In Huawei OceanStor hybrid flash storage, which of the following statements about cache high and low water levels is correct? (Multiple choice)

The correct answer is A. The time that IO stays in the cache is closely related to the setting of the low water mark. When the B. When the storage write strategy is write-back, the cache controls the storage capacity and flush rate C. By default, the low water mark value set by the system is 20. In the OLTP business scenario, the. See the full explanation below for the reasoning.

Storage Security and Performance Optimization

Question

Options

AThe time that IO stays in the cache is closely related to the setting of the low water mark. When the
BWhen the storage write strategy is write-back, the cache controls the storage capacity and flush rate
CBy default, the low water mark value set by the system is 20. In the OLTP business scenario, the
DWhen the business pressure is high, you can appropriately raise the high water level to avoid

How the community answered

(25 responses)

A
80% (20)
D
20% (5)

Topics

#cache watermark#write-back strategy#cache flush rate#OLTP cache tuning

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