100% Free Real Updated DEE-1111 Questions & Answers Pass Your Exam Easily
Easily To Pass New DEE-1111 Verified & Correct Answers
NEW QUESTION # 32
A storage administrator is investigating non-linear variations in throughput when zoning additional hosts to certain front-end adapters. They notice a certain performance characteristic having 10 identical hosts zoned to the same FA ports. After adding the 11th host, the throughput sometimes drops more than 20%.
What is the most likely cause of this behavior?
- A. Average disk queue length on the hosts exceed 3
- B. System Write Pending > 75%
- C. QFULL responses of the FA ports
- D. I/O sizes over 128 KiB are being used on the hosts
Answer: C
Explanation:
The most likely cause of this behavior is QFULL responses of the FA ports. When additional hosts are zoned to certain front-end adapters, the FA ports may not be able to handle the increased I/O requests, resulting in QFULL responses. This can cause non-linear variations in throughput and sometimes a drop in throughput of more than 20%. Reference: Dell EMC PowerMax: Service Levels for PowerMaxOS
NEW QUESTION # 33
A disaster occurred at the workload site of an SRDF/Star configuration. The administrator decides to move the workload to the Synchronous site (Site B).
What symstar command should be used before the workload switch?
- A. cleanup
- B. disable
- C. unpFOlecl
- D. halt
Answer: D
Explanation:
The symstar halt command is used to write disable devices and synchronize SRDF data to remote sites in an SRDF/Star configuration. This command ensures that all sites have a consistent copy of data before switching the workload site from one site to another. Therefore, the symstar halt command should be used before the workload switch in case of a disaster at the workload site of an SRDF/Star configuration1
NEW QUESTION # 34
SRDF/Metro is deployed in a clustered host configuration. The RDF link state is partitioned, and the R1 side has full read/write capability to the application.
What is the state of the R2 device?
- A. Goes Not Ready to the host
- B. Has full read/write capability to the application
- C. Has only read capability to the application
- D. Bias is applied
Answer: B
Explanation:
In a SRDF/Metro deployment in a clustered host configuration, when the RDF link state is partitioned and the R1 side has full read/write capability to the application, the R2 device also has full read/write capability to the application. With SRDF/Metro, both R1 and R2 devices may then appear as a single virtual device across the two SRDF paired arrays for host presentation. With both the R1 and R2 devices being accessible, the host or hosts (in the case of a cluster) can read and write to both R1 and R2 devices with SRDF/Metro ensuring that each copy remains current, consistent, and addressing any write conflicts which may occur between the paired SRDF devices23. Reference: Dell EMC PowerMax and VMAX All Flash: SRDF/Metro Overview and Best Practices, Deploying Dell EMC SRDF/Metro Smart DR with Microsoft SQL Server for Physical and Virtual Environments
NEW QUESTION # 35
An administrator implemented SYMACLs on a PowerMax using host-based Access IDs. The administrator is no longer able to run SYMCLI commands against the volumes belonging to a host.
What is a possible reason for this issue?
- A. Host network interface card was replaced
- B. SYMAPI options file was manually modified with the wrong host ID.
- C. symacl -unique -passphrase was run using a different passphrase
- D. The disks the volumes were on were replaced
Answer: B
Explanation:
If an administrator implemented SYMACLs on a PowerMax using host-based Access IDs and is no longer able to run SYMCLI commands against the volumes belonging to a host, one possible reason could be that the SYMAPI options file was manually modified with the wrong host ID. The SYMAPI options file contains configuration settings for Solutions Enabler, including host IDs for access control. If this file is incorrectly modified, it could prevent the administrator from running SYMCLI commands against certain volumes34. Reference: Dell EMC PowerMax and VMAX All Flash: Embedded Management, Role Based Access Control on PowerMax - Storage Intelligence
NEW QUESTION # 36
Refer to the exhibit.
PowerMax A has a current utilization of 10%, and PowerMax B has a current utilization of 70%.
What will the response times be for systems A and B if utilization increases by 10%?
- A. A=10, B=40
- B. B=40, A=10
- C. A=15, B=50
- D. B=15.A=15
Answer: A
Explanation:
If utilization increases by 10% for both systems A and B, where system A has a current utilization of 10% and system B has a current utilization of 70%, the response times for systems A and B would not necessarily increase linearly with utilization. The exact impact on response times would depend on various factors including workload characteristics, system configuration, and resource contention among others34. However, without specific details on these factors, it's not possible to provide an accurate prediction for the new response times. Reference: PowerMax and VMAX All Flash: Storage Resource Pool (SRP) Effective Used Capacity threshold alert, Service levels and eNAS | Dell EMC PowerMax and VMAX All Flash: eNAS Best Practices
NEW QUESTION # 37
An application owner is experiencing performance issues for their application. Unisphere for PowerMax is showing the storage group is compliant with the current Service Level.
How should the performance issue be addressed?
- A. Redistribute the application to other front-end host ports on different directors
- B. Adjust the Service Level to a higher level of service
- C. Adjust the Service Level to a lower level of service
- D. Redistribute the application to other front-end host ports on the same directors
Answer: A
Explanation:
An application owner is experiencing performance issues for their application. Unisphere for PowerMax is showing the storage group is compliant with the current Service Level. This means that the performance issue is not caused by the storage system, but by some other factor in the environment, such as network congestion, host configuration, or application workload. One possible way to address the performance issue is to redistribute the application to other front-end host ports on different directors. This can help balance the workload across multiple paths and avoid potential bottlenecks or contention on a single port or director. Unisphere for PowerMax provides a Performance Plan feature that can analyze the current configuration and suggest optimal port allocation for each storage group based on historical data and best practices.
Reference:
Understanding Performance Management
Dell EMC PowerMaxOS Performance Guide
NEW QUESTION # 38
Refer to exhibit.
Refer to the exhibit.
Which correctly describes a possible configuration created by SYMACL?
- A. Physical hosts that are part of EmcMgmtGrp group
- B. Only BASECNTROL access type
- C. Only ADMINRD access type
- D. Hosts that are part of AdminGrp proup
Answer: D
Explanation:
The symauth command is used to manage user authorization for SYMCLI commands. The exhibit shows the output of the symauth -list command, which displays the user groups and access types defined for SYMCLI commands. The output shows that there are two user groups: AdminGrp and EmcMgmtGrp. The AdminGrp group has ADMINRD access type, which means that users in this group can run any SYMCLI command with read-only access. The EmcMgmtGrp group has BASECONTROL access type, which means that users in this group can run only a subset of SYMCLI commands with read/write access. Therefore, the correct description of a possible configuration created by SYMACL is hosts that are part of AdminGrp group2
NEW QUESTION # 39
Which is correct about Unisphere for PowerMax and Solutions Enabler permission management?
- A. Unisphere and Solutions Enabler permission information is maintained in separate symauth databases.
- B. Unisphere and Solutions Enabler have authorization checking disabled by default
- C. Unisphere has a more explicit authentication mechanism for users Solutions Enabler uses the operating system user credentials
- D. Unisphere can assign a maximum of two roles per user Solutions Enabler can assign up to four roles per user
Answer: C
Explanation:
Unisphere for PowerMax and Solutions Enabler have different ways of managing user permissions. Unisphere has a more explicit authentication mechanism for users, where each user must have a username and password to log in to the Unisphere interface. Unisphere also supports role-based access control (RBAC), where each user can be assigned one or more roles that define their level of access to the storage system resources and operations. Unisphere maintains the user and role information in a symauth database, which can be shared with Solutions Enabler. Solutions Enabler, on the other hand, uses the operating system user credentials to authenticate users. Solutions Enabler does not require users to have a username and password to run commands, but it checks the symauth database to verify if the user has the appropriate role to perform the requested operation. Solutions Enabler also supports RBAC, where each user can be assigned up to four roles that define their level of access to the storage system resources and operations.
Reference:
Unisphere for PowerMax User Management
Solutions Enabler User Management
NEW QUESTION # 40
NDM is being used to migrate some Windows hosts to a new PowerMax. The client doesn't want the migration target volumes to retain the source volume external device identity following the migration.
What should be used to complete the migration and address the client's concern?
- A. NDM pass-through mode
- B. NDM cancel revert function
- C. NDM Updates feature
- D. NDM metro-based mode
Answer: C
Explanation:
The NDM Updates feature should be used to complete the migration and address the client's concern. The NDM Updates feature is designed to help automate the process of moving applications across arrays requiring a short application downtime. It allows application migration from a VMAX (5876) array to a VMAX3 (5977), VMAX All Flash (5978), or PowerMax (5978) array1. It supports pre-sync data between arrays and then schedule downtime to do the cutover1. Reference: Dell EMC PowerMax and VMAX: Non-Disruptive Migration Best Practices and Operational Guide
NEW QUESTION # 41
An SRDF/Metro device pair was in an ActiveActive state. A link failure between arrays occurs. The application continues running on the R1 side, and the link failure is addressed.
What is the current state of the Metro device pair?
- A. Partitioned
- B. Active Bias
- C. Active Active
- D. Suspended
Answer: B
Explanation:
An SRDF/Metro device pair was in an ActiveActive state, meaning that both the R1 and R2 devices were read/write accessible to the host or hosts. A link failure between arrays occurs, causing the device pair to become Not Ready (NR) on the SRDF link. SRDF/Metro responds by making the non-biased or R2 paired device inaccessible (not ready) to the host or host cluster, while keeping the biased or R1 paired device accessible (ready). This ensures that there is no data inconsistency or split-brain scenario between the two sites. The device pair enters an Active Bias state, which indicates that only one side of the pair is active and has a bias attribute set. The bias attribute determines which side of the pair remains accessible in case of a link failure. By default, the bias is set to the R1 side of the pair, but it can be changed using the symrdf set bias command. The application continues running on the R1 side, and the link failure is addressed. Once the link is restored, the device pair resumes the ActiveActive state and both devices become accessible again.
Reference:
SRDF/Metro overview
VMware vSphere Metro Storage Cluster (vMSC) with Dell PowerMax and Dell EMC VMAX SRDF/Metro Understanding bias
NEW QUESTION # 42
If the host is cross connected in an SRDF/Metro configuration, what happens if the R2 device becomes Not Ready?
- A. Read-only access is available to both devices
- B. Continues to have read/write access to the R1 device
- C. Loses read/write access to both devices
- D. Read-only access is available to only the R1 device
Answer: B
Explanation:
In an SRDF/Metro configuration, if the host is cross-connected and the R2 device becomes Not Ready, the host continues to have read/write access to the R1 device12. This is because SRDF/Metro is designed to provide high availability and continuous data access. If one device becomes inaccessible, the host can still access the other device12. Reference: SRDF/Metro | SAP Landscape Consolidation with Dell Components, Understanding bias | Dell EMC PowerMax and VMAX All Flash: SRDF/Metro Overview and Best Practices
NEW QUESTION # 43
Which external storage can be connected to PowerMax using DX emulation?
- A. PowerStore
- B. Compellent
- C. Data Domain
- D. Unity
Answer: C
Explanation:
Data Domain is the only external storage that can be connected to PowerMax using DX emulation. DX emulation is a specialized back-end DA emulation that handles SAN attached disks. DX directors are configured on existing PowerMax front-end Fibre Channel ports and are required to be implemented in pairs for high availability. DX emulation is used to support ProtectPoint technology, which integrates primary storage with Data Domain protection storage to accelerate backup and recovery. Therefore, answer A is correct1.
B, C, and D are incorrect because they are not external storage that can be connected to PowerMax using DX emulation. Unity (B), PowerStore , and Compellent (D) are primary storage arrays that do not support ProtectPoint technology or DX emulation.
NEW QUESTION # 44
An administrator is configuring SYMACL on a PowerMax array.
What are possible ways to get a unique ID for a host system?
- A. Derived from SAN domain ID Derived from local disk configuration
- B. Derived from storage array hardware configuration From a passphrase
- C. Derived from host hardware configuration Randomly generated
- D. Derived from host-based passphrase Randomly generated by Solutions Enabler lockbox file
Answer: D
Explanation:
The SYMACL unique ID for a host system can be obtained in two ways: derived from a host-based passphrase or randomly generated by the Solutions Enabler lockbox file. The host-based passphrase is a string that the user can specify to generate a unique ID for the host. The passphrase can be entered interactively using the symacl -unique -passphrase command, or stored in a file and passed as an argument using the symacl -unique -passphrase -file command. The Solutions Enabler lockbox file is a secure file that stores encryption keys and other sensitive information. The lockbox file can also generate a random unique ID for the host using the symacl -unique command. The lockbox file must be created and initialized before using this method.
Reference:
symacl -unique : Unable to obtain unique ID for host - Dell
EMC - Symmetrix Access Control - symacl | SANSPIRE
How to identify hostname and host ID for license generation
NEW QUESTION # 45
Refer to exhibit.
The RDF-ECA timer has expired.
What is the state of all the RDF links?
- A. split
- B. failed over
- C. suspend
- D. online
Answer: C
Explanation:
When the RDF-ECA timer expires, all RDF links will be in a 'Suspend' state. This is because the RDF-ECA timer is used to control how long SRDF waits for an acknowledgement from the remote array before it suspends the link. If an acknowledgement is not received within this time, SRDF assumes that there is a problem with the link or remote array and suspends the link to prevent data loss or corruption.
NEW QUESTION # 46
What is the minimum number of samples that must be collected via a single Real Time Trace collection process in Unisphere for PowerMax?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
Explanation:
The minimum number of samples that must be collected via a single Real Time Trace collection process in Unisphere for PowerMax is 1040. This is because the Real Time Trace feature allows the user to collect performance data at 30-second intervals for up to 8 hours, which results in 1040 samples (8 x 60 x 60 / 30 = 1040). The Real Time Trace feature can be used to monitor the performance of storage groups, directors, ports, or devices at a granular level and identify any potential issues or bottlenecks.
Reference:
PowerMax Real Time SG Monitoring in Unisphere 9 0
VMAX Performance Troubleshooting with Unisphere - Run a real time trace at the system level
NEW QUESTION # 47
Alerts are required to track high I/O response times for a specific storage group. I/O Response times greater than 10 ms require next day analysis. I/O response times greater than 15 ms require immediate intervention.
Which alert settings are required?
- A. 1st level - Warning, 10 ms 2nd level - Critical, 15 ms
- B. 1st level - Informational, 10 ms. 2nd level - Warning, 15 ms
- C. 1st level - informational, 9 ms 2nd level - Warning, 14 ms
- D. 1st level-Warning, 11 ms 2nd level - Critical, 16 ms
Answer: A
Explanation:
The alert settings required are a first level warning at 10 ms and a second level critical alert at 15 ms. These settings will ensure that high I/O response times for a specific storage group are tracked and appropriate actions are taken when the response times exceed the specified thresholds. Reference: Dell EMC PowerMax: Service Levels for PowerMaxOS
NEW QUESTION # 48
An application server has the following data characteristics:
80% of the I/O is generated with 8 KB random small blocks
20% of the I/O is generated with 64 KB sequential large blocks
50% of all I/O is a write
What workload profile do these data characteristics represent?
- A. RWM
- B. DCS
- C. RRH
- D. OLTP
Answer: D
Explanation:
The data characteristics represent an Online Transaction Processing (OLTP) workload profile. OLTP workloads typically consist of a high percentage of small, random I/O operations2. In this case, 80% of the I/O is generated with 8 KB random small blocks, which is characteristic of OLTP workloads2. Reference: Use DISKSPD to test workload storage performance - Azure Stack HCI | Microsoft Learn
NEW QUESTION # 49
Refer to exhibit.
Refer to the exhibit.
SRDF device pairs are suspended by the administrator.
Which symrdf command was issued next?
- A. svmdrfhalf swap
- B. symrdf swap
- C. symrdf set bias
- D. svmrdf split
Answer: D
Explanation:
The symrdf split command is used to suspend SRDF/A replication and make both R1 and R2 devices read/write enabled. This is useful for testing purposes or for creating point-in-time copies of data on both sides. The symrdf establish command can be used to resume SRDF/A replication after a split operation. The exhibit shows that both R1 and R2 devices are read/write enabled and have a Split status, which indicates that a symrdf split command was issued next2
NEW QUESTION # 50
Which metrics are recommended to start analyzing the overall efficiency of the array due to cache?
- A. % Reads and Host MBs Read/sec
- B. %Cache WP and % Reads
- C. Array-level % Hit and % Cache WP
- D. Cache Balance and Array-level % Hit
Answer: C
Explanation:
The metrics that are recommended to start analyzing the overall efficiency of the array due to cache are array-level % Hit and % Cache WP. The array-level % Hit metric shows the percentage of read requests that are satisfied from the cache memory, without accessing the physical disks. A high % Hit value indicates that the cache is effective in reducing the read latency and improving the performance. The % Cache WP metric shows the percentage of cache memory that is occupied by write pending data, which is data that has been written to the cache but not yet destaged to the physical disks. A high % Cache WP value indicates that the cache is under pressure and may not have enough space to accommodate new write requests, which can lead to performance degradation. By monitoring these two metrics, a storage administrator can evaluate the overall efficiency of the array due to cache and identify any potential issues or bottlenecks.
Reference:
System efficiency overview | Dell PowerMax: Data Reduction | Dell Technologies Info Hub Metrics (PowerMax & VMAX) - VMware Docs Dell EMC PowerMax storage Replication cache | Dell EMC PowerMax and VMAX All Flash: TimeFinder SnapVX Local Replication
NEW QUESTION # 51
......
Free DEE-1111 Exam Files Downloaded Instantly: https://www.vce4plus.com/EMC/DEE-1111-valid-vce-dumps.html
Verified & Latest DEE-1111 Dump Q&As with Correct Answers: https://drive.google.com/open?id=1iWNTIutNr7HCx8u9wTuKwQmBhgJzsRuL