Seagate ST9146603SS ユーザーズマニュアル

Savvio 10K.3 SAS Product Manual, Rev. G

11

Maximum (with verify)

208

104

Maximum (without verify)

140

70

There is no significant difference in the format time between SED and non-SED models of the 
same capacity.

Minimum sector interleave

1 to 1

Data buffer to/from disc media (one 512-byte logical block)*

70 to 133 MBytes/sec

Sustained transfer rate

67 to 124 Mbytes/sec

SAS Interface maximum instantaneous transfer rate

600 Mbytes/sec* per port

 

(dual port = 1200 Mbytes/sec*)

Logical block sizes

512 (default), 520 or 528.

Read/write consecutive sectors on a track

Yes

Flaw reallocation performance impact (for flaws reallocated at format time using the 
spare sectors per sparing zone reallocation scheme.)

Negligible

Average rotational latency

3.0 msec

*Assumes no errors and no relocated logical blocks. Rate measured from the start of the first logical block transfer to or 
from the host.

The drive accepts the commands listed in the SAS Interface Manual less than 3 seconds after DC power has 
been applied.

If the drive receives a NOTIFY (ENABLE SPINUP) primitive through either port and has not received a START 
STOP UNIT command with the START bit equal to 0, the drive becomes ready for normal operations within 30 
seconds (excluding the error recovery procedure).

If the drive receives a START STOP UNIT command with the START bit equal to 0 before receiving a NOTIFY 
(ENABLE SPINUP) primitive, the drive waits for a START STOP UNIT command with the START bit equal to 1. 
After receiving a START STOP UNIT command with the START bit equal to 1, the drive waits for a NOTIFY 
(ENABLE SPINUP) primitive. After receiving a NOTIFY (ENABLE SPINUP) primitive through either port, the 
drive becomes ready for normal operations within 30 seconds (excluding the error recovery procedure).

If the drive receives a START STOP UNIT command with the START bit and IMMED bit equal to 1 and does 
not receive a NOTIFY (ENABLE SPINUP) primitive within 5 seconds, the drive fails the START STOP UNIT 
command.

The START STOP UNIT command may be used to command the drive to stop the spindle. Stop time is 20 sec-
onds (maximum) from removal of DC power. SCSI stop time is 20 seconds. There is no power control switch 
on the drive.