after-write verification for a high level of data integrity

Data transfer rate of 120 MB per second (native)

Burst data transfer rate of 300 MB per second

256 MB of read/write cache memory

Intelligent LTO-DC dual-mode compression algorithm

Failsafe leader capture mechanism with pin pick error recovery

Reads cartridge memory in LTO cartridges

TapeAlert support for improved diagnostic and troubleshooting

Internal drive: 3Gb Serial Attached SCSI interface

External drive: 3Gb Serial Attached SCSI interface

Speed matching (The drive can slow down to 45 MB per second minimum to match the system data rate.)

Sleep mode for energy conservation

Backward read and write compatibility with Generation 3 cartridges

Backward read compatibility with Generation 2 cartridges (does not read or write Generation 1 cartridges)

Compatible with all cartridges that bear the official Ultrium LTO logo

Will interchange tapes with other LTO tape drives that bear the official Ultrium LTO logo

Support for WORM (Write Once Read Many) using WORM media

Data encryption capability using LTO Ultrium 4 media**

* Assumes maximum compression. The capacity and transfer rate you realize in practice depends on the data set, which affects the actual compression ratio.

** Support for encryption on the LTO4-120 may be dependent on drive firmware level. Visit the Web at

supports encryption.

Tape Backup Software

You need backup software that supports the DELL PowerVault LTO4-120 tape drive. As a general rule, native backup applications (such as NTBackup and tar)

do not provide the required data streaming rate to get the full performance of your tape drive. We recommend using a backup application that provides better

memory management as well as other useful features, such as TapeAlert. For the latest supported software versions, go to

support site of your backup software vendor.

Front Panel

Figure 3. Front Panel

1. Single-character display (SCD)

2. Single red dot

3. Status light

4. Eject button

1. Single-character display. This LED presents a single-character code for diagnostic/maintenance functions, error conditions, and informational messages.

2. Single red dot. This single-character display is blank during normal operation. When a single red dot illuminates and flashes on the display, the drive has

created a dump of vital technical data to drive memory.

3. Status Light. The front panel of your Dell PowerVault LTO4-120 tape drive has a status light that provides information about the state of the tape drive. The

light can be green or amber, and (when lit) solid or flashing. See Table 1 for descriptions.

Table 1. Status Light Descriptions

Color and Condition of Status

LED

Off

Green/Solid

Green/Flashing (once

per second)

Condition of the SCD

Panel

Dot

Off

support.dell.com

to determine whether your firmware

Meaning of LED and SCD Panel and SCD Dot

The tape drive has no power or is

powered off.

The tape drive is powered on.

The tape drive is reading from the tape,

writing to the tape, rewinding the tape,

locating data on the tape, loading the

tape, or unloading the tape. If a solid

displays in the single-character display,

the drive is running a cleaning tape. The

status light also flashes green if the tape

drive contains a cartridge during the

power-on cycle. In this case, the drive

completes POST and slowly rewinds the

tape. (The process may take

approximately 13 minutes.) The light stops

support.dell.com

or visit the