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IBM System Storage DS8000 Technical Solutions V3 Sample Questions:

1. As with all types of technology. System z software occasionally needs to have maintenance applied to it to fix errors or to support enhanced functionally.
In the System z environment, this maintenance is known as:

A) Non-disruptive Code Loads
B) APAR5 and PTE5
C) MLs and Patches
D) Service Level sets

2. A customer's IT department has had problems meeting their backup window. They now mandate that a fast backup process be in place before an application is deployed. They have a DS8000 as their disk subsystem and a TS3500 tape library for backups.
What is the simplest and most effective option to satis1i this requirement?

A) ImplementFlashCopy
B) Install Solid state Drives
C) Increase cache size
D) Implement TS1 140 drives

3. After initial installation of DSSSOO systems in a customer site a review must be conducted to verify that the disk system performance is in range.
How can the cache hit ratio be verified?

A) Use Tivoli Storage Productively Center
B) Issue the CLI command dscli>verify-perf-read hit-time period
C) Use the pen stat command in the CLI
D) Use the DSS000 Real Time Performance Monitor

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

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

Solutions: