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IBM C4090-453 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Storage Management | - Logical volumes and pools management - Performance monitoring and optimization |
| High Availability and Disaster Recovery | - Backup and recovery strategies - Copy services (Metro Mirror, Global Mirror) |
| Installation and Configuration | - Host connectivity configuration - Initial system setup and configuration |
| Maintenance and Troubleshooting | - System diagnostics and logs - Problem determination and resolution |
| DS8000 Architecture and Components | - Storage virtualization concepts - DS8000 hardware architecture overview |
IBM System Storage DS8000 Technical Solutions V3 Sample Questions:
1. 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) Ask the customer if they can estimate the workload characteristics.
B) Ask the customer on what basis HP sized the HP 12000 Storage Array originally, and make an assessment from that information.
C) Use the Internet to find out the capabilities of an HP 12000 Storage Array and configure an equivalent IBM D58800.
D) Ask the customer for IOSTAT output from the server or servers and use it as an input to a Disk Magic model.
2. Which of the following statements about the three-site solution Metro z/QS Global Mirror (MzGM) is true?
A) MzGM does not support z/Linux data on CKD devices
B) MzGM can be managed by GDPS and Tivoli Storage Productively Center
C) MzGM supports distributed systems data on PB devices
D) MzGM is a multi-target solution where the primary device is replicated both synchronously and asynchronously
3. Who is entitled to perform an IBM Secure Data Overwrite of a DSSS7O?
A) Business Partners
B) Field Support Personnel
C) STG Lab Services
D) Customers
4. 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) Pre-Sales Advisor
B) Storage Tier Advisor
C) Capacity Magic
D) Disk Magic
5. Which of the following elements provides data integrity in the DS8000?
A) Subsystem Device Driver
B) Storage Pool Striping
C) Non-Volatile Storage
D) I/O Priority Manager
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: D | Question # 3 Answer: C | Question # 4 Answer: B | Question # 5 Answer: C |








