Dell EMC D-PWF-DS-23 Exam - Topic 5 Question 6 Discussion

Actual exam question for Dell EMC's D-PWF-DS-23 exam

Question #: 6
Topic #: 5

A customer application generates 2 GB/s writes The outage is under two hours. What capacity must be allowed for the journal?

A14.400 GB

B10.800 GB

C7,200 GB

D240 GB

Show Suggested Answer

Suggested Answer: B

To calculate the required journal capacity, we need to consider the maximum cumulative writes that might occur during an outage. The calculation is based on the application's write bandwidth and the duration of the supported outage. For an application generating 2 GB/s of writes, using a 2-hour outage (which is 7200 seconds), the journal capacity reservation needed is:

JournalCapacity=WriteBandwidthOutageDuration

JournalCapacity=2GB/s7200s=14400GB

However, since the question specifies that the outage is under two hours, we use the minimum outage allowance of 1 hour for the calculation, which is 3600 seconds. Therefore, the correct calculation is:

JournalCapacity=2GB/s3600s=7200GB

But considering the recommendation to use three hours in the calculations for safety, the needed capacity would be approximately 10.547 TB, which is roughly 10.800 GB12. Hence, the verified answer is 10.800 GB.

by Dana at May 12, 2024, 08:18 AM

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Dulce

3 months ago

Are we sure about that? Seems like a lot for just 2 hours.

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Belen

3 months ago

Totally agree, 14.4 GB makes sense!

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Ines

3 months ago

Wait, how do we get to 14.4 GB? Sounds off.

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Gwenn

4 months ago

I think it's actually 14.4 GB, not TB.

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Shizue

4 months ago

It's 2 GB/s for 2 hours, so that's 14.4 TB.

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Bethanie

4 months ago

I believe the answer is around 14.4 GB, but I’m not confident. I should have practiced more with these types of calculations!

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Kenny

4 months ago

I'm not entirely sure, but I feel like we might need to multiply the write speed by the duration in seconds. That could give us a clearer picture.

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Dorthy

4 months ago

I remember a similar question where we had to calculate journal capacity based on write speed. I think it was something like 10.8 TB for a longer period.

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Hannah

5 months ago

I think we need to calculate the total data written during the outage, which is 2 GB/s for two hours. That sounds like a lot!

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Karl

5 months ago

I think I've got it. If the outage is under 2 hours, that means it could be anywhere from 0 to 2 hours. So I'll calculate the maximum possible data written, which would be 2 hours at 2 GB/s, which is 14,400 GB.

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Louvenia

5 months ago

Wait, I'm a bit confused. Is the outage exactly 2 hours, or less than 2 hours? That could make a difference in the calculation.

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Layla

5 months ago

Okay, let's see. The customer application generates 2 GB/s, and the outage is under 2 hours. So I need to multiply the data rate by the time to get the total data written.

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Nida

5 months ago

Ah, good point. That makes sense. I'm feeling pretty confident about this now.

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Maurine

5 months ago

I'm pretty sure the second option is correct - multiple ERP vendors and customers can be assigned to one business partner. And the customer vendor integration configuration isn't required, which is good to know.

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Odette

5 months ago

Hmm, I'm a bit unsure about this. I know ifconfig is used to configure network interfaces, but I'm not sure about all the possible consequences. I'll have to think this through carefully.

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Armanda

5 months ago

High uncertainty in the industry definitely suggests a need for Scenario Planning! I think that option stands out the most from what we studied.

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Lezlie

5 months ago

I'm pretty sure the Boot Configuration Data store supports UEFI and BIOS, but I'm not sure about the other options. I'll need to think this through carefully.

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