Dell PowerVault 120T DDS4 User Guide - Page 48

Specifications - tape capacity

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Appendix B Specifications General Manufacturer Connection type SCSI compliance Manufactured for Dell Single Ended / Low Voltage Differential Ultra Wide SCSI Compatible with SCSI-2 medium changer command set ANSI X3T9.2/86-109 Performance Capacity: Without data compression DDS4 20.0 GB typical per tape (8 Tapes Maximum) With data compression DDS4 40.0 GB assuming 2:1 compression ratio Type of Compression Hardware, DCLZ, adaptive coding with embedded dictionary Data Transfer Rate 2.36 MB/sec (Native) to 4.72 MB/sec (2:1 Compression ratio) Burst Transfer Rate 14 MB/sec Asynchronous 40 MB/sec Synchronous Initialize Time less than 1 second Magazine Initialization Time Load Time Typical 90 seconds less than 24 seconds (for a single partition tape) Rewind Time less than 80 seconds with 150 meter tape Search Time less than 90 seconds for 150 meter tape Unload Time less than 20 seconds (for a single partition tape) Dell PowerVault 120T DDS4 Autoloader User's Guide B-1

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Dell PowerVault 120T DDS4 Autoloader User's Guide B-1
Appendix B
Specifications
General
Manufacturer
Manufactured for Dell
Connection type
Single Ended / Low Voltage Differential Ultra Wide SCSI
SCSI compliance
Compatible with SCSI-2 medium changer command set
ANSI X3T9.2/86-109
Performance
Capacity:
Without data compression
DDS4
20.0 GB typical per tape (8 Tapes Maximum)
With data compression
DDS4
40.0 GB assuming 2:1 compression ratio
Type of Compression
Hardware, DCLZ, adaptive coding with embedded dictionary
Data Transfer Rate
2.36 MB/sec (Native) to
4.72 MB/sec (2:1 Compression ratio)
Burst Transfer Rate
14 MB/sec Asynchronous
40 MB/sec Synchronous
Initialize Time
less than 1 second
Magazine Initialization
Time
Typical 90 seconds
Load Time
less than 24 seconds (for a single partition tape)
Rewind Time
less than 80 seconds with 150 meter tape
Search Time
less than 90 seconds for 150 meter tape
Unload Time
less than 20 seconds (for a single partition tape)