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SK0-003 · Question #781

Users in a large corporate environment have been reporting that access to their virtualized servers has slowed recently. All of the virtualized servers are hosted on an iSCSI NAS. Which of the…

The correct answer is C. Check the baseline of the NAS device. To troubleshoot recent performance degradation on virtualized servers hosted on an iSCSI NAS, the first step is to establish a performance comparison point.

Troubleshooting

Question

Users in a large corporate environment have been reporting that access to their virtualized servers has slowed recently. All of the virtualized servers are hosted on an iSCSI NAS. Which of the following should be done to troubleshoot performance?

Options

  • AValidate that the firmware on the hard drives in the NAS are all at the same level
  • BReboot the NAS
  • CCheck the baseline of the NAS device
  • DReboot the host servers

How the community answered

(33 responses)
  • A
    3% (1)
  • B
    15% (5)
  • C
    73% (24)
  • D
    9% (3)

Why each option

To troubleshoot recent performance degradation on virtualized servers hosted on an iSCSI NAS, the first step is to establish a performance comparison point.

AValidate that the firmware on the hard drives in the NAS are all at the same level

While consistent firmware is good practice, it's unlikely to be the immediate cause of recent slowdowns unless a change was made, and it's not a primary troubleshooting step for sudden performance issues.

BReboot the NAS

Rebooting the NAS is a reactive measure that might temporarily fix issues but doesn't identify the root cause of the performance problem.

CCheck the baseline of the NAS deviceCorrect

Checking the baseline of the NAS device provides a historical record of normal performance metrics, allowing administrators to identify deviations that indicate a problem. Comparing current performance data against this baseline helps pinpoint when and how performance has changed, guiding further troubleshooting efforts.

DReboot the host servers

Rebooting host servers might temporarily relieve some load but doesn't address the potential bottleneck or issue residing on the iSCSI NAS itself.

Concept tested: Storage performance troubleshooting and baselining

Source: https://learn.microsoft.com/en-us/windows-server/administration/performance-monitor/get-started-with-performance-monitor

Topics

#NAS performance#iSCSI#performance troubleshooting#virtualization

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