Storage COW
Created: Jul 26, 2021 12:47:27Latest reply: Jul 26, 2021 13:48:03
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(problem resolved)
In the stored snapshot COW, the write performance of the LUN will drop drastically at the beginning. With time copy on writing copies each data block of the data LUN before writing, the write performance of the data LUN will slowly recover!
As shown
1- Why does the data LUN write performance drop drastically after taking a COW snapshot? Later, over time, why the write performance of the data LUN is slowly restored? This concept can be understood, but there is no standard language to explain what I said!
2- When all data blocks of the data LUN are copied on write, is the write performance restored to the same state as before?
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