Performance Characteristics; Internal Drive Characteristics (Transparent To User); Scsi Drive Seek, Read And Write Performance Characteristics (Visible To User); Seek Command Execution Time - Seagate ST11200N Product Manual

Product Manual - Hawk 1 Family SCSI-2 (Volume 1), Rev. D
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5.0

Performance characteristics

5.1

Internal drive characteristics (transparent to user)

Drive Capacity
Read/Write Heads
Bytes/Track
Bytes/Surface
Tracks/Surface, Total
Tracks/Inch
Servo Heads
Internal Data Rate
Disc Rotational Speed
Average Rotational Latency
5.2 SCSI Seek, Read and Write performance characteristics [8]*
Refer to Section 11.7 and to the SCSI-2 Interface Product Manual 77738479 for additional timing details.
5.2.1 Seek time
Average - Typical [3]
Max.
Single Track- Typical [3]
Max.
Full Stroke - Typical [3]
Max.
Average - Typical [3]
Max.
Single Track - Typical [3]
Max.
Full Stroke - Typical [3]
Max.
ST11200
1248
15
41660
83
1872
2150
1
23.2-40.6
5411 +0.5%
5.54
Drive Level
ST11200
Read Write
ms
10.5 11.2
[2] 12.0 13.0
1.5 2.0
[2] 3.5 4.0
20.0 21.0
[2] 23.5 24.5
Including Controller Overhead** [1][4]
ST11200
Read Write
ms
11.7 12.5
[2] 14.0 15.0
2.6 3.3
[2] 5.5 5.9
21.2 22.4
[2] 25.7 27.1
ST1980 ST1950
1021 953
13 13
45434 46550
78.5 73
1730 1575
2150 2150
1 1
24.4 - 40.6 25.2-41.2
5411 +0.5% 4535 +0..5%
5.54 6.61
ST1980 ST1950
Read Write Read
ms ms
9.9 10.6 TBD
11.4 12.4 TBD
1.5 2.0 TBD
3.5 4.0 TBD
19.0 20.0 TBD
22.5 23.5 TBD
ST1980 ST1950
Read Write Read
ms ms
11.1 11.9 TBD
13.4 14.4 TBD
2.6 3.3 TBD
5.5 5.9 TBD
20.2 21.4 TBD
24.7 26.1 TBD
ST1830
834 MByte (UNF)
13 Data (Max)
48419 Bytes (Avg)
64 Mbytes (UNF)
1325 Tracks (user
accessible)
2150 TPI
1
28.4-41.2Mbits/sec
(variable with
zone)
4535 +0.5% r/min
6.61 ms
ST1830
Write Read Write
ms
TBD TBD TBD
TBD TBD TBD
TBD TBD TBD
TBD TBD TBD
TBD TBD TBD
TBD TBD TBD
ST1830
Write Read Write
ms
TBD TBD TBD
TBD TBD TBD
TBD TBD TBD
TBD TBD TBD
TBD TBD TBD
TBD TBD TBD
9