050-SEPROSIEM-01 · Question #56
Network attached Storage (NAS) is used instead of Direct Attached Storage (DAS) for LS appliances because it
The correct answer is D. Is more efficient and allows for high availability. NAS is preferred over DAS for LS appliances because it enables shared storage access and supports redundancy configurations that DAS cannot provide in a multi-appliance environment.
Question
Network attached Storage (NAS) is used instead of Direct Attached Storage (DAS) for LS appliances because it
Options
- AIs more reliable
- BIs less expensive
- CRequires less startup
- DIs more efficient and allows for high availability
How the community answered
(37 responses)- A11% (4)
- B3% (1)
- C5% (2)
- D81% (30)
Why each option
NAS is preferred over DAS for LS appliances because it enables shared storage access and supports redundancy configurations that DAS cannot provide in a multi-appliance environment.
Reliability alone does not differentiate NAS from DAS, as DAS can be equally reliable in single-host configurations without providing the HA benefits NAS offers.
NAS is typically more expensive than DAS due to the additional networking hardware, switches, and configuration overhead required.
NAS requires more initial setup than DAS because it involves network configuration, share provisioning, and access control in addition to physical installation.
NAS allows multiple LS appliances to access the same storage pool simultaneously and supports RAID and failover configurations, enabling high availability that DAS cannot offer because DAS is physically bound to a single host with no shared access capability.
Concept tested: NAS vs DAS storage for high availability
Topics
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