What are two conditions that would cause writes in memory to be written to disk? (Choose two.)
What are two conditions that would cause writes in memory to be written to disk? (Choose two.)
Writes in memory are written to disk when the NVRAM (NVLog) fills up. This is because it prevents loss of data in case of power failure, ensuring data integrity. Additionally, when a Snapshot copy is taken, the current state of the data needs to be stored to disk to preserve the point-in-time image of the data, facilitating data backup and recovery.
A Consistency Point or CP occurs at least once every 10 seconds or when the battery-backed NVRAM buffer is full (or at 50%) whichever comes first. The storage system automatically triggers a consistency point when the NVRAM log is 50% full and writes the data available in the NVRAM log to the disk. By doing so, the write latency of the disk is maintained along with a smooth transition of data to the disk from the NVRAM log. CPs can also occur at other times such as when a snapshot copy is created. Answers: A & D
Correct is AD
https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/What_is_Consistency_Point%2C_and_why_does_NetApp_use_it
A,D correct