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IBM C4090-453 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Interoperability and Integration | 14% | - Tivoli Storage Productivity Center - Open systems and mainframe environments - VMware integration - PowerHA and GDPS integration |
| DS8000 Architecture and Components | 22% | - Cache and Non-Volatile Storage (NVS) - Hardware architecture and components - RAS features and reliability - Easy Tier and storage tiering |
| Solution Design and Sizing | 26% | - Requirements analysis - TDA (Technical Delivery Assessment) process - Disk Magic and Capacity Magic tools - Configuration and sizing |
| Migration and Support | 10% | - Data migration strategies - Support resources and documentation - Upgrade and compatibility |
| Copy Services and Advanced Functions | 28% | - z/OS specific copy services - Encryption and security - Thin provisioning and QoS - FlashCopy - Metro Mirror / Global Mirror |
IBM System Storage DS8000 Technical Solutions V3 Sample Questions:
A potential DS8OIJO customer would like to understand the size of the non-volatile storage (NVS) as compared to the overall size of the DS8000 processor memory.
Which technical feedback to the customer is correct?
- A. NVS size is 1/32 scale (in minimum 1 GB) of the overall processor memory
- B. NVS size is 4 GB for all cache sizes up to 64 GB. and 16 GB for all overall cache sizes over 64 GB
- C. NVS size can be adjusted according to customer demand using the CLI
- D. NVS size is a part of the SARC algorithm and adapts automatically depending on the actual workload of the customer
Correct Answer: A 🗳️
When I/O Priority Manager is enabled, each volume in a D38800 is assigned to a performance group at the time of the volume creation.
What action will the DS8800 take to ensure that the most important volumes as defined to I/O Priority Manager receive the highest level of system resources available?
- A. invoke Easy Tier for higher performance policy I/Os
- B. move volumes with higher performance policy I/Os to faster disks or SSDS
- C. allocate additional cache for volumes with higher performance policies
- D. delay I/Os with lower performance policies
Correct Answer: D 🗳️
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 = 258TB, MM = 141TB, FlashCopy = 141TB, PAV = 1 17TB, EICON = Yes
- B. OEL = 258TB, MM = S7TB, FlashCopy = 87TB, PAV = 87TB, FICON = Yes
- C. OEL = 173TB, MM = 87TB, FlashCopy = 48TB1 PAV = 87TB, FICON = Yes
- D. OEL = 258TB, MM = 258TB, FlashCopy = 258TB, PAV = 258TB, EICON = Yes
Correct Answer: A 🗳️
A customer wants to be sure that all the volumes and LUNs associated with a program are copied at a consistent point in time.
Which disaster recovery function does the DS8000 support that this customer wishes to focus on?
- A. Consistency Groups
- B. Global Copy
- C. FlashCopy Manager
- D. Volume Copy
Correct Answer: A 🗳️
On the DS8870, which of the following drive options is a valid Easy Tier hybrid pool?
- A. eMLO SSDs and 5,400 RPM drives
- B. 15,000 RPM and 7,200 RPM drives
- C. SLO and eMLO SSDs
- D. 7,200 RPM drives
Correct Answer: B 🗳️
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