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IBM C4090-453 Exam Syllabus Topics:

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

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

3. What should be used to most effectively model System z customer workload for implementation on IBM DS8800?

A) SMF Analyzer
B) RMF Magic and Disk Magic
C) RMF Magic only
D) Disk Magic only

4. A customer has a UNIX-based 25 TB Oracle/SAP instance currently running on an HP 12000 Enterprise Storage array. The database is very sensitive to response times and is reported to have a peak I/O requirement of over 25,000 I/O per second. The HP device is nearly three years old, and the customer is considering replacing it.
Which of the following is the best way to investigate the IBM DS8000 as a suitable technology replacement for the HP 12000 device?

A) Use the Internet to find out the capabilities of an HP 12000 Storage Array and configure an equivalent IBM D58800.
B) Ask the customer if they can estimate the workload characteristics.
C) Ask the customer on what basis HP sized the HP 12000 Storage Array originally, and make an assessment from that information.
D) Ask the customer for IOSTAT output from the server or servers and use it as an input to a Disk Magic model.

5. Which of the following statements about the three-site solution Metro z/QS Global Mirror (MzGM) is true?

A) MzGM is a multi-target solution where the primary device is replicated both synchronously and asynchronously
B) MzGM can be managed by GDPS and Tivoli Storage Productively Center
C) MzGM supports distributed systems data on PB devices
D) MzGM does not support z/Linux data on CKD devices

Solutions: