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Huawei H19-308_V4.0 Exam - Topic 9 Question 1 Discussion

Actual exam question for Huawei's H19-308_V4.0 exam
Question #: 1
Topic #: 9
[All H19-308_V4.0 Questions]

Through what feature does Dorado support stable and convenient system upgrade?

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Suggested Answer: B

Huawei OceanStor Dorado supports Non-disruptive Upgrade (NDU), which allows the storage system's software (firmware) to be upgraded while services are running. In a traditional storage environment, an upgrade might require a system reboot or cause a failover that interrupts I/O for several seconds or minutes. However, Dorado's NDU leverages the multi-controller architecture and advanced caching mechanisms.

During an NDU, the system upgrades controllers one by one or in batches. While one controller is being upgraded and rebooted, its workloads are transparently taken over by other active controllers in the same cluster. Because the host-side multipathing software handles the path failover and the storage system maintains cache mirroring, the application servers experience zero downtime and negligible performance impact. This feature is essential for mission-critical environments that require 24/7 availability and cannot afford scheduled maintenance windows for routine software updates.


by Theola at Jan 24, 2026, 03:09 PM

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Hyman
15 days ago
HyperZoom sounds cool, but it's not the answer here.
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Irma
20 days ago
Wait, are you sure about that?
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Murray
25 days ago
B is the right choice, no doubt!
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Lawana
1 month ago
I thought it was A) SmartMatrix?
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Laine
1 month ago
Definitely B) Non-disruptive Upgrade!
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Coral
1 month ago
B) Non-disruptive Upgrade - the only way to upgrade without disrupting your system. Upgrade like a boss!
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Fairy
2 months ago
B) Non-disruptive Upgrade is the answer. Dorado makes upgrading a breeze.
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Lawrence
2 months ago
I'd go with B. Non-disruptive Upgrade - it's the upgrade feature that keeps the system stable and running.
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Orville
2 months ago
Definitely B. Dorado's Non-disruptive Upgrade is the feature you want to keep your system running smoothly.
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Genevieve
2 months ago
B) Non-disruptive Upgrade is the way to go for a stable and convenient system upgrade.
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Roslyn
2 months ago
I’m leaning towards B) Non-disruptive Upgrade too. It seems to align with what we discussed about maintaining system stability during updates.
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Hester
2 months ago
I feel like HyperZoom was mentioned in a similar context, but I can't connect it to system upgrades. Could it be a distraction?
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Maybelle
3 months ago
I remember something about SmartMatrix, but I can't recall if it specifically relates to upgrades. Maybe it's a different feature?
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Matilda
3 months ago
I think the answer might be B) Non-disruptive Upgrade, but I'm not entirely sure. It sounds familiar from our last practice session.
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Micaela
4 months ago
Alright, time to put on my thinking cap. Stable and convenient system upgrade... Hmm, I'm leaning towards B, but I'll double-check my understanding just to be sure.
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Jose
4 months ago
I'm a little lost on this one. The options don't seem super familiar to me. Guess I'll have to make an educated guess and hope for the best.
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Wilford
4 months ago
Ah, I remember learning about this in class. I'm pretty confident it's B, non-disruptive upgrade. That sounds like the right feature to support stable system upgrades.
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Teri
4 months ago
Okay, let me think this through. I know Dorado has some kind of upgrade feature, so it's probably one of those options. I'll have to review my notes on that.
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Malcolm
4 months ago
Hmm, this one's tricky. I think it might be B, but I'm not totally sure. Gotta read the question carefully.
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