A customer wants to use FlashCache but does not want to lose the information stored in the FlashCache card when a takeover occurs in a high-availability solution. What should the customer do to make…

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

• A
  5% (3)
• B
  85% (50)
• C
  2% (1)
• D
  8% (5)

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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