What are two supported SAS back-end transfer speeds on the VSP Midrange systems? (Choose two.)

The correct answer is B. 6 Gb/s D. 12 Gb/s. On Hitachi VSP Midrange systems, the back-end SAS interface supports 6 Gb/s (SAS-2 generation) and 12 Gb/s (SAS-3 generation), which are both official SAS standards used for drive connectivity in enterprise storage arrays. Option A (4 Gb/s) is incorrect because 4 Gb/s is a…

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Question

Options

A4 Gb/s
B6 Gb/s
C8 Gb/s
D12 Gb/s

How the community answered

(55 responses)

A
15% (8)
B
80% (44)
C
5% (3)

Explanation

On Hitachi VSP Midrange systems, the back-end SAS interface supports 6 Gb/s (SAS-2 generation) and 12 Gb/s (SAS-3 generation), which are both official SAS standards used for drive connectivity in enterprise storage arrays. Option A (4 Gb/s) is incorrect because 4 Gb/s is a Fibre Channel speed, not a SAS standard - SAS speeds follow a different progression. Similarly, Option C (8 Gb/s) is also a Fibre Channel speed and does not exist as a defined SAS transfer rate. SAS generations double in speed with each revision: 3 Gb/s → 6 Gb/s → 12 Gb/s → 24 Gb/s, so only even powers of 3 apply.

Memory tip: Think "SAS doubles by 3s" - 3, 6, 12, 24. The two VSP Midrange-supported speeds (6 and 12) are the middle two in that sequence. If you see 4 or 8 Gb/s as options, mentally flag them as "Fibre Channel, not SAS" and eliminate them immediately.

Topics

#SAS back-end#transfer speeds#6Gb/s#12Gb/s

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