Table 1. Performance specifications of the Ultrium tape drives
Performance
Parameter
Tape Drive
Ultrium 5
Ultrium 4
Ultrium 3
Ultrium 2
Ultrium 1
(native)
1
(with L5
media)
(with L4
media)
120 MB/s
(with L4
media)
80 MB/s
(with L3
media)
80 MB/s
(with L3
media)
N/A
N/A
80 MB/s
(with L3
media)
2
35 MB/s
(with L2
media)
35 MB/s
(with L2
media)
35 MB/s
(with L2
media)
N/A
N/A
N/A
20 MB/s
(with L1
media)
20 MB/s
(with L1
media)
15 MB/s
(with L1
media)
Sustained data rate
(compressed at 2:1
compression)
280 MB/s
(with L5
media)
240 MB/s
(with L4
media)
N/A
N/A
N/A
240 MB/s
(with L4
media)
160 MB/s
(with L3
media)
160 MB/s
(with L3
media)
N/A
N/A
160 MB/s
(with L3
media)
2
70 MB/s
(with L2
media)
70 MB/s
(with L2
media)
70 MB/s
(with L2
media)
N/A
N/A
N/A
40 MB/s
(with L1
media)
40 MB/s
(with L1
media)
30 MB/s
(with L1
media)
Maximum sustained data
rate (at maximum
compression)
745 MB/s
340 MB/s
(read)
350 MB/s
(write)
175 MB/s
110 MB/s
60 MB/s
Burst data rate for Fibre
Channel drives
800 MB/s
400 MB/s
400 MB/s
200 MB/s
100 MB/s
Burst data rate for Low
Voltage Differential (LVD)
SCSI drives
N/A
N/A
N/A
160 MB/s
(Ultra160)
80 MB/s
(Ultra2)
Burst data rate for High
Voltage Differential (HVD)
SCSI drives
N/A
N/A
N/A
40 MB/s
(Ultra)
40 MB/s
(Ultra)
Time to load, thread, and
initialize a cartridge
12 seconds
15 seconds
20 seconds
Time to unload cartridge
from load point
17 seconds
15 seconds
18 seconds
Average search time to
first byte of data (load
60 seconds 57 seconds
49 seconds
73 seconds
