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IBM C4090-453 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Copy Services and Advanced Functions | 28% | - Encryption and security - Metro Mirror / Global Mirror - z/OS specific copy services - FlashCopy - Thin provisioning and QoS |
| Topic 2: Solution Design and Sizing | 26% | - Configuration and sizing - Disk Magic and Capacity Magic tools - TDA (Technical Delivery Assessment) process - Requirements analysis |
| Topic 3: Interoperability and Integration | 14% | - VMware integration - Tivoli Storage Productivity Center - Open systems and mainframe environments - PowerHA and GDPS integration |
| Topic 4: Migration and Support | 10% | - Support resources and documentation - Data migration strategies - Upgrade and compatibility |
| Topic 5: DS8000 Architecture and Components | 22% | - Hardware architecture and components - Easy Tier and storage tiering - RAS features and reliability - Cache and Non-Volatile Storage (NVS) |
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 520 byte sectors and must match the size of internal drives.
B) LUNs have 512 byte sectors and must match the size of internal drives.
C) LUNs have 512 byte sectors and are limited to 2 TB.
D) LUNs have 520 byte sectors and are limited to 2 TB.
2. A potential D68870 customer asks the technical specialist which extent size is used to relocate hot extents from normal SAS disk resources to SSDs because they want to understand IBM's adjustment compared to the other high end disk suppliers.
Which is the extent size used for DSS000 Easy Tier data relocation?
A) 8 GB
B) 2 BG
C) 256 MB
D) 1 GB
3. A customer is planning to implement a new DS8000. They want to keep management of the DS8000 to a minimum. Which is the preferred method for allocating volumes to assist with this?
A) Rotate Ranks to allow random positioning of ranks across arrays
B) Rotate Arrays to allow optimum placement of arrays in the DSS000
C) Rotate Extents to allow granular placement of extents across multiple ranks
D) Rotate Volumes to allow volumes to fill ranks sequentially
4. How many Global Mirror sessions are supported on a single DSSSOO?
A) 1
B) 16
C) 32
D) 256
5. As the result of a performance sizing a D38870 system configuration must include 96 x 600 GB 10000 rpm SAS drives, and only 32 GB cache.
Which DS8870 system version should to be offered?
A) DS8870 business class configuration including 2 core processors
B) DS8870 business class configuration including 4 core processors
C) DS8870 enterprise class configuration including 4 core processors
D) DS8870 enterprise class configuration including 2 core processors
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: D | Question # 3 Answer: C | Question # 4 Answer: C | Question # 5 Answer: A |


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