dbatools

1.1.19

functions/Get-DbaSuspectPage.ps1

                                function Get-DbaSuspectPage {

    <#

    .SYNOPSIS

        Returns data that is stored in SQL for Suspect Pages on the specified SQL Server Instance

    .DESCRIPTION

        This function returns any records that were stored due to suspect pages in databases on a SQL Server Instance.

    .PARAMETER SqlInstance

        The target SQL Server instance or instances

    .PARAMETER SqlCredential

        Login to the target instance using alternative credentials. Accepts PowerShell credentials (Get-Credential).

        Windows Authentication, SQL Server Authentication, Active Directory - Password, and Active Directory - Integrated are all supported.

        For MFA support, please use Connect-DbaInstance.

    .PARAMETER Database

        The database to return. If unspecified, all records will be returned.

    .PARAMETER EnableException

        By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.

        This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting.

        Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch.

    .NOTES

        Tags: Pages, DBCC

        Author: Garry Bargsley (@gbargsley), http://blog.garrybargsley.com

        Website: https://dbatools.io

        Copyright: (c) 2018 by dbatools, licensed under MIT

        License: MIT https://opensource.org/licenses/MIT

    .LINK

        https://dbatools.io/Get-DbaSuspectPage

    .EXAMPLE

        PS C:\> Get-DbaSuspectPage -SqlInstance sql2016

        Retrieve any records stored for Suspect Pages on the sql2016 SQL Server.

    .EXAMPLE

        PS C:\> Get-DbaSuspectPage -SqlInstance sql2016 -Database Test

        Retrieve any records stored for Suspect Pages on the sql2016 SQL Server and the Test database only.

    #>

    [CmdletBinding()]

    param (

        [parameter(Mandatory, ValueFromPipeline)]

        [DbaInstanceParameter[]]$SqlInstance,

        [object]$Database,

        [PSCredential]$SqlCredential,

        [switch]$EnableException

    )

    process {

        foreach ($instance in $SqlInstance) {

            try {

                $server = Connect-DbaInstance -SqlInstance $instance -SqlCredential $SqlCredential -MinimumVersion 9

            } catch {

                Stop-Function -Message "Failure" -Category ConnectionError -ErrorRecord $_ -Target $instance -Continue

            }

            $sql = "Select

            DB_NAME(database_id) as DBName,

            file_id,

            page_id,

            CASE event_type

            WHEN 1 THEN '823 or 824'

            WHEN 2 THEN 'Bad Checksum'

            WHEN 3 THEN 'Torn Page'

            WHEN 4 THEN 'Restored'

            WHEN 5 THEN 'Repaired (DBCC)'

            WHEN 7 THEN 'Deallocated (DBCC)'

            END as EventType,

            error_count,

            last_update_date

            from msdb.dbo.suspect_pages"

            try {

                $results = $server.Query($sql)

            } catch {

                Stop-Function -Message "Issue collecting data on $server" -Target $server -ErrorRecord $_ -Continue

            }

            if ($Database) {

                $results = $results | Where-Object DBName -EQ $Database

            }

        }

        foreach ($row in $results) {

            [PSCustomObject]@{

                ComputerName   = $server.ComputerName

                InstanceName   = $server.ServiceName

                SqlInstance    = $server.DomainInstanceName

                Database       = $row.DBName

                FileId         = $row.file_id

                PageId         = $row.page_id

                EventType      = $row.EventType

                ErrorCount     = $row.error_count

                LastUpdateDate = $row.last_update_date

            }

        }

    }

}

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