TDMS Data storage problem

[胖胖龙]

I want to use TDMS file formats to store data from the DAQ. There are dozens of data every 10 ms, at the same time write to TDMS file. I want to ask to do so will be bad for the  hard disk?

[mikeporter]

If the data coming in is like a waveform, then store the entire block of data as a single item in the tdms file. How long does the test run, is it feasible to save it once at the end?

Mike...

[crossrulz]

The easiest way would be to use the DAQmx Configure Streaming.  With that function, you set up DAQmx to log all of the data straight to a TDMS file.  You don't have to do anything except tell it where to put the data and run your task.

[JÞB]

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@胖胖龙 wrote:

I want to use TDMS file formats to store data from the DAQ. There are dozens of data every 10 ms, at the same time write to TDMS file. I want to ask to do so will be bad for the  hard disk?

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Getting back to the question posted.  There is a potential that the file may become fragmented as it reaches large size.  There is a defragmenting tool available.  There will be no harm done to the storage media on any type of hard drive you are likely to have.  

That being said, I would not try it with anything left over from the 1980's