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VDS_E_SECTOR_SIZE_ERROR
VDS_E_SECTOR_SIZE_ERROR means sector geometry supplied or returned for a LUN is invalid. VDS requires a nonzero power-of-two sector size below its maximum, because capacity, alignment and shrink calculations depend on exact block geometry.
Validate geometry at the provider boundary
- Read the LUN and associated disk bytes-per-sector values.
- Reject zero, non-power-of-two and implausibly large sector sizes before arithmetic.
- Check for multiplication overflow when converting sector counts to bytes.
Do not substitute a hard-coded 512-byte sector size simply to continue. Advanced-format and array LUNs can legitimately use other sizes, but the provider and host disk must report compatible geometry. A mismatch indicates provider, firmware or translation-layer problems that should be corrected before resizing.
LUN properties · Disk properties · MS-VDS error codes
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