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2.2.2
LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1, where n is
the number of guaranteed sectors as defined above.
See
Section 5.3.1, "Identify Device command"
addressing support of drives with capacities over 137GB.
2.3
Recording and interface technology
Interface
Recording method
Recording density, KBPI (Kb/in max)
Track density, KTPI (ktracks/in avg)
2
Areal density (Gb/in
avg)
Spindle speed (RPM) (± 0.2%)
Internal data transfer rate (Mb/s max)
Sustained data transfer rate (MiB/s max)
I/O data-transfer rate (MB/s max)
2.4
Start/stop times
Power-on to ready time is based on typical operating conditions, default full current spin-up profile, and clean
shutdown prior to measurement. To ensure a clean shutdown a Flush Cache, Standby, or Standby Immediate
command must be completed before removal of interface power.
Power-on to Ready (sec) (typ/max)
Standby to Ready (sec) (typ/max)
Ready to spindle stop (sec) (max)
NOTE
Seagate Exos X18 SATA Product Manual, Rev. B
25/30
25/30
20
An unexpected power loss event, spin up at cold or hot temperature extremes may
cause the drive to exceed the typical and max time to ready by 5 to 20 seconds.
Extended time to ready is dependent on cache state and environmental conditions
prior to the unexpected power loss and during the subsequent power on.
(words 60-61 and 100-103) for additional information about 48-bit
Serial ATA (SATA)
Perpendicular
2470
482
1146
7200
2899
258
600 (Ultra DMA mode 5)
Drive specifications
11
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