DELL STORAGE Exam
D-PVM-DS-23 Questions V9.03
Dell Storage
Topics - Dell PowerMax and
VMAX Family Solutions Design
2023
1.A storage administrator uses Unisphere for PowerMax to provision new storage
from a VMAX All Flash array.
Which Workload Type is recommended for a combination of small and large block I/O
workloads?
A. DSS
B. Optimized
C. OLTP
D. None
Answer: B
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2.Match each SnapVX term to its description.
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Answer:
3.An architect uses the following command to collect data from a host when designing
a solution in BCSD:
iostat Cd Cx Ct interval count >> hostname.iostat.date.txt
What does the -x flag in the command represent?
A. Expanded format
B. Exclude space characters
C. Extended format
D. XML format
Answer: C
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4.How do Copy mode linked targets and NoCopy mode linked targets behave when a
SnapVX unlink operation disassociates the linked target?
A. Once the copy completes, Copy mode linked targets do not contain a full and
usable copy of the source devices.
Behavior of NoCopy mode linked targets depends on the operating system running on
the array. PowerMaxOS 5978 and HYPERMAX OS 5977.810.184 and later allow
access to unlinked targets.
B. Once the copy completes, Copy mode linked targets contain a full and usable copy
of the source devices.
Behavior of NoCopy mode linked targets depends on the operating system running on
the array. PowerMaxOS 5978 and HYPERMAX OS 5977.596.583 and later allow
access to unlinked targets.
C. Once the copy completes, Copy mode linked targets contain a full and usable copy
of the source devices.
Behavior of NoCopy mode linked targets depends on the operating system running on
the array. PowerMaxOS 5978 and HYPERMAX OS 5977.810.184 and later allow
access to unlinked targets.
D. Once the copy completes, Copy mode linked targets will contain a full and usable
copy of the source devices.
NoCopy mode linked targets will not allow access to unlinked targets.
Answer: B
5.Which PowerMax initially ordered configuration provides the fewest available slots
for front-end I/O modules per engine?
A. PowerMax 2000 dual-engine
B. PowerMax 8000 multi-engine
C. PowerMax 2000 single-engine
D. PowerMax 8000 single-engine
Answer: C
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7.By what percentage is SRDF throughput improved by SiRT?
A. 10%
B. 20%
C. 30%
D. 40%
Answer: B
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6.An administrator is managing historical performance data retention in Unisphere for
PowerMax.
Which unit of time is associated with the numerical value they specify for the retention
period?
A. Months
B. Hours
C. Days
D. Weeks
Answer: C
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8.What is the best practice sizing guideline for front-end FA utilization on a single
engine PowerMax array?
A. 0.5
B. 0.7
C. 0.8
D. 0.6
Answer: C
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9.What is the maximum number of BTP files that can be included in a project in
Sizer?
A. 40
B. 30
C. 10
D. 20
Answer: D
10.What is the best practice sizing guideline for front-end FA utilization on a twoengine PowerMax array?
A. 0.5
B. 0.6
C. 0.7
D. 0.8
Answer: C
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11.In a legacy SRDF/A mode, the delta sets are numbered as follows:
Capture: N, Transmit: N-1, Receive: N-1, Apply: N-2
What is the number of the Transmit Delta Set after the second cycle switch?
A. N+2
B. N
C. N-1
D. N+1
Answer: D
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12.Which of the following is TRUE about a COMMIT statement executed at the end of
the T1 unit of work?
A. A ROLLBACK command executed just after the COMMIT command cancels that
COMMIT
B. Save points defined during transaction T1 are released only if there is a RELEASE
SAVEPOINT command executed after the COMMIT command
C. It finishes the current T1 unit of work and a new one is initiated, however it is
possible to ROLLBACK to the latest SAVEPOINT before COMMIT
D. It finishes the current T1 unit of work and a new one is initiated. All changes made
by UPDATE and DELETE commands during unit of work T1 are committed
Answer: D
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13.A PowerMax parent Storage Group (SG) contains two child SGs: SG1 and SG2.
What is a valid Host I/O bandwidth limit setting for this configuration?
A. Parent SG: 500
SG1: NOLIMIT
SG2: 1000
B. Parent SG: 400
SG1: 500
SG2: NOLIMIT
C. Parent SG: 400
SG1: 500
SG2: 200
D. Parent SG: 500
SG1: 500
SG2: 400
Answer: D
14.The Output file of a linux host collection utility does not match the BCSD parser
format. what could be the reason?
A. Incorrect LUNs specified
B. Perform is not up to date
C. BSCD is incorrectly configured
D. OS patches are not up to date
Answer: C
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15.The SecurityAdmin for Unisphere wants to create a new user that will perform all
management (active or control) operations on a storage system and be able to modify
GNS group definitions in addition to all Monitor operations. The user will not be able
to create or delete user accounts.
What role needs to be assigned to the new user?
A. StorageAdmin
B. SecurityAdmin
C. Device Management
D. Admin
Answer: A
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16.SRDF/A has been enabled between two PowerMax arrays. Due to a loss of all
RDF links, the SRDF/A session has been placed in a Transmit Idle state.
What happens to cycle switching and the delta sets?
A. Cycle switching continues; Capture Delta Set count grows
B. Cycle switching stops; Transmit Delta Set count grows
C. Cycle switching stops; Capture Delta Set count grows
D. Cycle switching continues; Transmit Delta Set count grows
Answer: B
17.A script has been designed to create a snapshot using the following command:
symsnapvx -sid <> -sg snapvx_sg establish -name secure_backup -secure -delta
3:23 -nop
What is a consideration about the snapshot?
A. Can be terminated using the -force flag
B. Is permanent and cannot be terminated
C. Cannot be terminated after 3 days and 23 hours
D. Can be terminated only after 3 days and 23 hours
Answer: D
18.An application workload is 20 MB/s and the Transmit Delta Set has 600 MB of data
from the previous cycle. The cycle time for the current cycle will be 60 seconds.
How much data can be filled in the Capture Delta Set in these 60 seconds?
A. 600 MB
B. 1200 MB
C. 2400 MB
D. 3600 MB
Answer: B
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19.Which formats are supported for performance data exports in Unisphere for a
PowerMax array?
A. XML, CSV, UPV, and TTP
B. XML, CSV, and UPV only
C. XML, CSV, and BTP only
D. XML, CSV, BTP, and UPV
Answer: D
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20.When adding device pairs to an SRDF/Metro configuration using the -exempt
option, what prevents a device pair from being added?
A. R2 device is larger than the R1 device
B. Source group and device pair are in SRDF/S mode
C. R1 device is the source of a TimeFinder data copy
D. Source group and device pair are in SRDF/Adaptive Copy mode
Answer: A
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21.Consider the following sequence of events:
- Eddie grants SELECT WITH GRANT OPTION privilege to Mike.
- Mike grants SELECT privilege to Jeff.
- Eddie revokes SELECT privilege from Mike.
What will happen to Jeff’s SELECT privilege?
A. Jeff’s SELECT privilege will be revoked
B. Jeff’s SELECT privilege will be revoked
C. Jeff’s SELECT privilege will be retained only if he has ACCESSCTRL authority
D. Jeff’s SELECT privilege will be retained only if Eddie has ACCESSCTRL authority
Answer: A
22.Match each management tool to its function.
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Answer:
23.A storage administrator is unable to terminate the TimeFinder SnapVX snapshot.
What action should be performed by the administrator?
A. Modify the Time to Live setting
B. Verify that there are no linked targets or restore sessions
C. Check if there is an available reserved capacity
D. Run a terminate command for each individual LUN
Answer: B
24.What is the maximum number of Bricks and drives that can be configured in a
VMAX 950?
A. 2 Bricks and 100 drives
B. 8 Bricks and 288 drives
C. 2 Bricks and 96 drives
D. 8 Bricks and 1920 drives
Answer: D
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25.At a disaster planning meeting, an architect is presented with the following facts by
a client:
A Unix host is replicating storage from a Production PowerMax to a VMAX 250FX.
RDF pairs have been split with Production and DR hosts accessing their respective
storage.
Invalid tracks have started to build against PowerMax and VMAX 250FX.
The client now wants to bring production back to PowerMax, discarding the VMAX
250FX updates while keeping the updates on the PowerMax.
What is the correct action to take?
A. Establish
B. Failover
C. Resume
D. Failback
Answer: D
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26.Which product allows for local protection for Z Systems?
A. TimeFinder SnapVX
B. PowerProtect
C. AppSync
D. RecoverPoint
Answer: A
27.Open Replicator is being used to copy data from a VNX to a PowerMax. During
the migration, users experience latency when accessing the storage from the VNX.
What can be done to address the issue?
A. Reduce Pace and Ceiling Value
B. Set Pace to 0 and Ceiling to 50%
C. Reduce Ceiling Value
D. Nothing, because copying has started
Answer: A
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28.A PowerMax Storage Group has Host I/O limits set at 10000 IOPS. The Port
Group contains four ports across different directors. The Dynamic Distribution is set to
OnFailure.
What is the maximum IOPS the Storage Group can achieve in the event a switch port
being used by one of the director ports fails but the director remains online?
A. 2500
B. 5000
C. 7500
D. 10000
Answer: D
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29.What is the default HTTPS port assignment for communication of VSI/IAPI
requests sent to REST API of Unisphere for PowerMax?
A. 5441
B. 5443
C. 8441
D. 8443
Answer: D
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30.A storage architect is planning a Unisphere upgrade.
Which password is required for the upgrade?
A. lockbox
B. root
C. sysadmin
D. boxmgmt
Answer: B
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31.What action can an administrator perform on a PowerMax using VSI?
A. View capacity utilization
B. Manage re-syncing objects
C. View replication sessions
D. Manage High Availability
Answer: A
32.An architect is configuring BCSD to design SRDF/S between two new PowerMax
arrays. The architect has completed the tasks for the local side of the solution,
including RA Port Group, Replication Group, and site switch.
What is the correct order of steps the architect needs to take to complete the SRDF
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setup?
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Answer:
33.A storage administrator has mounted a snapshot of an existing datastore to the
ESXi server and decided to keep its existing signature.
What action is prevented by keeping the existing signature?
A. Increasing the datastore size
B. Replicating the datastore
C. Modifying the datastore configuration
D. Restoring the datastore
Answer: D
34.What types of files are supported for import into Sizer?
A. TTP, DCF, CSV, and configuration files
B. TTP, CSV, and configuration files only
C. BTP, DCF, CSV, and configuration files
D. BTP, DCF, and configuration files only
Answer: C
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35.In what format can loaded and mapped BCSD performance data be exported?
A. DOC
B. XML
C. CSV
D. PFD
Answer: C
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36.A PowerMax customer has an existing Masking View for a large database
environment. The parent Storage Group in this Masking View has three child Storage
Groups with different Service Levels (SLs). The customer has been experiencing
some database performance issues and wants to set the SL to Platinum for all the
devices.
When the storage administrator attempts to set the SL on the parent Storage Group,
they receive an error and the operation fails.
What is the cause of the error?
A. There is insufficient capacity in the Storage Resource Pool
B. A child Storage Group already has the Platinum SL applied
C. SLs cannot be set on parent Storage Groups
D. Platinum SL is not available for Cascaded Storage Groups
Answer: C
37.What needs to be created in BCSD to link multiple SRDF/A sessions?
A. Composite Group
B. Logical relationship
C. Consistency Group
D. MSC logical relationship
Answer: C
38.What action is required on a PowerMax thin device before it can be deleted?
A. Unmap from front-end ports
B. Remove from Storage Group
C. Set to Write Disable
D. Set to Not Ready
Answer: B
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39.What action is required before performing a restore operation from a TimeFinder
SnapVX snapshot?
A. Copy the snapshot
B. Remount the production volume
C. Unmount the production volume
D. Terminate the snapshot
Answer: C
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40.When implementing SRDF/Metro with Array Witness, what is a requirement of the
witness array?
A. vApp running on a VMware ESXi server
B. Empty RDF group from witness to source and target
C. Two RDF groups with source and target devices
D. Minimum of two witness arrays
Answer: A
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