{process name} ({process id}) Database ‘{name}’: The database engine lost unused pages {number}-{number} while attempting space reclamation on a B-Tree (ObjectId {id}). The space may not be reclaimed again until offline defragmentation is performed.

Details
Product: Exchange
Event ID: 603
Source: ESE98
Version: 6.0
Component: Extensible Store Engine
Symbolic Name: SPACE_LOST_ON_FREE_ID
Message: {process name} ({process id}) Database ‘{name}’: The database engine lost unused pages {number}-{number} while attempting space reclamation on a B-Tree (ObjectId {id}). The space may not be reclaimed again until offline defragmentation is performed.
   
User Action
If the problem persists, contact Microsoft Product Support Services.

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