EMC Implementation Engineer E20-885 Questions & Answers

• Question 91:

  A Storage Administrator would like to use MVM to create file systems for an application that requires exclusive access to the underlying drives. Another requirement is to distribute the load across as many drives as possible.

  Which volume configuration is suitable for this type of application?

  A. disk > stripe > meta

  B. disk > meta

  C. disk > stripe > slice > meta

  D. disk > slice > stripe > meta

  Correct Answer: A

• Question 92:

  A Storage Administrator would like to use Manual Volume Management to create file systems for their Oracle database log files.

  Which volume configuration is suitable for storing log information?

  A. disk > meta

  B. disk > stripe > meta

  C. disk > stripe > slice > meta

  D. disk > slice > stripe > meta

  Correct Answer: A

• Question 93:

  You are installing a new VNX and need to implement a Storage Pool on the array. Disks are available and must be set up as follows: 10, 400 GB SSD in R10 (4+4) for the Extreme Performance tier 13, 600 GB + 15K SAS R10 (4+4) for the Performance tier 12, 4 TB NL-SAS R6 (14+2) for the Capacity tier

  Disks for FAST Cache, Vault, and unbound disks for sparing, are allocated separately.

  How should you lay out the private RAID groups?

  A. Extreme Performance tier: 1 R10 (4+4) +1 R10 (1+1) Performance tier: 2 R5 (4+1) + 1 R5 (2+1) Capacity tier: 1 R6 (10+2)

  B. Extreme Performance tier: 1 R10 (5+5) + 2 unbound Performance tier: 2 R5 (4+1) + 1 R5 (2+1) Capacity tier: 1 R6 (10+2)

  C. Extreme Performance tier: 1 R10 (4+4) + 1 R10 (1+1) Performance tier: 2 R5 (4+1) + 1 R5 (2+1) Capacity tier: 1 R6 (4+2) + 1 R6 (4+2)

  D. Extreme Performance tier: 1 R10 (4+4) + 2 unbound Performance tier: 2 R5 (4+1) + 1 R5 (2+1) Capacity tier: 1 R6 (4+2) + 1 R6 (4+2)

  Correct Answer: A

• Question 94:

  A customer has a highly active ordering application with a R/W ratio of 2:1. The application peaks at about 16,000 application IOPS during the day.

  What is the minimum required number of eMLC Flash drives and 10K rpm SAS drives needed in a R5 Storage Pool to meet the performance requirements?

  A. 80 SAS drives, 5 Flash drives

  B. 95 SAS drives, 5 Flash drives

  C. 140 SAS drives, 5 Flash drives

  D. 165 SAS drives, 5 Flash drives

  Correct Answer: B

• Question 95:

  You are installing a new VNX and need to implement a Storage Pool on the array. Disks are available and must be set up as follows: 18, 400 GB SSD in R5 (4+1) for the Extreme Performance tier 30, 600 GB 15K SAS R10 (4+4) for the Performance tier 52, 4 TB NL-SAS R6 (6+2) for the Capacity tier

  Disks for Fast Cache, Vault, and unbound disks for sparing, are allocated separately.

  How should you lay out the private RAID Groups in the Storage Pool?

  A. Extreme Performance tier: 3 R5 (4+1) + 1 R5 (2+1) Performance tier: 3 R10 (4+4) + 1 R10 (3+3) Capacity tier: 6 R6 (6+2) + 1 R6 (2+2)

  B. Extreme Performance tier: 3 R5 (4+1) + 1 R5 (2+1) Performance tier: 3 R5 (8+1) Capacity tier: 5 R6 (6+2) + 1 R6 (10+2)

  C. Extreme Performance tier: 2 R5 (4+1) + 1 R5 (7+1) Performance tier: 3 R10 (4+4) + 1 R10 (3+3) Capacity tier: 6 R6 (6+2) + 1 R6 (2+2)

  D. Extreme Performance tier: 3 R5 (4+1) + 1 R5 (2+1) Performance tier: 2 R10 (4+4) + 1 R10 (7+7) Capacity tier: 6 R6 (6+2) + 1 R6 (2+2)

  Correct Answer: A

• Question 96:

  A customer has a highly active ordering application with a R/W ratio of 2:1. The application peaks at about 16,000 application IOPS during the day.

  What is the minimum required number of eMLC Flash drives and 15K SAS drives needed in a R5 storage pool to meet the performance requirements?

  A. 80 SAS drives, 5 Flash drives

  B. 90 SAS drives, 5 Flash drives

  C. 140 SAS drives, 5 Flash drives

  D. 165 SAS drives, 5 Flash drives

  Correct Answer: A

• Question 97:

  A customer wants to deploy a high performance OLTP environment doing 10,000 IOPS with a R/W ratio of 3/2. They want to make use of VNX Snapshots. The total amount of space this database needs is 700 GB in two LUNs, which is sufficiently sized for the next two years. They want to deploy as few drives as possible.

  What would you recommend the storage configuration to be?

  A. A pool consisting of five 200 GB SLC Flash drives, in RAID 5 (4+1), with FAST-VP enabled

  B. A traditional RAID Group consisting of five 200 GB SLC Flash drives, in RAID 5 (4+1)

  C. A pool consisting of ten 200 GB eMLC Flash drives, in RAID5 (4+1), with FAST-VP enabled

  D. Two traditional RAID Groups of five 200 GB eMLC Flash drives each, in RAID 5 (4+1), with two striped metaLUNs

  Correct Answer: A

• Question 98:

  A customer wants to deploy an Exchange 2010 farm doing 8,400 IOPS with a R/W ratio of 1/1. The total amount of space needed is 7,500 GB.

  What would you recommend the storage configuration to be?

  A. A pool consisting of five 100 GB eMLC Flash drives, and 30 drives of 300 GB 15K in RAID 5, with FAST-VP enabled

  B. A pool consisting of five 100 GB eMLC Flash drives in RAID 5, and 20 drives of 300 GB 15K in RAID 5, with FAST-VP enabled

  C. A pool consisting of 120 drives of 300 GB 15K, in RAID 5 (4+1)

  D. A pool consisting of 120 drives of 600 GB 15K, in RAID 5 (4+1)

  Correct Answer: A

• Question 99:

  You are implementing FAST Cache. You want to disable FAST Cache on any LUNs that do not have the correct I/O access pattern for FAST Cache. All LUNs are 4+1 R5, with sizes between 50 GB and 500 GB.

  Which answer shows an access pattern that should be avoided?

  A.

  

  B.

  

  C.

  

  D.

  

  Correct Answer: A

• Question 100:

  You are implementing FAST Cache. You want to disable FAST Cache on any LUNs that do not have the correct I/O access pattern for FAST Cache. All LUNs are 4+1 R5, with sizes between 50 GB and 500 GB.

  Which answer shows an access pattern that should benefit from FAST Cache?

  A.

  

  B.

  

  C.

  

  D.

  

  Correct Answer: A