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IBM C4090-453 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Storage Management | - Performance monitoring and optimization - Logical volumes and pools management |
| Installation and Configuration | - Host connectivity configuration - Initial system setup and configuration |
| DS8000 Architecture and Components | - Storage virtualization concepts - DS8000 hardware architecture overview |
| Maintenance and Troubleshooting | - System diagnostics and logs - Problem determination and resolution |
| High Availability and Disaster Recovery | - Copy services (Metro Mirror, Global Mirror) - Backup and recovery strategies |
IBM System Storage DS8000 Technical Solutions V3 Sample Questions:
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 10 because this is the only protection supported for NL-SAS drives
- C. RAID 6 because the time to rebuild NL-SAS drives would leave the array exposed for a long time after a single disk failure
- D. RAID 0 because archive data isn't mission critical and they should use tape backup
Correct Answer: C 🗳️
A new D58000 mixed mainframe and open storage customer would like to connect older open (2 Gbps) and mainframe servers (4 Gbps) to the DS8000 system's 8 Gbps host adapters.
How can this be done?
- A. the customer needs to change the server's HBA5 to an 8 Gbps link speed type
- B. through the GUI, adjust the required FOP ports for open to 2 Gbps and the FIOON ports for mainframe to 4 Gbps link speed
- C. the DS8OIJO supports 4 Gbps for mainframe connection; the 2 Gbps open systems connection must be connected via an intermediate SAN
- D. the D58000 8 Gbps Host Adapter ports auto-negotiate to 4 Gbps and 2 Gbps link speed
Correct Answer: D 🗳️
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. Service Level sets
- B. MLs and Patches
- C. Non-disruptive Code Loads
- D. APAR5 and PTE5
Correct Answer: D 🗳️
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 does not support z/Linux data on CKD devices
- C. MzGM supports distributed systems data on PB devices
- D. MzGM can be managed by GDPS and Tivoli Storage Productively Center
Correct Answer: A 🗳️
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. Implement TS1 140 drives
- C. Increase cache size
- D. Install Solid state Drives
Correct Answer: A 🗳️
