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EMC Symmetrix Solutions Expert Exam for Technology Architects Sample Questions:

1. You are planning a migration for 20 VMware ESXi 5.0 servers from a DMX-4 to a new EMC VMAX array. Each server uses VMFS volumes and hosts more than 50 VMs. The customer reports their environment workload tends to be low outside of normal business hours but their service level agreement only permits one 4-hour offline window per quarter. Which tool do you recommend be used to migrate the ESXi servers to the VMAX?

A) Storage vMotion
B) SRDF
C) Open Replicator
D) Open Migrator

2. A customer is using Replication Manager to make local TimeFinder/Clone backups of their Exchange 2010 environment. The customer reconfigured the Exchange environment to place the logs on the L:\ drive and mount the database on L:\SG1DB1. They updated the associated Replication Manager replica job to reflect the change. The customer reports the mount of the database to the backup server now fails. What do you advise the customer?

A) Nested mount points are not supported with Replication Manager.
B) The database replica must be part of the same replica job as the logs.
C) A separate application set must be configured for the database.
D) Additional clone targets need to be added to the storage pool.

3. A new data warehouse will be hosted on an existing 4-engine VMAX array. The database server has 4 HBAs connected at 8Gb/s. Due to limited SAN switch ports only port 0 on each VMAX FA is connected - also at 8Gb/s.
The workload is expected to require at least 1700MB/s of reads @ 128KB I/O size. It must maintain performance in case of any major component failure in the host, switch or array. Assume that the existing workload on the VMAX does not exceed 350MB/s per port. Also assume that the ports can sustain up to 500MB/s without exceeding 70% utilization.
What is the best practice HBA to FA mapping to ensure the required performance of the data warehouse?

A) HBA0 -> E1 FA ports HBA1 -> F1 FA ports HBA2 -> G1 FA ports HBA3 -> H1 FA ports
B) HBA0 -> Engine 3 FA ports HBA1 -> Engine 4 FA ports HBA2 -> Engine 5 FA ports HBA3 -> Engine 6 FA ports
C) HBA0 -> FA 7e0, 8e0, 9e0, 10e0 HBA1-> FA 5e0, 6e0, 11e0, 12e0 HBA0 -> FA 7h0, 8h0, 9h0, 10h0 HBA1-> FA 5h0, 6h0, 11h0, 12h0
D) HBA0 -> E0 FA ports HBA1 -> F0 FA ports HBA2 -> G0 FA ports HBA3 -> H0 FA ports

4. A customer reports their hosts are performing slowly after migration to a new VMAX array.
You review performance data from the VMAX and note the following:
-I/O sizes are 16 KB.
-The front-end director ports are operating at 1 GB auto-negotiate.
-Several front-end director ports are approaching 100% utilization.
-A few director ports show little or no utilization.
What do you advise the customer?

A) Rebalance the hosts across all available FA ports and consider setting the front-end director ports to 2 GB or higher.
B) Add more HBAs to each host accessing the VMAX and consider setting the host I/O size to 8 KB or less.
C) Rebalance the hosts across all available FA ports and consider upgrading the SAN switch ports to 2 GB or higher.
D) Reduce the number of hosts that are accessing the VMAX and consider implementing iSCSI connectivity.

5. A customer implemented an Oracle application on a VMAX with a mix of Enterprise Flash Drives (EFD) and FC 15K drives. EFD are configured in RAID 5 and FC 15K both in RAID 5 and RAID 1. The application is random read intensive. The customer has decided to place a portion of the database in each tier.
Which Oracle database files are suitable to be placed on EFD drives?

A) Archive logs
B) Data files
C) Redo logs
D) Temp file

Solutions: