WD Ultrastar® DC HC570 22TB | 7200 RPM | 6 Gb/s SATA | 12 Gb/s SAS

Specifications
DATA SHEET DATA CENTER HARD DRIVES
Ultrastar® DC HC570
SATA Models SAS Models
Model Numbers WUH722222ALE6L1
WUH722222ALE6L4
WUH722222AL5201
WUH722222AL5204
Part Numbers 0F48154 (SED)
0F48155 (Base SE)
0F48051 (SED)
0F48052 (Base SE)
Configuration
Interface SATA 6Gb/s SAS 12Gb/s
Capacity1 (TB) 22TB 22TB
Format: Sector size (bytes)2 4Kn: 4096
512e: 512
4Kn: 4096
512e: 512
Areal density (Gbits/sq. in.) 1109 1109
ArmorCache Supported Supported
Performance
Data buffer3 (MB) 512 512
Rotational speed (RPM) 7200 7200
Latency average (ms) 4.16 4.16
Interface transfer rate (MB/s, max) 600 1200
Sustained transfer rate4 (MB/s, max) /
(MiB/s, max) 291/277 291/277
Random Read4 4KB QD=32 (IOPS) 212 212
Random Write4 4KB QD=32, WCE/WCD
(IOPS) 565/565 565/565
Random4 50/50 Read/Write 4KB QD=4
(IOPS) 220 220
Reliability
Error rate
(non-recoverable, bits read) 1 in 1015 1 in 1015
Load/Unload cycles
(at 40ºC) 600,000 600,000
Availability
(hrs/day x days/wk) 24×7 24×7
MTBF5 (M hours, projected) 2.5 2.5
Annualized Failure Rate5 (AFR, projected) 0.35% 0.35%
Limited warranty (yrs) 5 5
SATA Models SAS Models
Acoustics
Idle/Operating (Bels, typical) 2.0/3.2 2.0/3.2
Power
Requirement +5 VDC, +12VDC +5 VDC, +12VDC
Random 50/50 Read/Write, 4KB QD=4
@MAX IOPS (W) 9.3 9.6
Idle6 (W) 5.7 6.0
Power consumption efficiency at idle
(W/TB)
0.26 0.27
Physical Size
z-height (mm) 26.1 26.1
Dimensions (width x depth, mm) 101.6 (+/-0.25) x 147 101.6 (+/-0.25) x 147
Weight (g, max) 670 670
Environmental (Operating)
Temperature7 5° C to 60° C 5° C to 60° C
Shock (half-sine wave 2 ms, G) 40 40
Vibration (G RMS 5 to 500 Hz) 0.7 0.7
Environmental (Non-Operating)
Ambient Temperature -40º to 70º C -40º to 70º C
Shock (half-sine wave, G) 200 200
Vibration (G RMS 2 to 200 Hz) 1.04 1.04
¹ One MB is equal to one million bytes, one GB is equal
to one billion bytes and one TB equals 1,000GB (one
trillion bytes). Actual user capacity may be less due to
operating environment.
2 Advanced Format drive: 4K (4096-byte) physical
sectors.
³ Portion of buffer capacity used for drive firmware.
⁴ Based on internal testing; performance may vary de-
pending on host environment, drive capacity, logical
block address (LBA), and other factors. The location
of the max rate is at approximately 10% into the
capacity of the HDD. 1MiB = 1,048,576 bytes (2^20),
1MB = 1,000,000 bytes (10^6).
⁵ Projected values. Final MTBF and AFR specifications
will be based on a sample population and are esti-
mated by statistical measurements and acceleration
algorithms under typical operating conditions, typical
workload and 40°C device-reported temperature.
Derating of MTBF and AFR will occur above these
parameters, up to 550TB/year and 60°C (device
reported temperature). MTBF and AFR ratings do not
predict an individual drive’s reliability and do not
constitute a warranty.
6 Idle specification is based on use of Idle_A.
7 5°C ambient temperature, 60°C device reported
temperature.
NOTE: See “How to read the Ultrastar model number” below for possible values for xx and y.
How to Read the Ultrastar Model Number
WUH722222ALxxyz
xx = Interface
E6 = 512e SATA 6Gb/s,
52 = 512e SAS 12Gb/s
y = Power Disable Pin 3 status
0 = Power Disable Pin 3 support
L = Legacy Pin 3 config – no Power
Disable support
z = Data Security Mode
1 = SED*: Self Encrypting Drive
TCG-Enterprise and Sanitize Crypto
Scramble / Erase
4 = Base (SE)*: No Encryption.
Sanitize Overwrite only.
* ATA Security Feature Set comes
standard on SATA