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FAQ-Why does the storage system performance deteriorate when the BBU or battery power is insufficient

Publication Date:  2015-07-23 Views:  400 Downloads:  0
Issue Description
Why does the storage system performance deteriorate when the BBU or battery power is insufficient?

Solution
This is caused by the security mechanism of the storage system. When the BBU has insufficient power or is faulty, the LUN write policy is automatically changed to write through. This compromises the performance of the storage system. If the LUN write policy does not need to be changed as the BBU power becomes insufficient, change the write policy to Write Back Mandatory.

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