Seagate ST3146756FC (FDE) ユーザーズマニュアル

12

Cheetah 15K.6 FC Product Manual, Rev. C

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

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

If the Motor Start option is disabled, the drive becomes ready within 20 seconds after DC power is applied. If a 
recoverable error condition is detected during the start sequence, the drive executes a recovery procedure and 
the time to become ready may exceed 20 seconds. During spin up to ready time, the drive responds to some 
commands over the FC interface in less than 3 seconds after application of power. Stop time is 30 seconds 
(maximum) from removal of DC power.

If the Motor Start option is enabled, the internal controller accepts the commands listed in the Fibre Channel 
Interface Manual less than 3 seconds after DC power has been applied. After the Motor Start command has 
been received, the drive becomes ready for normal operations within 20 seconds (excluding the error recovery 
procedure). The Motor Start command can also be used to command the drive to stop the spindle.

There is no power control switch on the drive.

Maximum (with verify)

176

144

100

Maximum (without verify)

88

72

50

Sustainable disc transfer rate*:

Minimum

112 Mbytes/sec (typical)

Maximum

171 Mbytes/sec (typical)

Fibre Channel Interface maximum instantaneous transfer rate

400 Mbytes/sec* per port

Logical block sizes

Default is 512-byte data blocks

 

Sector sizes variable to 512, 520, 524 and 528 bytes.

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.

 

 1MB/sec = 1,000,000 bytes/sec