HP0-J73 · Question #293
A customer plans to implement an HP StoreVirtual 4130 Storage System. They need 7 TB of usable capacity using network RAID 10. How many HP StoreVirtual 4130 Storage will they need to meet this…
The correct answer is D. Four. HP StoreVirtual Network RAID 10 requires a minimum of four nodes and delivers 50% storage efficiency, so four 4130 nodes are needed to achieve 7 TB of usable capacity.
Question
A customer plans to implement an HP StoreVirtual 4130 Storage System. They need 7 TB of usable capacity using network RAID 10. How many HP StoreVirtual 4130 Storage will they need to meet this requirement?
Options
- AOne
- BTwo
- CThree
- DFour
How the community answered
(15 responses)- A13% (2)
- B27% (4)
- C7% (1)
- D53% (8)
Why each option
HP StoreVirtual Network RAID 10 requires a minimum of four nodes and delivers 50% storage efficiency, so four 4130 nodes are needed to achieve 7 TB of usable capacity.
A single node cannot implement Network RAID 10 because the feature requires at least four nodes for mirrored pairs, and a single node provides insufficient raw capacity.
Two nodes can technically form a Network RAID 10 pair but deliver only approximately 3.5 TB of usable capacity after overhead, which falls far short of the 7 TB requirement.
Three nodes is not a valid Network RAID 10 configuration because the feature requires an even number of nodes to form balanced, symmetrical mirrored pairs.
Network RAID 10 mirrors data across node pairs, consuming 50% of total raw capacity as overhead, and requires a minimum of four nodes to form two balanced mirrored pairs. Each HP StoreVirtual 4130 node provides approximately 3.5 TB of raw capacity, so four nodes yield 14 TB raw and 7 TB usable after the mirroring overhead is applied.
Concept tested: HP StoreVirtual Network RAID 10 node capacity planning
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