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Drive specifications
2.0
Drive specifications
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. For
convenience, the phrases the drive and this drive are used throughout this manual to indicate the Exos X24 SATA drive
models
2.1
Specification summary tables
The specifications listed in the following tables are for quick reference. For details on specification measurement or
definition, see the appropriate section of this manual.
Table 1 Drive specifications summary
Drive specification
ST24000NM001H
ST24000NM002H
ST20000NM001H
ST20000NM002H
Formatted (512 bytes/sector)*
24TB
20TB
Guaranteed sectors
(see Section 2.2)
Heads
20
18
Disk
10
9
Bytes per logical sector
537
Bytes per physical sector
4096
Recording density, KBPI (Kb/in max)
2552
Track density, KTPI (ktracks/in avg.)
512
Areal density, (Gb/in2 avg)
1260
Spindle speed (RPM)
7200
Internal data transfer rate (Mb/s max)
2951
Max Sustained transfer rate OD (MiB/s
272 (285 MB/s max)
Sustained transfer rate OD (MiB/s
259 (272 MB/s max)
I/O data-transfer rate (MB/s max)
600
ATA data-transfer modes supported
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
Cache buffer
512MB
Weight: (maximum)
685g (1.510 lb)
Average latency
4.16ms
Power-on to ready (sec) (typ/max)
25/30
Standby to ready (sec) (typ/max)
25/30
Startup current (typical) 12V (peak)
2.6A
2.0A (optional configuration through Smart Command Transport)
Voltage tolerance (including noise)
5V ± 5%
12V ± 10%
Operating temperature
5°C Ambient to 60°C (Drive Reported Temperature)
Non-Operating temperature
–40° to 70°C (Ambient Temperature, see sections 2.6.1 and 2.13)
Seagate Exos X24 SATA Product Manual, Rev. C
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