H19-338_V3.0 · Question #182
OceanStor Pacific uses NVDIMMs as cache, which can prevent data loss during power failure.
The correct answer is A. TRUE. Option A is correct because NVDIMMs (Non-Volatile Dual In-line Memory Modules) combine the speed of standard DRAM with the persistence of NAND flash storage. When power is lost, the NVDIMM automatically backs up data from the volatile DRAM portion to the integrated flash…
Question
OceanStor Pacific uses NVDIMMs as cache, which can prevent data loss during power failure.
Options
- ATRUE
- BFALSE
How the community answered
(61 responses)- A82% (50)
- B18% (11)
Explanation
Option A is correct because NVDIMMs (Non-Volatile Dual In-line Memory Modules) combine the speed of standard DRAM with the persistence of NAND flash storage. When power is lost, the NVDIMM automatically backs up data from the volatile DRAM portion to the integrated flash, preserving all cached data. OceanStor Pacific leverages this technology specifically to protect write cache data during unexpected power outages.
Option B is incorrect because it misunderstands what the "NV" in NVDIMM stands for - non-volatile - meaning data survives power loss by design, which is the opposite of regular DRAM cache.
Memory tip: Break down the acronym - NVDIMM means Non-Volatile DIMM. Non-volatile memory retains data without power, so any cache built on NVDIMMs is inherently protected against power failure.
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