IBM C4090-453 : IBM System Storage DS8000 Technical Solutions V3

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IBM System Storage DS8000 Technical Solutions V3 Sample Questions:

1. When configuring LUNs for IBM i which is not using VIOS, which of the following is true?

A) LUNs have 520 byte sectors and must match the size of internal drives.
B) LUNs have 512 byte sectors and are limited to 2 TB.
C) LUNs have 512 byte sectors and must match the size of internal drives.
D) LUNs have 520 byte sectors and are limited to 2 TB.

2. The DS CLI can be invoked in which three modes?
1.Single-shot command mode
2.Interactive command mode
3.Script command mode
4.Background command mode

A) 1, 3, 4
B) 2, 3, 4
C) 1, 2, 4
D) 1, 2, 3

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 10 because this is the only protection supported for NL-SAS drives
B) RAID 5 because data on these drives is less critical than the production data
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 value-based licensing for the Operating Environment License (OEL) is priced based on what characteristics?

A) Only the total raw capacity
B) Only the amount of usable capacity
C) Disk drive type and raw capacity
D) Amount of cache, number of host adapters, usable capacity

5. Which of the following items would suggest that the use of space efficient FlashCopy for the Global Mirror secondary volume could present an issue?

A) There are multiple primary disk subsystems in the Global Mirror session
B) The workload has a large amount of heavy sequential write activity
C) The customer is using Tivoli Storage Productivity Center for Replication to manage Global Mirror
D) There is a long distance between the primary and secondary sites

Solutions: