Seagate ST3300655LC Cheetah 15K.6 FC Product Manual - Page 18

Start/stop time

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4.2.2 Format command execution time (minutes) When changing sector sizes, the format times shown below may need to be increased by 30 minutes. Maximum (with verify) Maximum (without verify) ST3450856FC ST3450056FC 176 88 ST3300656FC ST3300056FC 144 72 ST3146356FC ST3146756FC 100 50 Note. There is no significant difference in the format time between FDE and non-FDE models of the same capacity. 4.2.3 General performance characteristics Sustainable disc transfer rate*: Minimum Maximum 112 Mbytes/sec (typical) 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 Negligible using the spare sectors per sparing zone reallocation scheme.) 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 4.3 Start/stop time 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. 12 Cheetah 15K.6 FC Product Manual, Rev. D

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12
Cheetah 15K.6 FC Product Manual, Rev. D
4.2.2
Format command execution time (minutes)
When changing sector sizes, the format times shown below may need to be increased by 30 minutes.
Note.
There is no significant difference in the format time between FDE and non-FDE models of the same
capacity.
4.2.3
General performance characteristics
4.3
Start/stop time
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.
ST3450856FC
ST3450056FC
ST3300656FC
ST3300056FC
ST3146356FC
ST3146756FC
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