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Product Manual - Hawk 1 Family SCSI-2 (Volume 1), Rev. D
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ST11200
ST1980
ST1950
ST1830
Min.
[4]*
2.90
3.05
TBD
TBD
MByte/sec
Avg.
[4]
4.14
4.21
Max.
[4]
5.07
5.07
Data Buffer To/From Disc Media
Data Transfer Rate (< 1 Track) - 512 Byte Sector
ST11200
Min. [4] 2.50 MByte/sec divided by (Interleave Factor)
Avg. [4] 3.55 MByte/sec divided by (Interleave Factor)
Max. [4] 4.36 Mbyte/sec divided by (Interleave Factor)
ST1980
Min. [4] 2.62 MByte/sec divided by (Interleave Factor)
Avg. [4] 3.61 MByte/sec divided by (Interleave Factor)
Max. [4] 4.36 MByte/sec divided by (Interleave Factor)
ST1950
Min. [4] TBD MByte/sec divided by (Interleave Factor)
Avg. [4] TBD MByte/sec divided by (Interleave Factor)
Max. [4] TBD Mbyte/sec divided by (Interleave Factor)
ST1830
Min. [4] TBD MByte/sec divided by (Interleave Factor)
Avg. [4] TBD MByte/sec divided by (Interleave Factor)
Max. [4] TBD MByte/sec divided by (Interleave Factor)
SCSI Interface Data
Transfer Rate (Asynchronous) [5]
ST11200
ST1980
ST1950
ST1830
-Maximum Instantaneous
5.0**
5.0
TBD
TBD
MBytes/sec**
-Maximum Average
3.1
3.1
TBD
TBD
MBytes/sec
Sector Sizes
512 user data blocks (default)
Variable (256 to 4096) in even sector sizes
If sector size (n, bytes) is odd it will be rounded down to n-1.
Synchronous Transfer Rate
From 1.25 MByte/sec to 10.0 MBytes/sec (See section 11.5.)
Read/Write consecutive sectors on a track
Yes
Flaw reallocation performance impact (For flaws reallocated using the
1 sector time (typical)
spare sectors per track or cylinder reallocation scheme.)
Flaw reallocation performance impact (For flaws reallocated using the spare
35 ms (typical)
tracks per volume reallocation scheme.)
Track skew incorporated at format time
1.7 ms
Cylinder skew incorporated at format time
3.0 ms
Overhead time for one track cylinder switch
<3 ms Typical
Average rotational latency
5.54 ms
* [ ] All notes are listed in Section 5.3.1.
** Assumes system ability to support 5.0 Mb/s and no cable loss.
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