5157/5157ACL S-Series Digital Linear Tape Subsystems Installation/User's Guide
5157/5157 ACL S-Series DLT Subsystems Installation/Users Guide  
Overview and Features of the 5157/5157 ACL S-series Subsystem  
1-4
Compression can be selected on the drive front panel or 
from the host by using the SCSI MODE SELECT 
command. 
The DLT 5157/5157 ACL tape drives also accept the 
DLTtape IIIxt cartridge. When this cartridge is used the 
amount of data stored on the tape can be up to 15.0 GB 
non-compressed or 30.0 GB compressed. The actual 
amount of data stored in the compression mode is 
dependent on the data type. Compression can be selected on 
the drive front panel or from the host by using the SCSI 
MODE SELECT command. 
The DLT tape drives also accept the DLTtape III 
cartridge. When this cartridge is used, the amount of data 
stored on the tape can be up to 10.0 GB non-compressed or 
20.0 GB compressed. The actual amount of data stored in 
the compression mode is dependent on the data type. 
Compression can be selected on the drive front panel or 
from the host by using the SCSI MODE SELECT 
command. 
1.6  Compaction 
The compaction feature of the DLT 5157/5157 ACL tape 
drives helps to store data efficiently. A read/write data 
cache of up to 8.0 MB allows working space for the 
compaction, enabling maximum use of available tape space. 
1.7  Strong Media 
The tape media can endure 500,000 passes and a shelf life 
of 30 years, which provides superior media durability and 
data reliability. 










