NS0-157 · Question #32
NS0-157 Question #32: Real Exam Question with Answer & Explanation
The correct answer is B: Set the option to rewarm the FlashCache in both nodes of the HA pair.. The system does not serve data from a Flash Cache or Flash Cache 2 module when a node is shutdown. However, the WAFL external cache preserves the cache during a graceful shutdown and can serve "warm" data after giveback. The WAFL external cache can preserve the cache in Flash Cac
Question
Options
- AConfirm that the aggregates using the FlashCache card are configured appropriately.
- BSet the option to rewarm the FlashCache in both nodes of the HA pair.
- CVerify that the FlashCache card is located in the appropriate slot in the NetApp controller.
- DVerify that the FlashCache card has been configured only on the node where the feature is
Explanation
The system does not serve data from a Flash Cache or Flash Cache 2 module when a node is shutdown. However, the WAFL external cache preserves the cache during a graceful shutdown and can serve "warm" data after giveback. The WAFL external cache can preserve the cache in Flash Cache modules during a graceful shutdown. It preserves the cache through a process called "cache rewarming," which helps to maintain system performance after a graceful shutdown. For example, you might shut down a system to add hardware or upgrade software. Cache rewarming is enabled by default if you have a Flash Cache or Flash Cache 2 module installed. Cache rewarming is available when both nodes in an HA pair are running Data ONTAP https://library.netapp.com/ecmdocs/ECMP1196798/html/GUID-AEB76252-545D-4886-ABE9- B91452FDD3AF.html
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