Pass the actual test with the help of C4090-451 study guide
Last Updated: Aug 24, 2026
No. of Questions: 150 Questions & Answers with Testing Engine
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| Certification Vendor: | IBM |
|---|---|
| Exam Name: | IBM Midrange Storage Technical Support V3 |
| Exam Number: | 000-451 |
| Available Languages: | English |
| Exam Format: | Multiple choice |
| Recommended Training: | IBM Training and Learning Resources |
| Exam Registration: | IBM Certification Portal |
| Sample Questions: | IBM C4090-451 Sample Questions |
| Exam Way: | Pearson VUE test center or online proctored exam |
| Pre Condition: | Recommended experience with storage systems and IBM midrange storage solutions |
| Section | Objectives |
|---|---|
| Topic 1: IBM Midrange Storage Architecture | - IBM midrange storage product overview (e.g., Storwize / FlashSystem family) - System architecture and components |
| Topic 2: Administration and Troubleshooting | - Monitoring and performance management - Fault diagnosis and problem resolution |
| Topic 3: Storage Fundamentals | - Storage networking concepts (SAN, zoning, LUNs) - Block storage vs file storage basics |
| Topic 4: Installation and Configuration | - Storage provisioning and volume management - Initial system setup and configuration |
The IBM C4090-451 exam, officially titled Midrange Storage Technical Support V3, is the required test for earning the IBM Certified Specialist - Midrange Storage Technical Support V3 certification, a credential at the Professional level. Passing it validates the skills IBM expects from certified professionals.
IBM asks candidates to meet the following requirement before registering: Recommended experience with storage systems and IBM midrange storage solutions. Exam policies do change, so confirm the latest details on the official exam page before you book.
You can book your seat through the official registration channels below:
The C4090-451 exam is delivered in the following format: Pearson VUE test center or online proctored exam.
IBM recommends the following official training for this exam:
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The IBM Midrange Storage Technical Support V3 exam is organized into 4 major domains. Some of the key domains include:
Scroll up to the Exam Topics section for the complete breakdown, and use it to plan how much study time each domain deserves.
Question 1
The exhibit shows a non-IBM tape library setup, where Fabric A, in addition to controlling tape drives 1 through 3, also controls the tape library controller. In the event of Fabric A loss, all control between host and library would be lost and all drives become inaccessible.
With an equivalent IBM library, in the event of Fabric A failure, which drives would be affected?
A. Drives 1 through 3 would be inaccessible, but drives 4-6 would continue to function due to the redundant control path on Fabric B (all IBM libraries provide dual-path controllers as standard)
B. All drives would be accessible due to the redundant control path on Fabric B (all IBM libraries provide dual-path controllers as standard)
C. All drives would be inaccessible, as the only path to the controller is lost
D. All drives would be accessible as IBM provides control paths via the tape devices meaning multiple control paths exist
Question 2
The customer is having a problem adding LUNs from a SAN-attached DS5020. The LUNs are showing up multiple times. The hosts are running Windows 2008 R2 Enterprise.
How can this situation be resolved?
A. Install SDDDSM drivers and update HBA firmware
B. Check the default HBA settings
C. Install RDAC for DS5020
D. Install IBM MPIO Device Specific Module (DSM)
Question 3
Considering the TS7600 Appliance family with ProtecTER V3.2, which of the following is a supported interface for host backup?
A. Symantec Open Storage Interface (OST)
B. Virtual Tape Library Emulation with SAS Interface
C. Quick File System (QFS)
D. Linear Tape File System (LTFS)
Question 4
Which option is a chargeable feature in the Storwize V7000?
A. Thin Provisioning
B. Easy Tier
C. Real-time Compression
D. FlashCopy
Question 5
What type of data protection is used by the FlashSystem 810?
A. Dynamic Disk Pooling
B. RAID Dual Parity
C. Variable Stripe RAID
D. Disk Mirroring
Solutions:
| Question 1 Answer: D | Question 2 Answer: D | Question 3 Answer: A | Question 4 Answer: C | Question 5 Answer: C |
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