- Exam Code: C4090-453
- Exam Name: IBM System Storage DS8000 Technical Solutions V3
- Certification Provider: IBM
- Corresponding Certification:IBM Certified Specialist
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IBM C4090-453 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Storage Management and Operations | - Performance monitoring and optimization - Volume management and provisioning |
| Topic 2: Installation and Configuration | - Initial system setup and planning - Host attachment and connectivity configuration |
| Topic 3: DS8000 Architecture and Concepts | - System architecture overview - Hardware components and virtualization concepts |
| Topic 4: Copy Services | - FlashCopy functions - Global Mirror (asynchronous replication) - Metro Mirror (PPRC synchronous replication) |
| Topic 5: Troubleshooting and Maintenance | - Problem determination and diagnostics - System maintenance procedures |
IBM System Storage DS8000 Technical Solutions V3 Sample Questions:
A mainframe customer would like to receive a proposal for a mainframe storage system with 120 TB raw capacity. The mainframe server load is not too high, and they need drives with the lowest possible power consumption to keep operating costs low. The customer will not increase the capacity of their mainframe applications in the future but rather invest later into their Power servers.
Which of the following solutions best meets these requirements at the lowest cost?
- A. Offer a DS8870 with the largest available capacity SATA drives
- B. Offer a DS8870 with standard cabling and the largest available capacity SAS drives
- C. Offer a DS8870 with business class cabling and the largest available capacity SAS drives
- D. Offer a DS8870 with the largest available capacity EC drives
Correct Answer: C 🗳️
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. Once the SNMP alerts have been received the process will restart automatically
- B. The problem can be fixed manually once the SNMP alerts are spotted
- C. Total Storage Productivity Center for Data
- D. The SNMP alerts are enough to trigger the recovery and then fix the problem
Correct Answer: B 🗳️
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 = 258TB, FlashCopy = 258TB, PAV = 258TB, EICON = Yes
- B. OEL = 173TB, MM = 87TB, FlashCopy = 48TB1 PAV = 87TB, FICON = Yes
- C. OEL = 258TB, MM = 141TB, FlashCopy = 141TB, PAV = 1 17TB, EICON = Yes
- D. OEL = 258TB, MM = S7TB, FlashCopy = 87TB, PAV = 87TB, FICON = Yes
Correct Answer: C 🗳️
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 4 GB for all cache sizes up to 64 GB. and 16 GB for all overall cache sizes over 64 GB
- B. NVS size is 1/32 scale (in minimum 1 GB) of the overall processor memory
- C. NVS size is a part of the SARC algorithm and adapts automatically depending on the actual workload of the customer
- D. NVS size can be adjusted according to customer demand using the CLI
Correct Answer: B 🗳️
What factor in the architecture of the DSS000 allows for concurrent microcode updates to be performed?
- A. Built-in redundancy
- B. Call Home and Dial-in support
- C. Subsystem Device Drivers
- D. Control-unit Initiated Reconfiguration support
Correct Answer: A 🗳️
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