Introduction Capacity and Transfer Rates

13
Capacity and Transfer RatesApplications
The DAT 72 and DDS-4 drives are ideal for workstation, server, and network/enterprise applica-
tions. These applications include, but are not limited to:
•Backup of high-capacity fixed discs
•Data interchange between systems
•Network servers
•Online data collection
•Near-line secondary storage for all types of text, graphics, or multimedia information
•Archival storage
Using This Guide
This User’s Guide describes how to install, configure, and care for the DDS-4 and DAT 72 external
and internal tape drives. Please read the appropriate chapters and appendixes carefully, and keep
this Guide handy for future reference.
•Chapter 2 provide quick-start instructions for getting the drives up and running in the shortest
possible time.
•Chapter 3 describes how to install internal DDS-4 and DAT 72 drives.
•Chapter 4 describes how to install the external tape drives.
•Chapter 5 describes how to operate the drives.
•Chapter 6 describes the front-panel LEDs on the drives.
•Chapter 7 provides troubleshooting procedures you can follow in the unlikely event you
encounter a problem with your drive.
•Appendix A describes how to upgrade firmware for your tape drive.
•Appendix B provides technical-support information.
TABLE 1 . DDS-4 and DAT 72 Capacity and Transfer Rates
Characteristic DDS-2* DDS-3 DDS-4 DDS 5th Generation**
Tape Length (meters) 120 125 150 170
Native Capacity (Gbytes) 412 20 36
Compressed Capacity (Gbytes) 824 40 72
Native Transfer Rate (Mbytes/sec) 1.375 2.75 2.75 3.5
* Applies to DDS-4 drives only
** Applies to DAT 72 drives only