Seagate ST3450657SS, ST3300457SS Start/stop time, Format command execution time minutes, 5.2.3

5.2.2Format command execution time (minutes)

When changing sector sizes, the format times shown below may need to be increased by 30 minutes.

	600GB	450GB	300GB
Maximum (with verify)	119	90	58
Maximum (without verify)	60	45	29

Note. There is approximately a 1.5 increase in time to format a SED drive versus a non-SED drive of the same capacity.

Execution time measured from receipt of the last byte of the Command Descriptor Block (CDB) to the request for a Status Byte Transfer to the Initiator (excluding connect/disconnect).

5.2.3	General performance characteristics
Sustainable disk transfer rate*:
Minimum		122	Mbytes/sec (typical)
Maximum		204	Mbytes/sec (typical)
SAS Interface maximum instantaneous transfer rate		600	Mbytes/sec* per port
Logical block sizes
Default is 512-byte data blocks
Sector sizes variable to 512, 520, and 528 kbytes.
Read/write consecutive sectors on a track		Yes
Flaw reallocation performance impact (for flaws reallocated at format time using		Negligible
the spare sectors per sparing zone reallocation scheme.)
Average rotational latency		2.0 msec
*Assumes system ability to support the rates listed and no cable loss.
1 MB/sec = 1,000,000 bytes/sec

5.3Start/stop time

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 20 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 20 seconds (excluding the error recovery procedure).

10 Cheetah 15K.7 SAS Product Manual, Rev. D