Seagate ST32151N - Format Command Execution Time (Minutes) [1]; Generalized Performance Characteristics

10 Hawk 2XL Product Manual, Rev. B
4.2.2 Format command execution time (minutes) [1]
4.2.3 Generalized performance characteristics
Data Transfer Rate (1 sector) - 512 Byte Sector, Data Buffer To/From Disc Media:
Data Transfer Rate (< 1 Track) - 512 Byte Sector, Data Buffer To/From Disc Media:
SCSI Interface Data Transfer Rate (Asynchronous) [5] (all Hawk 2XL models):
The remainder of the specifications of Section 4.2.3 apply to all Hawk 2XL models:
Synchronous Transfer Rate for ULTRA SCSI-2 models from 1.25 MBytes/sec to 20.0 MBytes/sec for 8 bit data
bus and 40.0 MBytes/sec for 16 bit data bus. (see Section 9.5)
Synchronous Transfer Rate for Fast SCSI-2 models from 1.25 MBytes/sec to 10.0 MBytes/sec for 8 bit data
bus and 20.0 MBytes/sec for 16 bi6t data bus. (see Section 9.5)
ST32151/ST32155 ST31051/ST31055
Maximum (with verify) 30 20
Maximum (no verify) 20 10
Minimum Sector Interleave (all Hawk 2XL models) 1 to 1
ST32151/ST32155 ST31051/ST31055
Min. [4]* 5.1 MByte/sec 5.1 MByte/sec
Avg. [4] 7.1 MByte/sec 7.1 MByte/sec
Max. [4] 8.2 MByte/sec 8.2 MByte/sec
ST32151/ST32155 ST31051/ST31055
Min. [4] 3.8 MByte/secs 3.8 MByte/sec divided by (Interleave Factor)
Avg. [4] 5.6 MByte/secs 5.6 MByte/sec divided by (Interleave Factor)
Max. [4] 6.4 MByte/secs 6.4 MByte/sec divided by (Interleave Factor)
Maximum Instantaneous 6.0 [6] MBytes/sec
Maximum Average 6.0 MBytes/sec
Sector Sizes Variable (180 to 4096 bytes per sector, but factory configurable only
) in even
number of bytes per sector.
Read/Write consecutive sectors on a track Yes
Flaw reallocation performance impact (For flaws reallocated at format time using
the spare sectors per cylinder reallocation scheme.) [7]
Negligible
Flaw reallocation performance impact (For flaws reallocated at format time using
the spare tracks per volume reallocation scheme.)[7]
22.16 msec (typical)
Overhead time for head switch (512 byte sectors) 1 msec
Overhead time for one track cylinder switch <3 msec Typical
Average rotational latency 5.54 msec
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