EMC Implementation Engineer

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A customer is deploying an Exchange 2010 environment on an EMC VNX. There will be 30,000 mailboxes distributed across mailbox servers within a DAG (database availability group) that maintains three database copies. Each user sends approximately 350 messages per day. The customer wants to use 600 GB 15K drives in a RAID 5 group. How many spindles are needed to support the performance required for this Exchange environment?
A. 197
B. 132
C. 158
D. 175

Correct Answer: A
You configure an EMC VNX for iSCSI-attached Linux hosts. The customer’s application generates small, random I/O and the data is frequently re-accessed. The customer has a limited number of flash drives available. Which VNX performance feature would you recommend?
A. FAST Cache

Correct Answer: A
Which part of the VNX initiates failover of a Blade?
B. User
C. Blade
D. Control Station

Correct Answer: C
A customer configures a SAN Copy session. They connect to the destination storage system and select a destination LUN. When they run the SAN Copy session, it fails. What could be a cause of the session failure?
A. SAN Copy ports are not configured.
B. SAN Copy initiators are not configured.
C. VNXs are not in the same domain.
D. LUNs are not the same RAID type.

Correct Answer: A
You are installing a new EMC VNX. All flash drives will be provisioned for FAST Cache. The VNX has the following hardware:
6 DAEs

24 Flash drives

24 SAS drives

24 NL-SAS drives
How should the drives be physically located for better performance and stability?
A. The Flash drives should be placed on DAE0 and DAE1, followed by the SAS drives, and then the NL-SAS drives
B. The SAS drives should be placed on DAE0 and DAE1, followed by the Flash drives, and then the NL-SAS drives.
C. The SAS drives should be placed on DAE0 and DAE1, followed by the NL-SAS drives, and then the Flash drives.
D. The physical location of the drives does not affect the performance of a VNX.

Correct Answer: B
A customer is using MirrorView/S to replicate production data from Site A to Site C. The production Exchange server is located at Site A and has access to LUNs 101 and 102. LUNs 101 and 102 are placed in a consistency group. Site A experiences a disaster and Site C is now production. What configuration change is needed to allow the Exchange server access to Site C’s LUNs 101 and 102?
A. Promote the Secondary Image.
B. Connect the Exchange server to the appropriate storage group.
C. Add the Secondary Image to the appropriate storage group.
D. Fracture the mirror.
Correct Answer: A QUESTION 60
A customer plans to migrate from an EMC CLARiiON to a new EMC VNX. They want to migrate some of the CLARiiON LUNs to thin LUNs on the VNX. Which SAN Copy configuration will allow them to avoid a fully provisioned thin LUN?
A. Push from thin LUN to thin LUN
B. Pull from thin LUN to thin LUN
C. Push from traditional LUN to thin LUN
D. Pull from traditional LUN to thin LUN

Correct Answer: A
A client is planning a virtualized SQL Server environment with remote protection. They need virtual
machine consistent, point-in-time copies of the database as backups.
Which option meets this scenario?

A. Raw Device Map and MirrorView
B. Raw Device Map and VMHA
C. VMFS vDisk and MirrorView
D. VMFS vDisk and VMHA

Correct Answer: D
A customer runs a CAD/CAM application on an EMC VNX for File. The application is accessed by users at multiple sites. The users report degraded response during peak access periods.
Performance monitoring of the file system shows a higher than expected disk queue length and a higher than expected number of unused blocks pre-fetched. What is the likely cause of the performance issue?
A. Multi-threaded sequential reads causing random access patterns
B. Single-threaded sequential reads flooding cache
C. Multi-threaded random reads degrading per-thread performance
D. Single-threaded random reads overutilize pre-fetching

Correct Answer: A
A storage pool used for FAST VP has the following configuration:
Flash drives: 1,000 GB, with 500 GB free SAS drives: 5,000 GB, with 1,500 GB free NL-SAS drives: 19,000 GB, with 3,000 GB free The tiering policy is set to Auto. An additional 250 GB of new data is written to the storage pool. What is the data distribution after the data is written?
A. Flash drives: 475 GB free; SAS drives: 1,425 GB free; NL-SAS drives: 2,850 GB free
B. Flash drives: 250 GB free; SAS drives: 1,000 GB free; NL-SAS drives: 3,000 GB free
C. Flash drives: 500 GB free; SAS drives: 750 GB free; NL-SAS drives: 3,000 GB free
D. Flash drives: 490 GB free; SAS drives: 950 GB free; NL-SAS drives: 2,810 GB free

Correct Answer: A
A VNX storage system has four 15-drive DAEs. There are fifteen flash drives installed in a single DAE. The customer plans to implement traditional LUNs for this configuration. What is recommended SAS LCC port configuration?
A. Distribute flash drives on all odd ports
B. Distribute flash drives on all even ports
C. Distribute flash drives evenly across all ports
D. Distribute flash drives on all ports in a single enclosure

Correct Answer: C
A SAN administrator creates a SAN Copy session between two EMC VNX using Navisphere Secure CLI for a single database LUN. The session starts copying but fails to complete. What is the most likely cause of this failure?
A. The destination LUN is smaller than the source LUN.
B. A host has mounted the LUN on the destination VNX.
C. LUN masking has not been completed.
D. Zoning between the two VNX is incorrect.

Correct Answer: A
A customer uses Replication Manager Version 5 to make replicas of their Windows 2003 server. The customer installs a new Windows 2008 server and tries to mount the replica. The customer reports they cannot mount the replica to the new server. What is the likely issue?
A. Windows 2003 data can only be mounted on Windows 2003 hosts.
B. Replication Manager is not installed on the new server.
C. Replication Manager only supports Windows 2003.
D. Windows 2008 Replication License is installed.

Correct Answer: A
A customer has used the EMC VNX AVM feature to create a number of file systems. There are fourteen RAID 5 (4+1) LUNs presented to AVM as VNX disk volumes. After the file systems are complete, the customer notices that all file systems are built on one 4-element stripe set. What storage pool attribute may have caused this behavior?
A. is_dynamic
B. default_slice_flag
C. is_greedy
D. default_stack_size

Correct Answer: C
You plan to migrate from an EMC CLARiiON to an EMC VNX. The VNX will present CIFS shares to several Windows application hosts.
What tool would you use to test the performance metrics of the CIFS shares on the new VNX prior to the migration?
A. Iometer
B. Perfmon
C. Analyzer
D. Wireshark
Correct Answer: A QUESTION 69
A customer is concerned about performance on their EMC VNX. The VNX provides storage for several Windows and UNIX application servers. By monitoring the switches, they notice heavy traffic between the servers and the VNX. On the VNX, the hard disks seem to be heavily accessed.
The customer wants to know if the operation rate is well balanced between the disk volumes. Which compound server_stats command will provide the needed information?
A. cifsOps-std
B. diskVolumes-std
C. nfsOps-std
D. metaVolumes-std

Correct Answer: B
A customer has three production hosts connected to a VNX. Each host has two 150 GB LUNs in the same RAID 5 (4+1) RAID group. Replication Manager is configured to take SnapView snapshots of the production host LUNs for local backups using a dedicated backup host. The RLP (reserved LUN pool) is configured on the same RAID group as the production host LUNs. The customer reports there are performance slowdowns during backups. What is the best solution?
A. Stop the snapshots, remove the LUNs from the RLP, create a new RAID 5 (4+1) group and new LUNs, and add the new LUNs to the RLP.
B. Expand the source LUN RAID group to a RAID 5 (8+1) RAID group, and expand the sizes of the reserved LUNs to twice their original value.
C. Create a new RAID 5 (4+1) RAID group, create new LUNs on the RAID group, and perform a LUN migration on the RLP LUNs to the new RAID group.
D. Stop the snapshots, create a new RAID 1/0 (2+2) RAID group, create new LUNs on the new RAID group, and migrate the RLP to the new LUNs.

Correct Answer: A
A customer has several legacy servers running different Oracle versions. The legacy servers are not connected to shared storage. The customer wants to consolidate the legacy servers onto one new server to increase manageability, utilize the benefits of shared storage and replicate all database instances to a disaster recovery site.
What Oracle key benefit can be used to accomplish this?
A. OFA with RecoverPoint
B. OFA with SnapView
C. ASM with VNX Replicator
D. ASM with RecoverPoint

Correct Answer: A
You are planning an Exchange 2010 environment. The customer’s environment has 500 users. On average, each each user sends 90 and receives 60 messages daily. The average message size is 150 KB with 30 MB of logs per user per day. The Exchange administrator wants to retain five days of transaction logs. What is the minimum total log volume space that should be planned for?
A. 125 GB
B. 90 GB
C. 225 GB
D. 175 GB

Correct Answer: D
A customer requests a performance review of their EMC VNX before FAST Cache is implemented. You notice a dedicated LUN has a read size of 4 KB, and the disks are performing reads of 4 KB and 16 KB. What is causing this behavior?
A. Coalescing
B. Pre-fetching
C. Flushing
D. Promotion

Correct Answer: B
A customer plans to migrate from a legacy IBM storage array with a new EMC VNX. Hosts connected to the legacy array are critical to the business and availability is the customer’s number one priority. Which do you recommend the customer use to migrate to VNX?
A. Open Migrator
B. SAN Copy
C. VNX Replicator
D. Replication Manager

Correct Answer: A
A customer is implementing a DR solution for their CIFS file systems in an EMC VNX for File environment. The customer must ensure all configuration settings are available on the secondary site, in case of a disaster. Which VNX features need to be configured to meet the customer’s DR requirements?
A. CIFS, Usermapper and Replicator
B. CIFS, VDMs and Replicator
C. VDMs, Replicator and CAVA
D. CIFS, CAVA and Replicator

Correct Answer: B
A customer runs Replication Manager on several VNX systems. They are concerned the replication
process for the target LUNs is taking longer than anticipated.
Which action should be taken?

A. Verify that the clone synchronization rate for each VNX array in your replication environment is set to High.
B. On the Advanced Replication Settings panel, set the version of the “Replica to be Replicated” field and select Most Recent.
C. On the Advanced Replication settings panel, set the version of the “Replica to be Replicated” field and select Oldest.
D. Select Details to see the log details generated during the job simulation.

Correct Answer: A
A customer is implementing ESXi 5.0 into their heterogeneous environment. Due to separation of duties, the networking and virtualization team must work together to minimize the risk of downtime due to misconfiguration. What ESXi feature can be implemented into the existing switch infrastructure to ease

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