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IBM C4090-456 Exam Syllabus Topics:

IBM XIV Storage System Technical Solutions V4 Sample Questions:

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

2. What is the online tool that should be checked for supported host interoperability?

A) IT Security
B) 1331 B 331
C) 3310

3. A customer builds a solution with SAN Volume Controller and an XIV system.
For best performance how many paths should be used between the SVC and the XIV system?

A) each SVC port should have one path to all available XIV interface modules
B) each I/O group must have one path to all available XIV interface modules
C) each SVC cluster should have one path to all available XIV interface modules
D) all XIV interface module FC ports should be zoned to each FC port on each SVC node

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

5. How does IBM XIV SSD technology provide longer life over competitors' use of SSD technology?

A) common off-the-shelf components minimize the use of SSDs for write environments
B) patented wear-leveling algorithm designed for SSD longevity
C) IBM SSDs are filled with write blocks of 1024kb in random I/O operations
D) hybrid algorithms combine features of SSDswith existing HDDsin the same unit

Solutions: