Does OceanStor 18510 V5 Support Eight Bad Seven?

Question

Options

• ATRUE
• BFALSE

• A
  9% (4)
• B
  91% (41)

Explanation

Option B (FALSE) is correct because the OceanStor 18510 V5 does not support the "Eight Bad Seven" (8+7) erasure coding scheme, which would theoretically allow 7 simultaneous disk failures within an 8-disk group. Huawei's OceanStor V5 series supports specific, validated erasure coding configurations, and the 8+7 ratio exceeds the supported fault-tolerance parameters for this platform. The 18510 V5 is designed with more conservative redundancy ratios (such as 4+2 or 8+2 EC schemes) that balance data protection with storage efficiency and performance.

Option A is incorrect because it assumes the array can sustain a near-equal number of parity disks to data disks (7 parity for 8 data), a configuration the 18510 V5 hardware and firmware architecture does not certify or implement.

Memory tip: Think of the "18510" as a high-density but bounded system - it protects heavily, but not to the extreme of losing nearly as many disks as you keep. If the parity count nearly matches the data count, flag it as unsupported on V5 hardware.

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