EMC E20-326 Online Practice Questions and Exam Preparation

EMC E20-326 Online Questions & Answers

• Question 61:

  A customer has requested multiple design solutions for their new FAST-enabled Symmetrix VMAX storage. You have the performance files and symapi_db.bin files for the three source DMX arrays. Which type of analysis should be created with Tier Advisor to respond to the customer's request?

  A. "What-if" cost-benefit
  B. Peak period I/O
  C. Wide period I/O
  D. Tiered and non-tiered
  A. "What-if" cost-benefit

• Question 62:

  Which information is needed when designing an Open Replicator solution?

  A. Remote array serial number and devices, control and remote front end ports.
  B. Remote array serial number, Open Replicator control host, SRDF device pairing file.
  C. TDATs to replicate, remote array serial number, Tier Advisor.
  D. SYMMERGE, TDATs to replicate, Open Replicator software.
  A. Remote array serial number and devices, control and remote front end ports.

• Question 63:

  A customer plans to migrate UNIX and Microsoft Windows clusters from another vendor's array to an EMC Symmetrix. You are responsible for the design of the VMAX 20K solution that is to be replicated to a metropolitan bunker site. There is no tolerance for data loss.

  Which data is appropriate for the design of this solution?

  A. IOSTAT data for Linux, Solaris, and AIX hosts ERFMON data for Windows hosts SAR for HP-UX hosts
  B. IOSTAT for Linux and AIX hosts DISKPAR data for Windows hosts SAR data for HP-UX and Solaris hosts
  C. IOSTAT data for Linux and AIX hosts PERFMON and DISKPAR data for Windows hosts
  D. IOSTAT data for HP-UX and Linux hosts PERFMON data for Windows hosts SAR for AIX and Solaris hosts
  A. IOSTAT data for Linux, Solaris, and AIX hosts ERFMON data for Windows hosts SAR for HP-UX hosts

• Question 64:

  A company plans to deploy Symmetrix VMAX arrays in their VMware vSphere environment. The ESXi hosts will be connected to the VMAX arrays over a FC SAN. Which VMAX FA port flag must be enabled?

  A. SPC-2
  B. VCM State
  C. SCSI Support
  D. Volume Set Addressing
  A. SPC-2

• Question 65:

  An SRDF/S customer has implemented FAST VP at R1 and R2 sites. What will happen to a thin R2 device when a thin R1 device extent is promoted?

  A. The corresponding extent on the R2 device will be promoted as long as there is storage space available in the higher tier
  B. Nothing. Promotions on the source do not affect the target
  C. The corresponding extent on the R2 device will be promoted simultaneously only if the FAST VP policy allows it
  D. The corresponding extent on the R2 device will be promoted if the target Symmetrix is not too busy
  B. Nothing. Promotions on the source do not affect the target

• Question 66:

  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-way- mir volumes on FC disks for DSE pool
  B. Drain selected SATA TDAT volumes in 10 RAID sets Delete selected SATA TDAT volumes Create 2- way-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
  A. Drain selected FC TDAT volumes in 80 RAID sets Delete selected FC TDAT volumes Create 2-way- mir volumes on FC disks for DSE pool

• Question 67:

  A Symmetrix VMAX has been configured with Dynamic Cache Partitioning. What criterion must be met for a cache slot to be eligible for donation?

  A. The fall through time must be greater than the donation age.
  B. The fall through time must be less than the donation age.
  C. The cache slot must belong to a static partition.
  D. There must be cache slots available in the default partition.
  A. The fall through time must be greater than the donation age.

• Question 68:

  Refer to the exhibit.

  

  You have used BCSD to model an SRDF/A solution. Based on the SRDF/A risk analysis shown what are your recommendations?

  A. Provide more bandwidth and cache.
  B. Ensure that the SRDF devices on the source and target arrays use the same protection. Provide more bandwidth.
  C. Ensure that the SRDF devices on the source and target arrays reside on disks with the same RPM. Provide more remote adapters.
  D. Provide more remote adapters. Upgrade both arrays to Symmetrix VMAX.
  B. Ensure that the SRDF devices on the source and target arrays use the same protection. Provide more bandwidth.

• Question 69:

  A customer will migrate existing AIX, HP-UX and Windows hosts from a DMX-3 to a new VMAX array. You need performance data from the existing array to design to the new VMAX volumes configuration layout. Which tools can be used to collect Symmetrix array performance data?

  A. ControlCenter Performance Manager and STP Collector
  B. EMC Workload Generator and STP Navigator
  C. Storage Configuration Advisor and STP Collector
  D. ControlCenter Performance Manager and SymmMerge
  A. ControlCenter Performance Manager and STP Collector

• Question 70:

  What is the maximum number of wavelengths that can be multiplexed on a single optical fiber over CWDM?

  A. 16
  B. 24
  C. 32
  D. 160
  A. 16