IBM System Storage TS3500, Введение и руководство по планированию

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Table 23. Performance specifications of the 3592 tape drives (continued)
Average rewind time
Not supported
29 seconds (100%
scaled JA)
35 seconds (100%
scaled JA)
Not supported
38 seconds (100% scaled JB)
47 seconds (100%
scaled JB)
Not supported
42 seconds (100%
scaled JC)
Not supported Not supported
Not supported
Not supported 11 seconds (20% scaled JA) Not supported
15 seconds (20% scaled JB) Not supported
17 seconds (20%
scaled JC)
Not supported Not supported
Not supported
Average block locate
time from load point
See Table 24
Notes:
1. All sustained data rates are dependent on the entire data path (from data source to host system to tape drive).
2. 40 seconds after encryption key change
Table 24. Average block locate time from load point for 3592 tape cartridge in 3592 tape drives
Type of 3592
Tape Cartridge
Average Block Locate Time from Load Point
1
Comments
2
TS1140 tape
drive
TS1130 tape drive TS1120 tape drive
3592 J1A Tape
Drive
JA cartridge type
- 100% scaled
Not supported 28 seconds 33 seconds 40 seconds
JA cartridge type
at full, unscaled
capacity (EFMT1
300 GB [279.39
GiB]; EFMT2 and
EEFMT2 500 GB
[465.66 GiB];
EFMT3 and
EEFMT3 640 GB
[596.04 GiB])
JA cartridge type
- 20% scaled
Not supported 11 seconds 12 seconds
JA cartridge type
at scaled capacity
with 0x35 setting
(EFMT1 format 60
GB [55.88 GiB];
EFMT2 and
EEFMT2 100 GB
[93.13 GiB];
EFMT3 and
EEFMT3 128 GB
[119.21 GiB])
JB cartridge type
- 100% scaled
37 seconds 45 seconds Not supported
JB cartridge type
at full, unscaled
capacity (EFMT2
and EEFMT2 700
GB [651.93 GiB];
EFMT3 and
EEFMT3 1 000 GB
[931.32 GiB];
EFMT4 and
EEFMT4 1 600 GB
[1 396.98 GiB])
Chapter 1. Introduction
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