NS0-157 · Question #194
In Data ONTAP 8.1.1 Cluster-Mode, what is the maximum TCP read size for an NFSv3 client?
The correct answer is A. 1,048,576 bytes. In Data ONTAP 8.1.1 Cluster-Mode, the maximum TCP read size (rsize) for an NFSv3 client is 1,048,576 bytes (1 MB).
Question
In Data ONTAP 8.1.1 Cluster-Mode, what is the maximum TCP read size for an NFSv3 client?
Options
- A1,048,576 bytes
- B32,768 bytes
- C65,536 bytes
- D2,097,152 bytes
How the community answered
(24 responses)- A92% (22)
- B4% (1)
- C4% (1)
Why each option
In Data ONTAP 8.1.1 Cluster-Mode, the maximum TCP read size (rsize) for an NFSv3 client is 1,048,576 bytes (1 MB).
Data ONTAP 8.1.1 Cluster-Mode raised the NFSv3 TCP rsize ceiling to 1,048,576 bytes (1 MB), allowing large sequential reads to complete in fewer round trips and significantly improving throughput for high-bandwidth NFS workloads.
32,768 bytes (32 KB) is the legacy NFSv2 maximum transfer size and falls far below the NFSv3 TCP read ceiling supported in ONTAP 8.1.1.
65,536 bytes (64 KB) was the NFSv3 TCP rsize maximum in older ONTAP releases and is not the upper limit in the 8.1.1 Cluster-Mode release.
2,097,152 bytes (2 MB) exceeds the documented NFSv3 TCP rsize maximum for Data ONTAP 8.1.1 Cluster-Mode.
Concept tested: NFSv3 maximum TCP read size in ONTAP 8.1.1 Cluster-Mode
Source: https://docs.netapp.com/us-en/ontap/nfs-admin/nfs-client-requests-concept.html
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