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Symmetrix Solutions Design Exam

Exam Details

  • Exam Code
    :E20-326
  • Exam Name
    :Symmetrix Solutions Design Exam
  • Certification
    :Technology Architect
  • Vendor
    :EMC
  • Total Questions
    :235 Q&As
  • Last Updated
    :

EMC Technology Architect E20-326 Questions & Answers

  • Question 1:

    You are designing the Symmetrix VMAX architecture for a DAS-to-SAN SQL Server migration. Currently all user databases reside on a single, locally-attached disk enclosure, mounted to "N:\". You have decided on RAID-5 protected 15,000 RPM drives for the new SQL database and RAID-1 for the transaction log.Last week, you configured Perfmon to record the current IOPS load of the databases during the 8-hour business day, Monday through Friday as shown in the exhibit. During an average business day, the transaction log processes 87 GB worth of data.

    Following EMC best practices, what is the minimum number of spindles that must be allocated for optimal transaction log performance?

    A. 2

    B. 4

    C. 8

    D. 10

  • Question 2:

    You are designing the Symmetrix VMAX architecture for a DAS-to-SAN SQL Server migration. Currently all user databases reside on a single, locally-attached disk enclosure, mounted to "N:\". You have decided on RAID-5 protected 15,000 RPM drives for the new SQL database and RAID-1 for the transaction log.

    Last week, you configured Perfmon to record the current IOPS load of the databases during the 8-hour business day, Monday through Friday as shown in the exhibit. During an average business day, the transaction log processes 87 GB worth of data.

    Following EMC best practices, how many IOPS should be subtracted from the overall write IOPS, when calculating for the database writes?

    A. 386

    B. 396

    C. 792

    D. 1544

  • Question 3:

    You are designing the Symmetrix VMAX architecture for a DAS-to-SAN SQL Server migration. Currently all user databases reside on a single locally-attached disk enclosure, mounted to "M:\". You have decided on RAID-1 protected 15,000 RPM drives for the new SQL environment.

    Last week, you configured Perfmon to record the current IOPS load as shown in the exhibit. Following EMC best practices, what is the minimum number of spindles required to satisfy the performance needs of the database?

    A. 9

    B. 10

    C. 18

    D. 20

  • Question 4:

    You are designing the Symmetrix VMAX architecture for a DAS-to-SAN SQL Server migration. Currently all user databases reside on a single locally-attached disk enclosure, mounted to "M:\". You have decided on RAID-1 protected 15,000 RPM drives for the new SQL environment.

    Last week, you configured Perfmon to record the current IOPS load of the databases during the 8-hour business day, Monday through Friday as shown in the exhibit. During an average business day, the transaction log processes 43 GB worth of data.

    Following EMC best practices, which discount can be taken from the overall write IOPS when calculating for the database writes?

    A. 196

    B. 392

    C. 597

    D. 989

  • Question 5:

    Refer to the exhibit.

    A company plans to deploy a two-engine Symmetrix VMAX array in their VMware vSphere environment. The ESXi hosts will be connected to the VMAX array over a FC SAN.

    What is the recommended best practice when zoning an ESXi host with two HBAs to the VMAX?

    A. HBA 1 to Port E0 on Even (8) Director HBA 1 to Port E0 on Even (10) Director HBA 2 to Port E0 on Odd (7) Director HBA 2 to Port E0 on Odd (9) Director

    B. HBA 1 to Port E0 on Odd (7) Director HBA 1 to Port E0 on Even (8) Director HBA 2 to Port G0 on Odd (7) Director HBA 2 to Port G0 on Even (8) Director

    C. HBA 1 to Port E0 on Odd (7) Director HBA 1 to Port E1 on Odd (7) Director HBA 2 to Port G0 on Even (10) Director HBA 2 to Port G1 on Even (10) Director

    D. HBA 1 to Port E0 on Odd (7) Director HBA 1 to Port E0 on Even (8) Director HBA 2 to Port E0 on Odd (9) Director HBA 2 to Port E0 on Even (10) Director

  • Question 6:

    Refer to the exhibit.

    A company plans to deploy a one-engine Symmetrix VMAX array in their VMware vSphere environment. The ESXi hosts will be connected to the VMAX array over a FC SAN.

    What is the recommended best practice when zoning an ESXi host with two HBAs to the VMAX?

    A. HBA 1 to Port E0 on Odd (7) Director HBA 1 to Port E0 on Even (8) Director HBA 2 to Port G0 on Odd (7) Director HBA 2 to Port G0 on Even (8) Director

    B. HBA 1 to Port E0 on Odd (7) Director HBA 1 to Port G0 on Odd (7) Director HBA 2 to Port E0 on Even (8) Director HBA 2 to Port G0 on Even (8) Director

    C. HBA 1 to Port E0 on Odd (7) Director HBA 1 to Port E1 on Odd (7) Director HBA 2 to Port G0 on Even (8) Director HBA 2 to Port G1 on Even (8) Director

    D. HBA 1 to Port E0 on Odd (7) Director HBA 1 to Port F0 on Odd (7) Director HBA 2 to Port G0 on Odd (7) Director HBA 2 to Port H0 on Odd (7) Director

  • Question 7:

    A customer has a Symmetrix VMAX storage array configured with 99.9% utilization of raw storage capacity. The frame is configured with storage pools as shown in the exhibit. Note the following:

    Pool P00400GE00R5 is 400 GB SSD RAID 5

    Pool P02002TS72R6 is 2000 GB SATA RAID 6

    Pool P01450GF15R1 is 450 GB FC 2-Way-Mir

    SRDF/A replication suspends regularly

    Investigation shows that write pending values are too high for the R1 volumes. I/O requirements for the DSE pool are computed. If DSE is used, where and how should the pool be built?

    A. Drain selected FC TDAT volumes in 80 RAID sets Delete selected FC TDAT volumes Create 2-waymir volumes on FC disks for DSE pool

    B. Drain selected SATA TDAT volumes in 10 RAID sets Delete selected SATA TDAT volumes Create 2way-mir volumes on SATA disks for DSE pool

    C. Drain selected EFD TDAT volumes in 12 RAID sets Delete selected EFD TDAT volumes

    D. Create 2-way-mir volumes on EFD disks for DSE pool Drain selected FC TDAT volumes in 80 RAID sets Delete selected FC TDAT volumes Create 3+1 R5 volumes on FC disks for DSE pool

  • Question 8:

    Exhibit:

    You have used BCSD to model an SRDF/A solution and have an SRDF/A risk analysis, as shown in the exhibit. What should be your recommendation?

    A. Ensure that the RDF devices use the same RAID and drive configuration. Provide more remote adapters.

    B. Provide more bandwidth. Upgrade both arrays to Symmetrix VMAX.

    C. Ensure that the RDF devices use the same RAID and drive configuration. Provide adequate bandwidth.

    D. Provide more bandwidth and more remote adapters. Ensure that the local and remote arrays run the same Enginuity level.

  • Question 9:

    Refer to the exhibit.

    You are considering potential configurations of a new storage system. You need to make decisions that consider different cost-benefit ratios.

    Which policy applied to the workload provides the minimum expenditure?

    A. Heavy Skew

    B. Moderate Skew

    C. Low Skew

    D. Default Skew

  • Question 10:

    A customer has a Symmetrix VMAX storage array configured with 94.9% utilization of raw storage capacity, according to symwin. The frame is configured as shown in the exhibit. The SRDF/A replication suspends regularly. Investigation shows write pending values are too high for the R1 volumes. I/O requirements for the DSE pool are computed.

    If DSE is used, where and how should the pool be built?

    A. FC disk on all engines

    B. FC disk on engines 1 and 8

    C. SATA disk on all engines

    D. EFD on all engines

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