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

10
4.2.2

Format command execution time (minutes) [1]

Maximum (with verify)
Maximum (no verify)
4.2.3

Generalized performance characteristics

Minimum Sector Interleave (all Hawk 2XL models)
Data Transfer Rate (1 sector) - 512 Byte Sector, Data Buffer To/From Disc Media:
ST32151/ST32155
Min. [4]* 5.1 MByte/sec
Avg. [4] 7.1 MByte/sec
Max. [4] 8.2 MByte/sec
Data Transfer Rate (< 1 Track) - 512 Byte Sector, Data Buffer To/From Disc Media:
ST32151/ST32155
Min. [4] 3.8 MByte/secs
Avg. [4] 5.6 MByte/secs
Max. [4] 6.4 MByte/secs
SCSI Interface Data Transfer Rate (Asynchronous) [5] (all Hawk 2XL models):
Maximum Instantaneous 6.0 [6]
Maximum Average
The remainder of the specifications of Section 4.2.3 apply to all Hawk 2XL models:
Sector Sizes
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)
Read/Write consecutive sectors on a track
Flaw reallocation performance impact (For flaws reallocated at format time using
the spare sectors per cylinder reallocation scheme.) [7]
Flaw reallocation performance impact (For flaws reallocated at format time using
the spare tracks per volume reallocation scheme.)[7]
Overhead time for head switch (512 byte sectors)
Overhead time for one track cylinder switch
Average rotational latency
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ST32151/ST32155
30
20
ST31051/ST31055
5.1 MByte/sec
7.1 MByte/sec
8.2 MByte/sec
ST31051/ST31055
3.8 MByte/sec
5.6 MByte/sec
6.4 MByte/sec
MBytes/sec
6.0 MBytes/sec
Variable (180 to 4096 bytes per sector, but factory configurable only) in even
number of bytes per sector.
Hawk 2XL Product Manual, Rev. B
ST31051/ST31055
20
10
1 to 1
divided by (Interleave Factor)
divided by (Interleave Factor)
divided by (Interleave Factor)
Yes
Negligible
22.16 msec (typical)
1 msec
<3 msec Typical
5.54 msec