Table 24. Performance specifications of the 3592 tape drive
Performance parameter
TS1155 tape drive
TS1150 tape drive
TS1140 tape drive
Sustained data rate (native)
1
360 MB/s (55F format
3
)
360 MB/s (E08 format)
250 MB/s (E07 format)
360 MB/s (E08 format)
250 MB/s (E07 format)
250 MB/s (E07 format)
Compressed sustained data
rate (at maximum
compression)
750 MB/s (55F format
3
)
750 MB/s (E08 format)
750 MB/s (E08 format)
650 MB/s (E07 format)
650 MB/s (E07 format)
Burst data rate for Fibre
Channel devices
800 MB/s
800 MB/s
800 MB/s
Load-to-ready time
12 seconds
12 seconds
15 seconds
Unload time
22 seconds
2
22 seconds
2
36 seconds
2
Notes:
1.
All sustained data rates are dependent on the entire data path (from data source to host system to tape drive).
By using the built-in data-compression capability of the tape drives, you can achieve greater data rates than the
native data transfer rate. However, the actual throughput is a function of many components, such as the host
system processor, disk data rate, block size, data compression ratio, interconnect, and system or application
software.
2.
40 seconds after encryption key change.
3.
The 55F format is the native format for both the 3592 Model 55F and 3592 Model 55E.
Table 25. Rewind times for the 3592 tape drive
Cartridge type Rewind time
Capacity setting
TS1155 tape
drive
TS1150 tape
drive
TS1140 tape
drive
JB
Maximum
Full, unscaled capacity (100%)
N/A
N/A
72 seconds
Scaled capacity with 0x35
setting (20%)
N/A
N/A
24 seconds
Average
Full, unscaled capacity (100%)
N/A
N/A
38 seconds
Scaled capacity with 0x35
setting (20%)
N/A
N/A
15 seconds
JC
Maximum
Full, unscaled capacity (100%)
76 seconds
76 seconds
76 seconds
Scaled capacity with 0x35
setting (20%)
26 seconds
26 seconds
26 seconds
Average
Full, unscaled capacity (100%)
42 seconds
42 seconds
42 seconds
Scaled capacity with 0x35
setting (20%)
17 seconds
17 seconds
17 seconds
JD
Maximum
Full, unscaled capacity (100%)
94 seconds
94 seconds
N/A
Scaled capacity with 0x35
setting (20%)
34 seconds
34 seconds
N/A
Average
Full, unscaled capacity (100%)
50 seconds
50 seconds
N/A
Scaled capacity with 0x35
setting (20%)
20
20
N/A
JK
Maximum
Advanced Type C economy -
short length
18 seconds
18 seconds
18 seconds
Average
Advanced Type C economy -
short length
11 seconds
11 seconds
11 seconds
66
IBM TS4500: Introduction and Planning Guide
Summary of Contents for TS4500
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