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IBM System Storage DS8000 Technical Solutions V3 Sample Questions:

1. Which statement about I/O Priority Manager on the DS8000 is true?

A) It can be more granular on z/OS than any other operating system
B) It needs at least two tiers of disks to work
C) It can interface with VMware VAAI primitives to improve performance
D) It allocates cache on 4K boundaries to improve performance

2. How many Global Mirror sessions are supported on a single DSSSOO?

A) 32
B) 16
C) 256
D) 1

3. A customer already has a D38000 with RAID 10 protection for their production data. They want to implement NL-SAS drives in the same DS8000 for archive data.
Which disk protection should be used for this and why?

A) RAID 5 because data on these drives is less critical than the production data
B) RAID 10 because this is the only protection supported for NL-SAS drives
C) RAID 0 because archive data isn't mission critical and they should use tape backup
D) RAID 6 because the time to rebuild NL-SAS drives would leave the array exposed for a long time after a single disk failure

4. The customer's data center has an elevator with a maximum load capacity' of 2200 lb (1000 kg). A Disk Magic study has proved that the performance requirements of the workload are at Enterprise class levels.
What should be recommended?

A) Order a DS8800 with minimal disks and then MES upgrade with additional capacity' to the customer's requirements.
B) Redesign the solution to use modular systems, like IBM Storwize V7000, which could be delivered in lighter shipments.
C) A standard D68800. The Customer Engineer can then remove parts until the elevator load capacity' is not exceeded.
D) Configure the feature code on DS8800 which allows a shipping weight reduction.

5. What factor in the architecture of the DSS000 allows for concurrent microcode updates to be performed?

A) Call Home and Dial-in support
B) Subsystem Device Drivers
C) Control-unit Initiated Reconfiguration support
D) Built-in redundancy

Solutions: