SQL Server Database Architecture













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November 3, 2018 at 2:15 PM
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Always On FailOver Events

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We can run below PowerShell and SQL Server commands when we want to find ou when the failover has happened. cls   Get-winEvent -ComputerName   ListerNameHere   -filterHashTable @{logname = 'Microsoft-Windows-FailoverClustering/Operational' ; id = 1641 } |   Where-Object { $_ . Timecreated -like '*05/09/2020*' } | Format-Table -AutoSize -Wrap <# 35201-->timeout alert run this by changing -LogName to System 41-->41 is power shutdown run this in system #> clear Get-EventLog -LogName Application -After ( Get-Date ) . AddHours( -48 ) | Where-Object { $_ . EventID -in ( 1100 , 1074 , 35201,41,1561,7024,1135,7032,1146 )} | Format-Table -AutoSize -Wrap cls  Get-EventLog ` -LogName System |Where-Object{$_.EventID -in (1054,1053,1055,1138,1141,1142,5140,5142,1559,1560,1563,1588,1068,5144,1562,5143,5168,1564,1177)}|Format-Table -AutoSize -Wrap EXEC sp_readerrorlog 0,1,'lease worker' EXEC sp_readerrorlog 0,1,'...
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SSAS Cube or Database backup with Powershell command "Backup-AsDatabase"

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Run the full code from Load assembly section. # Load the assembly #[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.AnalysisServices") | Out-Null # Create the server object $server = New-Object Microsoft.AnalysisServices.Server $server . Connect ( "localhost" ) # Or your SSAS instance name #Date Converion with minutes and seconds $date = ( get-date ).ToString( "MM_dd_yyyy_hh_mm_ss" ) $Server = New-Object Microsoft.AnalysisServices.Server $Server .Connect( "MAPS\TEST" ) $dbservers = $Server .Databases| Select-Object Name,ParentServer $dbservers | ForEach -Object{ $inddb = $_ #The "Backup-AsDatabase" is especially for SSAS cube backup and downloaded from "SQLServer" powershell module Backup-ASDatabase -BackupFile "E:\MAPS_TEST\SSAS_BACKUP\NEW\ $( $ inddb.Name) _ $( $ date) .abf" -Name $inddb .Name -Verbose -Server $inddb .ParentServer Write-Host "SSAS cube backup [ $( $ i...
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Rule "Not Clustered o the Cluster Service is up and online. " FAILED, The machine is clustered but the cluster is not online.

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One day in one of my Active-Passive cluster environments while patching SQL Server 2012 environment I found the below Error. Here are the observations 1)   Failover cluster Health is good, all the roles, drives and nodes are running fine. Both the nodes are running pinging one to another.      Though the Error message says cluster is disabled or needs to start, cluster service is running fine in the services.msc Below are the error screenshots. The below command did the trick in my environment. Seems to be issue with MOF files. mofcomp C:\Windows\System32\WBEM\cimwin32.mof
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