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IBM XIV Storage System Technical Solutions V4 Sample Questions:

1. A customer demands NES and block access to their storage solution, but is also interested in XIV technology. The customer wants to have easy administration for both NES and block. They would also like to combine the solution with an IBM HSM solution. The initial need for storage is 500 TB and grows by 500 TB every five months.
What would be the best solution for this customer?

A) SONAS gateway with XIV as back-end storage
B) AIX with the XIV connected to it
C) SVC with the XIV connected to it
D) N series gateway with XIV as back-end storage

2. On XIV what factors are important to successfully implement asynchronous mirroring?

A) data change rate, number of volumes less than 256, required RPO
B) latency between the remote and local XIV, number of volumes must be less than 256
C) data change rate, available bandwidth and interval
D) each mirror must have the same RPO and sync interval within the same storage pool

3. XIV hardware architecture optimizes the usage of snapshots by:

A) copying data on write so the production drives are not over stressed
B) offering the possibility to isolate the drives used for snapshot target space
C) a redirect-on-write operation using all drives in any snapshot process
D) limiting the total number of snapshots to a maximum of 128 active pairs

4. 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 SAP volumes should be put into a QoS Performance Class
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) add Fibre Channel adapters to the host and balance volumes across the adapters

5. Which two of the following IBM products assure online data migration? (Select two)

A) XIV Storage System
B) DS8870
C) FlashSystems
D) SAN Volume Controller
E) DS5000series

Solutions: