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IBM C4090-453 Exam Syllabus Topics:

IBM System Storage DS8000 Technical Solutions V3 Sample Questions:

1. A customer wants to place some HDDs in a DS8870. The customer also wants to enable Easy Tier with SSD for all HDDs, but wants to minimize the amount of SSDs purchased.
Which option would be valid?

A) SDDs come in full drive sets (16 drives). Purchasing a single full drive set, if configured properly, would enable all the HDDs to be in an Easy Tier pool at the lowest cost.
B) IBM recommends a 2:1 ratio of HDDs to SSDs, so the customer should purchase half the number of SSDs compared to the number of HDDs purchased.
C) SSDs come in half drive sets (8 drives). Purchasing a single half drive set, if configured properly, would enable all the HDDs to be in an Easy Tier pool at the lowest cost.
D) IBM never recommends less than 50% of the configured drives be SSD, so the customer should match the number of HDDs with the same number of SSDs.

2. Which tool can a customer use without assistance to determine whether a mixture of different disk types, in conjunction with Easy Tier, could improve performance on a DS8000?

A) Disk Magic
B) Storage Tier Advisor
C) Pre-Sales Advisor
D) Capacity Magic

3. Which statement is true of the Easy Tier feature on DS8000?

A) It will operate in a homogeneous pool.
B) It handles data in 256 MB chunks.
C) It requires SSDs to be added to a heterogeneous pool to operate.
D) It is a priced feature by terabytes used.

4. A customer has a DS8000 with 100 TB raw capacity' installed and running in their data center. All storage is for open systems workloads. There is 30 TB of unused capacity'. There are no Advanced Functions installed, but after a presentation from the Business Partner they are interested in using FlashCopy to help reduce their overnight batch window.
How can this function be tested in compliance with the DS8000 licensing rules?

A) A FlashCopy license for 100 TB is needed
B) Use the DSEA website to request a temporary' license
C) AFlashCopylicense for 30 TB is needed
D) All Advanced Function software is loaded so it can be used in test mode for 45 days

5. The exhibit represents a report from Capacity Magic. A customer wants to implement a mixed Open and System z environment. They will be using a combination of SSD, SAS and Nearline SAS drives. System z will require PAV. The NL-SAS drives will be used for FlashCopy targets for Open Systems and for Historical Report Data for z/OS. They wish to use Metro Mirror to replicate the Opens Systems production data to a remote site.

Which of the following best describes the minimum license requirements?

A) OEL = 173TB, MM = 87TB, FlashCopy = 48TB1 PAV = 87TB, FICON = Yes
B) OEL = 258TB, MM = 258TB, FlashCopy = 258TB, PAV = 258TB, EICON = Yes
C) OEL = 258TB, MM = 141TB, FlashCopy = 141TB, PAV = 1 17TB, EICON = Yes
D) OEL = 258TB, MM = S7TB, FlashCopy = 87TB, PAV = 87TB, FICON = Yes

Solutions: