Seagate ST15150DC, Product Manual

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14 ST15150N/ND/W/WD/WC/DC Product Manual, Rev. D
5.3 General performance characteristics
Minimum sector interleave 1 to 1
Data buffer to/from disc media 512-byte sector
Data transfer rate (
≤
1 sector)
Minimum 5.30 Mbytes/sec*
Maximum 8.94 Mbytes/sec*
Data transfer rate (< 1 track)
Minimum, divided by interleave factor 3.56 Mbytes/sec
Maximum, divided by interleave factor 7.65 Mbytes/sec
Sector sizes
Default 512-byte data blocks
Variable in even-sector sizes 180 to 4,096 bytes
SCSI interface data
Async. transfer rate, max instantaneous
ST15150N/ND
5.0 Mbytes/sec*, **
ST15150W/WD/WC/DC 10.0 Mbytes/sec*, ***
Synchronous transfer rate fast
ST15150N/ND
0.5 to 10.0 Mbytes/sec
Synchronous transfer rate wide
ST15150W/WD/WC/DC
0.5 to 20.0 Mbytes/sec
Read/write consecutive sectors on a track Yes
Flaw reallocation performance impact Negligible
(for flaws reallocated using the spare
sectors per track reallocation scheme)
Flaw reallocation performance impact Negligible
(for flaws reallocated using the spare
sectors per cylinder reallocation scheme)
Flaw reallocation performance impact 35 msec (typical)
(for flaws reallocated using the spare
tracks per volume reallocation scheme)
Overhead time for head switch 0.7 msec
Overhead time for one track cylinder switch 1.6 msec (typical)
Average rotational latency 4.17 msec
* Rate measured from the start of the first sector transfer to or from the host.
** Assumes system ability to support 5.0 Mbytes/sec and no cable loss.
*** Assumes system ability to support 10.0 Mbytes/sec and no cable loss.