Understanding Logging and Recovery in SQL Server

The below information provided by Paul S Randal for understanding the Logging and Recovery

 Understanding Logging and Recovery

Comments

Post a Comment

Popular posts from this blog

Always On FailOver Events

Image
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,'...
Read more

The transaction log for database is full due to 'OLDEST_PAGE'

When I see the 'OLDEST_PAGE' in log_reuse_wait_desc column and not allowing to me to shrink the log file of database I followed the below steps 1) When you see 'OLDEST_PAGE' run CHECKPOINT on that particular database 2) Take the Transaction log backup of that particular database 3) Try to shrink the log file of database These steps worked for me when I encountered this issue in my environment.
Read more

SSAS Cube or Database backup with Powershell command "Backup-AsDatabase"

Image
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...
Read more