File Info
| Exam | Dell SC Series Storage Professional Exam |
| Number | DSDSC-200 |
| File Name | Dell.DSDSC-200.TestKing.2018-01-16.116q.tqb |
| Size | 21 MB |
| Posted | Jan 16, 2018 |
| Download | Dell.DSDSC-200.TestKing.2018-01-16.116q.tqb |
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Demo Questions
Question 1
An engineer has installed a Storage Array with a Tier 1 consisting of SSDs.
What should the engineer do to optimize performance for I/O workloads utilizing this Tier?
- Disable write cache on volumes.
- Convert Tier 1 to RAID 0.
- Segregate the SSDs to a separate disk folder.
- Change the sector size from 512 to 4K.
Correct answer: A
Explanation:
Reference: http://en.community.dell.com/support-forums/storage/f/4427/t/19568483 Reference: http://en.community.dell.com/support-forums/storage/f/4427/t/19568483
Question 2
An engineer has mapped a volume to an existing Windows 2012 server. The engineer has configured zoning and confirmed that all paths are correctly configured. The operating system can only see one path within the MPIO software.
Which step should the engineer take so that all paths are presented to the server?
- download and install the MPIO Manager
- run the command mpclaim.exe –i –d “COMPELNTCompellent Vol “
- change the Multipath IO (MPIO) policy to Round Robin within MPIO Manager
- change the operating system to Windows 2012 Pro MPIO within the server properties on Storage Center
Correct answer: B
Explanation:
Reference https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwjJn7yAmqHQAhXF1hoKHQAwBt8QFgg-MAE&url=http%3A%2F%2Fen.community.dell.com%2Fcfs-file%2F__key%2Ftelligent-evolution-components-attachments%2F13-4491-00-00-20-43-79-17%2FMicrosoft_5F00_MPIO_5F00_Best_5F00_Practices_5F002800_CML1004_29005F00_February2016_5F00_Update.pdf%3Fforcedownload%3Dtrue&usg=AFQjCNGUlpAK9xCDTL6w4iCDA90vY_5ERQ&sig2=_POFuUw9JhTx8f5AX4MP1A (page 28) Reference https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwjJn7yAmqHQAhXF1hoKHQAwBt8QFgg-MAE&url=http%3A%2F%2Fen.community.dell.com%2Fcfs-file%2F__key%2Ftelligent-evolution-components-attachments%2F13-4491-00-00-20-43-79-17%2FMicrosoft_5F00_MPIO_5F00_Best_5F00_Practices_5F002800_CML1004_29005F00_February2016_5F00_Update.pdf%3Fforcedownload%3Dtrue&usg=AFQjCNGUlpAK9xCDTL6w4iCDA90vY_5ERQ&sig2=_POFuUw9JhTx8f5AX4MP1A (page 28)
Question 3
An engineer needs to configure a VMware host. According to best practice, the engineer needs to enable a feature by changing the variables QFullSampleSize and QFullThreshold. The engineer sets those two parameters to the value of 0 in VMware ESXi 5.1 Patch 1 and later versions.
Which feature is enabled?
- Adaptive queue depth
- Enhanced Transmission Selection (ETS)
- Asymmetric logical unit access (ALUA)
- Priority Flow Control (PFC)
Correct answer: A
Explanation:
At times of high congestion, VMware has an adaptive queue depth algorithm that can be enabled with the QFullSampleSize and QFullThreshold variables. These variables aid in relieving the congestion by dynamically reducing and increasing the LUN queue depth. Due to the architecture of SC Series storage, enabling these settings is not recommended unless under the guidance of Dell Copilot Support or Dell Support At times of high congestion, VMware has an adaptive queue depth algorithm that can be enabled with the QFullSampleSize and QFullThreshold variables. These variables aid in relieving the congestion by dynamically reducing and increasing the LUN queue depth. Due to the architecture of SC Series storage, enabling these settings is not recommended unless under the guidance of Dell Copilot Support or Dell Support
