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VSS_E_MAXIMUM_DIFFAREA_ASSOCIATIONS_REACHED
VSS_E_MAXIMUM_DIFFAREA_ASSOCIATIONS_REACHED Windows has reached the limit for shadow-copy storage associations. A VSS storage association maps a protected volume to the volume that supplies its diff area.
What to check
- Inventory existing associations and snapshots before creating another one.
- Remove only obsolete backup snapshots according to the retention policy; do not remove recovery points that are still required.
- Review the backup design so it reuses appropriate associations instead of creating an unnecessary new mapping for every job.
vssadmin list shadowstoragevssadmin list shadowsMicrosoft: vssadmin list shadowstorage
Microsoft: vssadmin list shadows
Microsoft: Volume Shadow Copy Service
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