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Comparison Seagate Exos X22 ST22000NM001E 22 TB
SATA
vs Seagate IronWolf Pro ST22000NT001 22 TB

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Seagate Exos X22 ST22000NM001E 22 TB SATA
Seagate IronWolf Pro ST22000NT001 22 TB
Seagate Exos X22 ST22000NM001E 22 TB
SATA
Seagate IronWolf Pro ST22000NT001 22 TB
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Placementbuilt-inbuilt-in
TypeHDDHDD
Featuresserverserver
Size22000 GB22000 GB
Form factor3.5 "3.5 "
ConnectionSATA3SATA3
Helium
Manufacturer's warranty5 years5 years
Technical specs
Cache memory512 MB512 MB
RPM7200 rpm7200 rpm
Data transfer rate285 MB/s285 MB/s
Plates10
Operation power consumption7.9 W
Standby power consumption5.74 W6 W
Shockproof200 G
MTBF2.5 M h
MTBF600 K
General
Size147x102x26 mm147x102x26 mm
Weight680 g690 g
Added to E-Catalogaugust 2023july 2023

Helium

Hard drives in which sealed cases are filled with helium from the inside.

The meaning of this hardware is twofold. First, the density of helium is seven times less than the density of air. As a result, such a filler creates less resistance during the rotation of the plates, which has a positive effect on both energy efficiency and heat dissipation, as well as on the speed of data access. Secondly, helium is an inert gas, which means that it does not chemically interact with the internal parts of the drive, and the likelihood of corrosion (and so, in principle, low) is reduced to an absolute minimum. On the other hand, the production of helium HDDs is a very expensive process. Therefore, most of these drives are either professional server solutions or advanced drives for home PCs of the appropriate level.

Plates

The number of platters provided in the design of the hard drive.

Physically, a hard disk consists of one or more platters, on which information is recorded. Several plates can be provided in order to achieve the desired volume without increasing the form factor. At the same time, it is also necessary to install an appropriate number of reading heads in such a drive, which complicates the design, reduces its reliability, and increases the cost. Therefore, manufacturers choose the number of plates based on a reasonable compromise between these points, and for selection, this parameter is more of a reference than practically significant.

Operation power consumption

The amount of power consumed by the disk when reading and writing information. In fact, this is the peak power consumption, it is in these modes that the drive consumes the most energy.

HDD power consumption data is needed primarily to calculate the overall system power consumption and power supply requirements for the system. In addition, for laptops that are planned to be used often "in isolation from outlets", it is advisable to choose more economical drives.

Standby power consumption

The amount of power consumed by the disk "idle". In the on state, the disk platters rotate regardless of whether information is being written or read or not — maintaining this rotation takes the energy consumed while waiting.

The lower the power consumption while waiting, the more economical the disk is, the less energy it consumes. At the same time, we note that in fact this parameter is relevant mainly when choosing a drive for a laptop, when energy efficiency is crucial. For stationary PCs, “idle” power consumption does not play a special role, and when calculating the requirements for a power supply, it is necessary to take into account not this indicator, but the power consumption during operation (see above).

Shockproof

A parameter that determines the resistance of the hard drive to drops and shocks during operation (that is, in the on state). Shock resistance is measured in G — units of overload, 1 G corresponds to the usual force of gravity. The higher the G number, the more resistant the disc is to various kinds of concussions and the less likely it is to be damaged, say, in the event of a fall. This setting is especially important for external drives and drives used in laptops.

MTBF

Guaranteed (minimum) hard drive uptime. The longer the time between failures, the more durable and reliable the device. At the same time, we note that after this time, the drive will not necessarily fail immediately — most models remain operational even after the claimed resource has been exhausted, but the manufacturer does not give any guarantees here.

MTBF

Guaranteed (minimum) number of hard drive on-off cycles after which it will remain operational. The higher this number, the more reliable the drive.