Whats the difference between write and transfer

[QuantumBit]

Hi, simple question, whats the difference between write speeds and transfer speeds?

[tlink]

i imagine that transfer speeds means relocating data on the drive itself, and write speeds means writing new data to the drive. but where did you get these terms from?

[Captain_WD]

33 minutes ago, QuantumBit said:

~snip~

Hi there

 

As @tlink pointed out, this may very well mean the speed that the drive actually writes to the platters vs the overall transfer speed from point A to point B which depends on many thing such as the read/write speed of both the source and the target, the connection itself, the type of data, application used to transfer that speed and the cache of the system.

 

Could you specify a bit more what you mean so we can give you a more detailed information?

 

Captain_WD. 

[QuantumBit]

12 hours ago, Captain_WD said:

Hi there

 

As @tlink pointed out, this may very well mean the speed that the drive actually writes to the platters vs the overall transfer speed from point A to point B which depends on many thing such as the read/write speed of both the source and the target, the connection itself, the type of data, application used to transfer that speed and the cache of the system.

 

Could you specify a bit more what you mean so we can give you a more detailed information?

 

Captain_WD. 

Thanks for the response

 

Whats I mean is I was seeing a video and it said something about transfer speeds.

 

An example is, if I had a episode of a TV show downloaded to my computer, and then I transferred it to the USB/SD/External HDD/SSD, would that be considered its write or transfer speeds.

 

Also one final simple question, is read speeds how fast it opens? I.e if I have a 100 MB/s read speed, will it take 2 seconds to open a 200MB file?

[Captain_WD]

7 hours ago, QuantumBit said:

~snip~

Although not particularly specified, you can view the Transfer speeds as the overall current speed of moving data from point A to point B. Moving a TV Show from your system to an external drive would in general be  a simple transfer. Those speeds would depend on your internal drive's read speeds, the drive's connection to your system's motherboard (SATA cable), the USB port that you are using (and its limitations) the bus that your flash drive is using to connect with that port (USB plug and the internal write speeds of the flash drive. Other factors such as amount of memory, CPU performance, software that's being used for the transfer also play a role here. The general rule of thumb is that the transfer is as fast as the slowest part of the connection. If you have an internal drive that can read the data and give it to the flash drive with about 100MB/s but the flash drive can only write with 30MB/s you will see a transfer speed of 30MB/s.

 

Read and Write speeds are solely for the specified drive. A certain drive can read and write data from and to it with 150MB/s (for example). This is the speed of taking the data (from the memory or from the cache) and actually writing it to the platters of the drive (if we are talking about HDDs). Same goes with the read speeds - this is the speed that the data is taken from the platters and put in the memory or cache. 

 

The read/write speeds of two storage locations are the major part of an overall transfer speed. 

 

Captain_WD. 

[QuantumBit]

2 hours ago, Captain_WD said:

Although not particularly specified, you can view the Transfer speeds as the overall current speed of moving data from point A to point B. Moving a TV Show from your system to an external drive would in general be  a simple transfer. Those speeds would depend on your internal drive's read speeds, the drive's connection to your system's motherboard (SATA cable), the USB port that you are using (and its limitations) the bus that your flash drive is using to connect with that port (USB plug and the internal write speeds of the flash drive. Other factors such as amount of memory, CPU performance, software that's being used for the transfer also play a role here. The general rule of thumb is that the transfer is as fast as the slowest part of the connection. If you have an internal drive that can read the data and give it to the flash drive with about 100MB/s but the flash drive can only write with 30MB/s you will see a transfer speed of 30MB/s.

 

Read and Write speeds are solely for the specified drive. A certain drive can read and write data from and to it with 150MB/s (for example). This is the speed of taking the data (from the memory or from the cache) and actually writing it to the platters of the drive (if we are talking about HDDs). Same goes with the read speeds - this is the speed that the data is taken from the platters and put in the memory or cache. 

 

The read/write speeds of two storage locations are the major part of an overall transfer speed. 

 

Captain_WD. 

Thank you!