2.2Formatted Capacity; Lba Mode; Recording And Interface Technology; Start/Stop Times - Seagate FIRECUDA ST8000DX001 Product Manual

2.2Formatted capacity

ST models Formatted capacity*
ST8000DX001 8TB
ST4000DX005 4TB
* One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting.
Note. LBA Counts for drive capacities greater than 8TB are calculated based upon the
SFF-8447 standard publication.
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 4.3.1, "Identify Device command"
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, 0 Skew)
2
Areal density (Gb/in , @ 0 skew mid-disk)
Spindle speed (RPM) (± 0.2%)
Internal data transfer rate (Mb/s max)
Sustained data transfer rate (MiB/s max) (8TB models)
Sustained data transfer rate (MiB/s max) (4TB models)
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)
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.
Seagate FireCuda SATA Product Manual, Rev. A
Guaranteed sectors
15,628,053,168
7,814,037,168
ftp://ftp.seagate.com/sff/SFF-8447.PDF
(words 60-61 and 100-103) for additional information about 48-bit addressing
Serial ATA (SATA)
Perpendicular
2499
487
1215
7200
2169
248 (260 MB/s)
244 (256 MB/s)
600 (Ultra DMA mode 5)
23/30
23/30
20
Bytes per logical sector
512
8