background image

(assumes 2:1 data 
compression) 

Burst transfer rate 

160 MB/s (with Ultra3 SCSI 
wide); 300 MB/s (with 3Gb/sec 
SAS) 

320 MB/s (with Ultra320 SCSI); 
300 MB/s (with 3Gb/sec SAS) 

300 MB/s (with 3Gb/sec SAS)  600 MB/s (with 6Gb/s SAS) 

Data rate matching 
range 

0-24 MB/s (native) 

20-60 MB/s (native) 

33-80 MB/s (native) 

47-140 MB/s (native) 

Data access time

 

(from BOT) 

64 s typical for a 200 GB tape 
(native) 

64 s typical for a 200 GB tape 
(native) 

64 s typical for a 800 GB tape 
(native) 

52 s typical for a 1.5 TB tape 
(native) 

Average load time 

>19 s 

>19 s 

>19 s 

>19 s 

Average unload time 

19 s 

19 s 

19 s 

19 s 

Rewind time from EOT  121 s (200 GB tape) 

121 s (400 GB tape) 

124 s (800 GB tape) 

96 s (1.5 TB tape) 

Rewind tape speed 

5.0 m/s 

5.0 m/s 

7.0 m/s 

9.0 m/s 

MTBF 

250,000 hours  
at 100% duty cycle 

250,000 hours  
at 100% duty cycle 

250,000 hours  
at 100% duty cycle 

250,000 hours  
at 100% duty cycle 

Reliability 

Uncorrected Error Rate  1 in 1x10 

17

 bits 

1 in 1x10 

17

 bits 

1 in 1x10 

17

 bits 

1 in 1x10 

17

 bits 

Media  
Compatibility 

  

LTO Ultrium 1 (Read and 
Write); 
LTO Ultrium 2  
(Read and Write) 

LTO Ultrium 1 (Read only); 
LTO Ultrium 2  
(Read and Write);  
LTO Ultrium 3  
(Read and Write) 

LTO Ultrium 2 (Read only); 
LTO Ultrium 3  
(Read and Write);  
LTO Ultrium 4  
(Read and Write) 

LTO Ultrium 3 (Read only); 
LTO Ultrium 4  
(Read and Write);  
LTO Ultrium 5  
(Read and Write) 

 

 

LTO-2 HH Ultrium 448 

LTO-3 HH Ultrium 920 

LTO-4 HH Ultrium 1760 

LTO-5 HH Ultrium 3000 

Recording method 

8-channel linear serpentine 

16-channel linear serpentine 

16-channel linear serpentine 

16-channel linear serpentine 

Recording format 

LTO Ultrium 2 
LTO Ultrium 1 (for 100 GB 
tape) 

LTO Ultrium 3 
LTO Ultrium 2 (for 200 GB 
tape) 

LTO Ultrium 4 
LTO Ultrium 3 (for 400 GB 
tape) 

LTO Ultrium 5 
LTO Ultrium 4 (for 800 GB 
tape) 

Data compression 

LTO DC dual mode 
compression (an enhanced 
version of ALDC) 

LTO DC dual mode 
compression (an enhanced 
version of ALDC) 

LTO DC dual mode 
compression (an enhanced 
version of ALDC) 

LTO DC dual mode 
compression (an enhanced 
version of ALDC) 

Error 
detection/correction 

Reed-Solomon 

Reed-Solomon 

Reed-Solomon 

Reed-Solomon 

Read channel 
technology 

Partial Response Maximum 
Likelihood (PRML) 

Partial Response Maximum 
Likelihood (PRML) 

Partial Response Maximum 
Likelihood (PRML) 

Partial Response Maximum 
Likelihood (PRML) 

Tape Format 

Data encoding method 

RLL 0,13/11 

RLL 0,13/11 

RLL 0,13/11 

RLL 32/33 

Interface type 

Wide Ultra3 SCSI (LVDS) or 
3Gb/sec SAS 

Ultra320 SCSI (LVDS) or 
3Gb/sec SAS 

Ultra320 SCSI (LVDS) or 
3Gb/sec SAS 

6Gb/sec Dual Port SAS 

Interface 

SCSI connector 

SCSI Internal: 68-pin LVDS 
SCSI External: 68-pin HD 
LVDS 

SCSI Internal: 68-pin LVDS 
SCSI External: 68-pin HD 
LVDS 

SCSI Internal: 68-pin LVDS 
SCSI External: 68-pin HD 
LVDS 

N/A 

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