Data Taking Approaches

Channel -

data buffers contain many samples over different time stamps for the same channel
saving data requires seeking to the appropriate buffer and emptying the local buffer
optimized for retrieving data for a few channels over a long time
memory buffers are used to minimize the disks access during saving

Set -

data buffers contain many channels for a given time
saving data only requires one seek for the entire set
optimized for retrieving a set of data at a given time

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