Seagate ST973451FC Manuale Utente

12

Savvio 15K.1 FC Product Manual, Rev. B

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).

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.

Maximum (with verify)

52 minutes

26 minutes

Maximum (without verify)

35 minutes

18 minutes

Sustained transfer rate

79 to 112 Mbytes/sec

Fibre Channel Interface maximum instantaneous transfer rate

400 Mbytes/sec* per port

 

(dual port = 800 Mbytes/sec*)

Logical block sizes

- 512 (default)

 

- 520

 

- 524

 

- 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

2.0 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.