Free IBM C4090-456 Exam Dumps Questions & Answers

A TELCO customer has an application that generates intensive small block random reads. The customer installed one XIV Gen3 system and is dissatisfied with this choice. They have enough performance on writes and sufficient capacity.
In order to consolidate more applications what should the technical specialist advise?

• A.  use external storage with FC drives and virtualize it under XIV
• B.  order an extra frame with SAS 15k drives
• C.  request IBM to change the nearline SAS drives with SAS 10k drives
• D.  orderthe SSD option and use itin conjunction with Q0S

Which tool can natively manage an XIV system?

• A.  Tivoli Storage Manager
• B.  Tivoli Storage Productivity Center
• C.  Veritas StorageFoundationSuite
• D.  IBM Systems Director

What is the fastest way to see which volume is receiving the most IOPS on the XIV?

• A.  openXIVTopinthedefaultview
• B.  opentheXIV GUI and checkthe volume view
• C.  open XIV GUI and select the first 12 volumes, and then next 12 and so on
• D.  run XCLI command xcii volume_max_iops_list

XIV Quality of Service limits I/O to which of the following?

• A.  storage pools
• B.  hosts
• C.  mirrored pairs
• D.  consistency groups

A customer complains that their SAP database now performs worse than it did before being migrated from traditional RAID storage to XIV. The database was configured using 20 x 200GB XIV LUNs presented to an AIX 6 host OS where they are concatenated and striped into six volumes for the databases and logs. No changes have been made in the transition to XIV.
What if anything can be done to improve performance?

• A.  add Fibre Channel adapters to the host and balance volumes across the adapters
• B.  implement static load balancing and increase the queue depth of the host adapters
• C.  the databases should be reorganized into larger volumes on the XIV and not striped within the OS
• D.  the SAP volumes should be put into a QoS Performance Class