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

2. When is the best time to complete a TDA for XIV?

A) during the pre-sales activity before the hardware is ordered
B) before the customer starts to use the XIV hardware
C) after the XIV hardware is installed
D) after the XIV hardware is ordered

3. On a thin-provisioned pool the size of the volume is limited by:

A) the hardcapacityof the XIV
B) the hard capacity of the volume
C) the hard capacity of the storage pool
D) the soft capacity of the storage pool

4. What minimum information is required when creating a volume on an XIV system?

A) capacity, storage pool, volume name
B) capacity, RAID level, disk group
C) drive type, disktier, capacity
D) Quality of Service, consistency group, volume name

5. When creating a thin provisioned volume on an XIV the maximum capacity is limited by:

A) the availablecapacityin the XIV system
B) the softcapacityof the storage pool where the volume resides
C) the hard capacity of the storage pool where the volume resides
D) the vol_size_max configuration parameter

Solutions: