SK0-004 · Question #853
A server technician is replacing hard disk drives in a server. The server currently has 136GB SAS drives configured with a RAID 0 solution and is using approximately 90GB of its maximum storage…
The correct answer is A. Procure two 250GB SAS drives and configure RAID 1. RAID 1 provides disk mirroring as required, and two 250GB SAS drives supply enough usable capacity to accommodate 20% annual growth from the current 90GB over five years while maintaining drive interface compatibility.
Question
A server technician is replacing hard disk drives in a server. The server currently has 136GB SAS drives configured with a RAID 0 solution and is using approximately 90GB of its maximum storage capacity. Given this scenario, management would like the technician to replace the hard drives, utilize a "mirroring" RAID configuration, and support 20% growth in space annually for the next five years. Which of the following statements BEST supports these goals?
Options
- AProcure two 250GB SAS drives and configure RAID 1.
- BProcure two 250GB SATA drives and configure RAID 1.
- CProcure two 500GB SAS drives and configure RAID 0.
- DProcure two 500GB SATA drives and configure RAID 0.
How the community answered
(43 responses)- A58% (25)
- B7% (3)
- C23% (10)
- D12% (5)
Why each option
RAID 1 provides disk mirroring as required, and two 250GB SAS drives supply enough usable capacity to accommodate 20% annual growth from the current 90GB over five years while maintaining drive interface compatibility.
RAID 1 mirrors data across two drives, satisfying the mirroring requirement. Starting at 90GB and growing at 20% per year for five years yields approximately 224GB needed (90 x 1.2^5), so 250GB of usable capacity is sufficient. SAS drives must be used to maintain interface compatibility with the existing server infrastructure that already uses SAS.
SATA drives are interface-incompatible with a server already built around a SAS backplane and controller, making a straight replacement without additional adapter hardware unsupported.
RAID 0 stripes data across drives for performance but provides no redundancy or mirroring, directly violating the management requirement for a mirroring configuration.
RAID 0 does not provide mirroring, and SATA drives are interface-incompatible with the existing SAS environment, making this option wrong on two counts.
Concept tested: RAID 1 mirroring, capacity planning, and drive interface selection
Source: https://learn.microsoft.com/en-us/windows-server/storage/storage-spaces/storage-spaces-fault-tolerance
Topics
Community Discussion
No community discussion yet for this question.