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[Oct-2021] Verified EMC Exam Dumps with DES-1221 Exam Study Guide
NEW QUESTION 34
Refer to the Exhibit.
Note the yellow arrow. A Data Center Engineer notices that the LED is blinking blue and amber alternating at one second intervals. What does this indicate?
- A. System not initialized
- B. Node is Degraded
- C. System is booting
- D. Node in Service Mode
Answer: D
NEW QUESTION 35
When a Volume is selected for the intercluster migration, what other data services associated with the volume will also be moved with it?
- A. NAS Servers and File.systems
- B. Replications and Volume Groups
- C. Thin Clones and snapshots
- D. Thin Clones and File systems
Answer: C
NEW QUESTION 36
What does the remote replication Failover operation do?
- A. Promotes the destination system to production and resets the RPO synchronization cycle in the protection policy
- B. Promotes the destination system to production with its replica data consistent to the last successful RPO synchronization state
- C. Fully synchronizes the source and destination data states and stops the current replication session
- D. Fully synchronizes the source and destination data states and reverses the replication direction
Answer: B
Explanation:
Reference: https://www.dell.com/support/manuals/en-pk/powerstore-25-dae/pwrstr-protect-data/replication?
guid=guid-7641aeec-982e-4e4e-85fb-c50f525635db&lang=en-us
NEW QUESTION 37
Which network is used by the PowerStore for communication to the cluster database?
- A. ICM
- B. IDN
- C. ICD
- D. inter-node
Answer: D
NEW QUESTION 38
How is the VASA provider registered with vSphere when connecting to a PowerStore X system?
- A. VASA is unsupported in PowerStore X models
- B. Built into the PowerStore X system code
- C. Manually added from vCenter server using add storage provider option
- D. Automatically added during Initial Configuration
Answer: D
NEW QUESTION 39
An administrator assigns a protection policy to a volume group. Volume1, Volume2, Volume3 are put into the volume group. Later it is decided that Volume2 should be replicated at a different time. Volume2 is removed from the volume group. The administrator attempts to assign a new protection policy to Volume2 and the option is greyed out.
Why is the option greyed out?
- A. Requires a snapshot rule and a replication rule
- B. Still has associated Volume-Group snapshots
- C. Already has a protection policy from the Volume-Group
- D. Requires a replication rule not a protection policy
Answer: B
NEW QUESTION 40
Use the PowerStore Manager simulator to configure the BaseEnclosure-NodeA-IoModule1-FEport0 as a replication port. When you have finished using the simulator, Click Next.
Answer:
Explanation:
Below are the exhibits solution for this simulation.
NEW QUESTION 41
A PowerStore T cluster has 3 appliances. Users are unable to access NAS services. What might be the issue?
- A. Resource balancer service has failed
- B. Trial license is expired
- C. NAS appliance failover is incorrectly configured
- D. Master appliance is off-line
Answer: C
NEW QUESTION 42
What are the IP requirements for ICW on PowerStore X and PowerStore T models?
- A. PowerStore T requires three storage IP addresses and PowerStore X requires five storage IP addresses
- B. PowerStore T requires seven storage IP addresses and PowerStore X requires three storage IP addresses
- C. PowerStore T requires four management IP addresses and PowerStore X requires six management IP addresses
- D. PowerStore T requires five management IP addresses and PowerStore X requires six management IP addresses
Answer: D
NEW QUESTION 43
When planning rack layout, why should base enclosures be grouped together?
- A. Rack weight balance
- B. Hot aisle requirement
- C. Ease of cable management
- D. Power distribution requirements
Answer: D
NEW QUESTION 44
Use the simulator to determine how many logical ports are currently marked for replication on the PowerStore appliance.
Note: It is necessary to close (x) the simulator window before you can select a response to this question.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 45
In a PowerStore T source cluster, create a 100GB volume with name "Prod_vol" and set a protection policy to replicate the volume with RPO 30 minutes to a destination cluster. The destination cluster is already configured. When you have finished using the simulator, click Next.
Answer:
Explanation:
Below are the exhibits solution for this simulation.
NEW QUESTION 46
Which IP addresses are required when adding an appliance to the cluster?
- A. DNS and NTP
- B. Management and Storage
- C. Management and DNS
- D. Storage and NTP
Answer: B
Explanation:
Reference: https://www.dell.com/support/manuals/en-pk/powerstore/pwrstr-ntwk-plang/ip-address- requirements-for-initial-configuration?guid=guid-cdb61296-b698-47fb-92ce-284f784cbc2d&lang=en-us
NEW QUESTION 47
What is the maximum number of snapshot rules per cluster?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 48
Correctly arrange the sequence of the write operation in PowerStore.
Answer:
Explanation:
Explanation
Write Operation
The graphic explains the process when the PowerStore receives a write request.
1: Step 1.
In this example, an I/O enters Node B and is saved within the Node
DRAM memory. The I/O is analyzed to determine:
1. What type of I/O it is.
2. What resource it is intended for.
3. The location within the resource being updated or requested.
4. And other metadata information.
2: Step 2.
If the I/O is determined to be a write, the data is copied into the write cache on the NVRAM drives. After the information is stored within the write cache, the information stored within the DRAM memory is considered clean as it no longer has the latest copy of the information. This data then becomes part of the read cache, until it is later replaced in cache by newer or more highly accessed data.
3: Step 3.
For each write I/O that enters the system, the information is passed
between the Nodes using tokens. This operation updates the peer node that a new write has been received and that it has the newest copy of the data. A token includes information about the I/O such as what resource was updated and the address within the resource that was updated. A token also includes information Data Efficiency about the location the I/O was saved to within the write cache. If the peer Node requests that information, the Node can access the data within the NVRAM drives using its own internal channels.
4: Step 4.
After the information is safely stored on the nonvolatile media of the NVRAM drives and all other actions are complete, the host is acknowledged.
5: Step 5.
After the host is acknowledged, data is copied from the Write Cache and is passed through the deduplication and compression logic. The remaining data is then assembled into 2 MB stripes and saved to the back-end storage.
Reference:
https://www.delltechnologies.com/resources/en-us/asset/white-papers/products/storage/h18151-dell-emc- powerstore-data-efficiencies.pdf
NEW QUESTION 49
A PowerStore T administrator discovers that only one port on each node is active and passing traffic. The other port is healthy and online, but total bandwidth is only half of what the customer expects. Which action could resolve the issue?
- A. Configure Link Aggregation Control Protocol and Dynamic Link Aggregation Group
- B. Configure VLT and Link Aggregation Control Protocol
- C. Implement Dynamic Link Aggregation Group
- D. Implement VLT and Dynamic Link Aggregation Group
Answer: B
Explanation:
Explanation/Reference: https://www.delltechnologies.com/resources/en-us/asset/white-papers/products/storage/ h18157-dell-emc-powerstore-clustering-high-availability.pdf
NEW QUESTION 50
A Storage Administrator removed an appliance from the cluster. What is the status of the removed appliance's licenses?
- A. New licenses are created
- B. No licensing impact
- C. Licenses becomes void
- D. Licenses are erased
Answer: C
NEW QUESTION 51
Which ports are recommended for use as the interconnect between the two Dell supplied Data Switches connected to PowerStore?
- A. Two 25 GbE
- B. Two 100 GigE
- C. Two 10 GigE
- D. Four 1 GbE
Answer: A
Explanation:
Explanation/Reference: https://www.delltechnologies.com/en-us/collaterals/unauth/white-papers/products/storage/ h18241-dell-emc-powerstore-best-practices-guide.pdf (12)
NEW QUESTION 52
What does a Storage Administrator need to consider about Resource Balance when assigning volumes?
- A. Whether the appliance is online
Appliance failure status
Cluster utilization - B. Whether the appliance is offline
Appliance failure status
Capacity utilization - C. Whether the Node is offline
Appliance failure status
Node utilization - D. Whether the Cluster is offline
Node failure status
I/O utilization
Answer: B
Explanation:
Explanation/Reference: https://volumes.blog/2020/05/18/what-is-powerstore-part-11-resource-balancer/
NEW QUESTION 53
Refer to the Exhibit.
A Network administrator is failing to discover a PowerStore T system using the PowerStore Discovery Utility. What might be the issue?
- A. Port 54 has not been set to trunk mode
- B. Discovery network uses only native VLAN
- C. Port 54 needs to be enabled
- D. Dedicated port needs to be used for discovery network
Answer: B
NEW QUESTION 54
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