Why does Data ONTAP save data in NVRAM memory prior to saving it to storage?
A.
Data ONTAP saves data in NVRAM memory to allow Data ONTAP to later write to disk from NVRAM.
B.
Data ONTAP saves data in NVRAM memory because it is more cost efficient than disks.snapvault initialize.
C.
Data ONTAP saves data in NVRAM memory to allow for faster access to read data than acquiring the same
data from disk
D.
Data ONTAP saves data in the NVRAM in order to protect information in the event of power loss or other
disruptions.
Well … the type of memory being NVRAM allows for data protection in case of power loss. But Data ONTAP saves data in a memory in order to allow more efficient disk writes.
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Answer is correct. From the Netapp Library:
NVRAM
NVRAM (non-volatile random access memory) is used by Data ONTAP to store information that is expected to survive a power outage. The NVRAM implementation requires the availability of a hardware RAID controller with a battery-backed write cache instead of a physical NVRAM card. When used this way, it is referred to as “virtual” NVRAM.
https://library.netapp.com/ecm/ecm_download_file/ECMP1200031
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