Q:

How the RAID0 write data?

This is the RAID0 structure:

there have 3 disks,
I have a question about this,
when write data into disk, is it write disk A full, then write disk B? 
or is write a little data into disk A, then write into disk B a little, then write to disk C a little?  

A:

There are two types of RAID0 arrays. 
First type is named "concatenate" and do this: fill disk A, then continue to disk B, then switch to disk C. 
Second type is named "striping" and it write chunk to disk A, chunk to disk B and chunk to disk C and write chunk to disk A, chunk to disk B .... (those chunks are named stripes)

