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IBM System Storage DS8000 Technical Solutions Sample Questions:

1. A customer asks for one storage device with a peak load of minimum 160,000 IOPS.
Which statement is INCORRECT to make when advising this customer?

A) Many IOPS also require many disk drive spindles to be used, unless we go with some flash.
B) The requirement could be solved completely with just 15,000 RPM HDD spindles. However, some Flash capacity helps reduce the number of HDDs.
C) We definitely need togo with two IBM DS8870sto solve this requirement.
D) The "Disk Magic" tool helps with amodelingand to find the right configuration.

2. Where is the information stored todeterminehas performedremote services on a storage system and to find the time when the service was performed?

A) TPC
B) Audit Log
C) DS GUI
D) DS Command Line Interface

3. A customer is having performance problems with an IBM DS8870. The DS8870 has only 600 GB drives (all drives are the same size and speed). A performance analysis indicates that some ranks are performing much more I/O than others. The customer is not running Easy Tier.
What should you recommend first?

A) Add more cache to the machine.
B) Use auto-rebalance in Easy Tier.
C) Purchase SSDs and set up a combined HDD+SSD Easy Tier pool.
D) Purchase an Easy Tier license.

4. What is required for IBM DS8870 to make it compliant withNIST SP 800-131a, with regards to encrypting GUI and CLI command traffic?

A) Data-at-rest encryption with FDE drives to implement the function
B) DSCLI commands to activate the function
C) Java 1.6 and higher to make use of the function
D) I/O Priority Manager to set up the function

5. A customer is experiencing high IOSQ time with its existing storage.
Which IBM DS8870 feature is designed to reduce IOSQ time?

A) Multiple Allegiance
B) MIDAWs
C) Fabric Priority
D) HyperPAV

Solutions: