605

Product Name

Event ID

605

Event Source

MSSQLSERVER

Component

SQLEngine

Symbolic

Name

WRONGPAGE

Message Text

Attempt to fetch logical page %S_PGID in database %d failed. It belongs to allocation

unit %I64d not to %I64d.

This error generally signifies page or allocation corruption in the specified database. SQL Server

detects corruption when reading pages belonging to a table either by following the page

linkages or by using the Index Allocation Map (IAM). All pages allocated to a table must belong

to one of the allocation units associated with the table. If the allocation unit ID contained in the

page header does not match an allocation unit ID associated with the table, this exception is

raised. The first allocation unit ID listed in the error message is the ID present in the page

header, and the second allocation unit value is the ID associated with the table.

A severity level of 21 indicates potential data corruption. Possible causes are a damaged page

chain, a corrupt IAM, or an invalid entry in the

sys.objects

catalog view for that object. These

errors are often caused by hardware or disk device driver failure.

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