Huawei RAID 2.0+ CKG: Same Disk Group or Different?
Short answer
B The statement is false because a Huawei RAID 2.0+ CKG is built from chunks on different disks within the same disk group, not from different disk groups.
Question
Key Takeaways
It tests whether you can separate the CKG (the RAID unit inside a disk group) from the disk group itself, and the main trap is accepting the true phrase “different disks” while missing “different disk groups.”
This H13-611 item tests the Huawei RAID 2.0+ chunk group (CKG) and its disk-group boundary. The statement is false (B): a CKG gathers chunks from different disks in the same disk group, not across different disk groups.
Common mistake: Choosing A because a CKG does span multiple disks is only half true. The chunks must come from disks in the same disk group, and the option’s “different disk groups” makes the statement false.
Expert Analysis
CKG belongs inside one disk group. In Huawei RAID 2.0+, a chunk group (CKG) is the RAID-formed unit that aggregates chunks selected from different physical disks, but those disks must be members of the same disk group. The disk group is the pool-level fault and administration boundary; the CKG is the RAID algorithm boundary within it. Therefore a CKG does not draw chunks from “different disk groups.”
Why option B is correct. The statement adds “different disk groups,” which crosses the wrong boundary. Option B (False) is correct: the described cross-disk-group composition is not a CKG. A true CKG is composed of chunks from different disks in the same disk group, so the qualifier “different disk groups” is the decisive error.
The trap the comment identifies. A learner comment explains that “ckg is formed from chunks from the same disk group.” That matches Huawei’s model and exposes why option A is tempting: the first half—chunks from different disks—is true, so the sentence looks right until the last phrase. The same-disk-group constraint is not incidental; it is what makes the CKG’s RAID protection and reconstruction scope predictable. If chunks were allowed across disk groups, the CKG would no longer align with the disk group’s failure and management domain.
How to hold the boundary. Remember: disk group = container; CKG = RAID group built inside that container from chunks on separate disks. Multiple CKGs can coexist in one disk group, and each CKG spans disks within it, not outside it. On exam day, read the boundary terms—same vs. different disk group—as the decisive qualifier.
Exam Strategy
For RAID 2.0+ questions, underline the container boundary nouns—disk, disk domain, disk group, CKG—before judging true or false. A statement can be correct about spanning disks and still be false because it crosses a disk-group boundary. Translate each option into a simple hierarchy: disk → disk group → CKG → LUN, then check whether the stated relationship moves sideways or downward. This technique also catches traps about hot-spare domains, reconstruction scope and chunk placement.
Frequently Asked Questions
What is a CKG in Huawei RAID 2.0+?
Can a CKG include chunks from multiple disk groups?
Why is the statement in this question false?
Community Votes
100% of anonymous learners picked answer B. Votes are pick records left by other test-takers — they are not the verified answer.
Discussion 1 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 1
-
10c5cfe 👍 1 Answered Bckg is formed from chunks from the same disk group.
Reader comments & corrections
No reader corrections yet — spotted an error or have a note? Share it below.