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IBM C4090-453 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: DS8000 Architecture and Components | 22% | - Hardware architecture and components - RAS features and reliability - Cache and Non-Volatile Storage (NVS) - Easy Tier and storage tiering |
| Topic 2: Copy Services and Advanced Functions | 28% | - FlashCopy - z/OS specific copy services - Encryption and security - Metro Mirror / Global Mirror - Thin provisioning and QoS |
| Topic 3: Migration and Support | 10% | - Upgrade and compatibility - Data migration strategies - Support resources and documentation |
| Topic 4: Interoperability and Integration | 14% | - VMware integration - Open systems and mainframe environments - Tivoli Storage Productivity Center - PowerHA and GDPS integration |
| Topic 5: Solution Design and Sizing | 26% | - TDA (Technical Delivery Assessment) process - Disk Magic and Capacity Magic tools - Configuration and sizing - Requirements analysis |
IBM System Storage DS8000 Technical Solutions V3 Sample Questions:
A D38870 administrator would access the GUI using:
- A. The POWER7 controller
- B. A browser
- C. Only the HMC
- D. A thick client
Correct Answer: B π³οΈ
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. through the GUI, adjust the required FOP ports for open to 2 Gbps and the FIOON ports for mainframe to 4 Gbps link speed
- B. the D58000 8 Gbps Host Adapter ports auto-negotiate to 4 Gbps and 2 Gbps link speed
- C. the customer needs to change the server's HBA5 to an 8 Gbps link speed type
- D. the DS8OIJO supports 4 Gbps for mainframe connection; the 2 Gbps open systems connection must be connected via an intermediate SAN
Correct Answer: B π³οΈ
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 π³οΈ
When Global Mirror and the local disk subsystem fails it usually is not possible to recover because the subsystem stops responding. The SNMP then sends the alerts that indicate there is a problem.
What triggers the initial recovery actions?
- A. The SNMP alerts are enough to trigger the recovery and then fix the problem
- B. Total Storage Productivity Center for Data
- C. Once the SNMP alerts have been received the process will restart automatically
- D. The problem can be fixed manually once the SNMP alerts are spotted
Correct Answer: D π³οΈ
The output of what tool is used as input to Disk Magic to most accurately model a Windows host that will be used with an IBM D38000?
- A. Perimon
- B. Jetstress
- C. NMON
- D. IOSTAT
Correct Answer: A π³οΈ
