SG0-001 · Question #571
An administrator wants to achieve MAXIMUM component redundancy in a server running single quad-headed HBA. Which of the following will satisfy this goal?
The correct answer is D. Replace quad-headed HBA with 4 single-headed HBAs.. To achieve maximum component redundancy for a server's storage connectivity, a single quad-headed HBA should be replaced with four individual single-headed HBAs.
Question
An administrator wants to achieve MAXIMUM component redundancy in a server running single quad-headed HBA. Which of the following will satisfy this goal?
Options
- AReplace quad-headed HBA with 2 dual-headed FCoE adapters.
- BReplace quad-headed HBA with 2 dual-headed HBAs.
- CReplace quad-headed HBA with 2 single-headed HBAs and 1 dual-headed.
- DReplace quad-headed HBA with 4 single-headed HBAs.
How the community answered
(43 responses)- A14% (6)
- B5% (2)
- C7% (3)
- D74% (32)
Why each option
To achieve maximum component redundancy for a server's storage connectivity, a single quad-headed HBA should be replaced with four individual single-headed HBAs.
Replacing with 2 dual-headed FCoE adapters means each adapter is still a single point of failure for two paths, which is less redundant than having four separate cards.
Replacing with 2 dual-headed HBAs means if one HBA fails, two paths are lost, which is not maximum component redundancy.
This configuration still includes a dual-headed HBA, creating a single point of failure for two paths, and does not achieve maximum redundancy compared to four single-headed cards.
Replacing a single quad-headed HBA with four individual single-headed HBAs provides maximum component redundancy because each HBA operates independently on a separate physical card. This means that if any single HBA card fails, only one of the four paths to storage is affected, leaving the other three fully functional.
Concept tested: Server hardware component redundancy (HBAs)
Topics
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