Perform read/write speed tests on internal andexternal hard disk drivesas well as storage area networks andUSB flash drives.

How Are Read and Write Speeds Measured?

It’s also common for speeds to be expressed in MB/s.

An abstract illustration of fast data storage

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Set the number of passes that should be performed.

Blackmagic Disk Speed Testis a similar tool for Macs.

The former works for bothoperating systems.

Ahard disk driveuses magnetism to store data on a rotating disk.

A read/write head floats above the spinning disk reading and writing data.

The faster the disk spins, the faster an HDD performs.

Typical read/write speeds for an HDD top out at 200 MBps.

Instead of a disk,solid-state drivesuse semiconductors to store data, which is much more efficient.

Consequently, SSDs clock faster read and write speeds than HDDs.

While HDDs are slower than SDDs, they are also cheaper.

However, pricing for SSDs is steadily falling.

How Fast Is Fast Enough?

For most people, read/write speeds aren’t a huge concern unless you regularly work with large files.