D-ISM-FN-23 Exam Dumps : Dell Information Storage and Management Foundations 2023 Exam

To calculate MTTR, we need to convert the hours into minutes. Here are the steps:

• Monday: Port 7 was down from 4 PM to 11 PM. That’s 7 hours or 420 minutes.
• Wednesday: Port 7 was down from 2 PM to 10 PM. That’s 8 hours or 480 minutes.
• Friday: Port 7 was down from 5 AM to11 AM. That’s 6 hours or 360 minutes.
• Total corrective maintenance time = 420 + 480 + 360 = 1260 minutes
• Number of repairs = 3
• MTTR = Total corrective maintenance time / Number of repairs
• MTTR = 1260 / 3 = 420 minutes

Therefore, the MTTR of Port 7 is 420 minutes.

• DRAM (Dynamic Random-Access Memory) offers the highest I/O performance due to its extremely low latency and high-speed access capabilities.
• SCM (Storage Class Memory) follows DRAM, providing high performance but with slightly higher latency than DRAM.
• SSDs (Solid State Drives) come next, offering fast access times but slower than SCM and DRAM.
• SATA (Serial ATA) drives are the slowest among these options, as they typically use mechanical components (in the case of HDDs) and have lower data transfer rates compared to SSDs.

References: Dell Information Storage and Management V5 documents Dell Technologies Info Hub​(Dell Technologies Info Hub)

• Multi-Site Remote Replication Solution: This type of solution is implemented to provide redundancy and high availability by replicating data across multiple geographic locations.
• Importance: The primary goal is to ensure that data protection is not compromised in the event of a single site failure, which can be due to various reasons like natural disasters, power outages, or other catastrophic events.
• Data Protection: By having multiple sites, data remains accessible and protected even if one site becomes non-operational, thus ensuring business continuity and disaster recovery.

References: Dell ISM V5 Course, Module on Remote Replication and Data Protection Strategies.