NS0-521 · Question #102
An engineer has a 100GB volume with the space guarantee set to volume and fractional reserve set to 100. The snapshot reserve is disabled. The volume contains two 20GB LUNs, and each LUN has the…
The correct answer is C. 20GB. With the volume-level space guarantee and 100% fractional reserve, the total space reserved for the LUNs is the sum of their sizes (2 × 20GB = 40GB) plus the fractional reserve equal to their size (another 40GB). Since the volume is 100GB, after accounting for the reserved…
Question
An engineer has a 100GB volume with the space guarantee set to volume and fractional reserve set to 100. The snapshot reserve is disabled. The volume contains two 20GB LUNs, and each LUN has the space guarantee enabled and is 50% full. The engineer creates a snapshot of the volume, and no data is written or modified after the snapshot is taken. What is the available space in the volume?
Options
- A60GB
- B40GB
- C20GB
- D80GB
How the community answered
(40 responses)- A13% (5)
- B28% (11)
- C55% (22)
- D5% (2)
Explanation
With the volume-level space guarantee and 100% fractional reserve, the total space reserved for the LUNs is the sum of their sizes (2 × 20GB = 40GB) plus the fractional reserve equal to their size (another 40GB). Since the volume is 100GB, after accounting for the reserved space (80GB), 20GB remains available. Snapshots consume reserved space but no additional data was written, so available space remains 20GB.
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