| Previous | Next |
| STATUS_VOLMGR_DISK_LAYOUT_NON_BASIC_BETWEEN_BASIC_PARTITIONS | STATUS_VOLMGR_DISK_LAYOUT_PARTITIONS_TOO_SMALL |
STATUS_VOLMGR_DISK_LAYOUT_NOT_CYLINDER_ALIGNED
STATUS_VOLMGR_DISK_LAYOUT_NOT_CYLINDER_ALIGNED is a legacy-layout compatibility check. The proposed partition boundary does not meet the alignment rule used by this Volume Manager operation; it is different from a filesystem cluster-size choice and from a generic low-space condition.
Modern tools normally work in logical block addresses and use their own alignment policy. This status can still appear when older APIs, imported layouts, or raw partitioning code supply a geometry-derived layout. Treat it as evidence that the layout producer and the target disk geometry assumptions differ.
What to check
- Identify the tool or API that constructed the layout and whether it used legacy CHS/cylinder assumptions.
- Read the disk's actual layout and logical-sector information instead of reusing offsets from a different disk model or virtual disk.
- Do not "fix" the alignment by editing a start offset in isolation: changing an existing partition boundary can destroy the data it contains.
Microsoft: DRIVE_LAYOUT_INFORMATION_EX
Microsoft: IOCTL_DISK_SET_DRIVE_LAYOUT_EX
Microsoft: Volume Manager error codes
Looking for a different code? Search another status or error code.