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# Author:  Edward.Zhou -- <edgeman_03@163.com>
# Purpose: Windows平台下采用PowerShell使用rman自动备份oracle并上传备份到ftp,并根据日期自动保留所需备份
# Created: 2015/8/12

$env:ORACLE_SID="orcl"
$env:NLS_LANG="AMERICAN_AMERICA.AL32UTF8"

$NOWDATE=Get-Date -UFormat %Y_%m_%d
$NOWDATE1=Get-Date -UFormat %Y%m%d
$NOWTIME=Get-Date -UFormat %Y%m%d%H%M%S
$OLDDATE=((Get-Date).AddDays(-2)).ToString('yyyyMMdd')
$FTPOLDDATE=((Get-Date).AddDays(-2)).ToString('yyyy_MM_dd')

#建立备份目录基本环境
$BACKUPDIR="c:\bak\rman"

if ((Test-Path -Path $BACKUPDIR) -eq $false) {
	New-Item -Type directory -Path $BACKUPDIR
}

#rman备份

Write-Output "
run
{
allocate channel d1 type disk;
allocate channel d2 type disk;
allocate channel d3 type disk;
crosscheck backup;
sql 'alter system archive log current';
backup as compressed backupset full tag '$env:COMPUTERNAME-$env:ORACLE_SID-$NOWDATE' database format '$BACKUPDIR\db_%d_%T_%s';
sql 'alter system archive log current';
backup as compressed backupset archivelog all tag '$env:COMPUTERNAME-$env:ORACLE_SID-$NOWDATE' format '$BACKUPDIR\arch_%d_%T_%s' delete all input;
backup as compressed backupset current controlfile tag '$env:COMPUTERNAME-$env:ORACLE_SID-$NOWDATE' format '$BACKUPDIR\con_%d_%T_%s';
crosscheck archivelog all;
delete noprompt expired backup;
delete noprompt expired archivelog all;
delete noprompt obsolete;
release channel d1;
release channel d2;
release channel d3;
}
" | Out-File -Encoding Default -Force -FilePath $BACKUPDIR\rmanbak.txt 

rman target / cmdfile="$BACKUPDIR\rmanbak.txt" log="$BACKUPDIR\$env:COMPUTERNAME-$env:ORACLE_SID-rmanbak-$NOWTIME.log"
Remove-Item -Force -Path $BACKUPDIR\rmanbak.txt
Remove-Item -Force -Path $BACKUPDIR\* -Include *$OLDDATE* -Recurse


#上传备份至FTP方法一
Import-Module PSFTP
$FTP_HOST="1.1.1.1"
$FTP_USERNAME="backup"
$FTP_PASSWORD=ConvertTo-SecureString "backup" -AsPlainText -Force
$Credentials=New-Object System.Management.Automation.PSCredential($FTP_USERNAME,$FTP_PASSWORD)
Set-FTPConnection -Credentials $Credentials -Server ftp://$FTP_HOST -Session rmanbakSession -UsePassive -UseBinary -KeepAlive -ignoreCert
$Session=Get-FTPConnection -Session rmanbakSession

if ($Session -eq $null) {
	Set-FTPConnection -Credentials $Credentials -Server ftp://$FTP_HOST -Session rmanbakSession -UsePassive -UseBinary -KeepAlive -ignoreCert
}
if ((Get-FTPChildItem -Session $Session -Path / -ErrorAction SilentlyContinue -Filter rmanbak) -eq $null) {
    New-FTPItem -Session $Session -Path / -Name "rmanbak"
}
if ((Get-FTPChildItem -Session $Session -Path /rmanbak -ErrorAction SilentlyContinue -Filter $env:COMPUTERNAME) -eq $null) {
    New-FTPItem -Session $Session -Path /rmanbak -Name $env:COMPUTERNAME
}
if ((Get-FTPChildItem -Session $Session -Path /rmanbak/$env:COMPUTERNAME -ErrorAction SilentlyContinue -Filter $NOWDATE) -eq $null) {
    New-FTPItem -Session $Session -Path /rmanbak/$env:COMPUTERNAME -Name $NOWDATE
}
foreach($Filename in (Get-ChildItem -Path $BACKUPDIR -Recurse -Filter *$NOWDATE1*))
    {
        Add-FTPItem -Session $Session -Overwrite -BufferSize 102400 -Path /rmanbak/$env:COMPUTERNAME/$NOWDATE -LocalPath $BACKUPDIR\$Filename
    }
if ((Get-FTPChildItem -Session $Session -Path /rmanbak/$env:COMPUTERNAME -ErrorAction SilentlyContinue -Filter $FTPOLDDATE) -ne $null) {
    Remove-FTPItem -Path /rmanbak/$Env:COMPUTERNAME/$FTPOLDDATE -Session $Session -Recurse
}

#上传备份至FTP方法二
#$FTP_HOST="1.1.1.1"
#$FTP_USERNAME="backup"
#$FTP_PASSWORD="backup"
#
#Set-Location -Path $BACKUPDIR
#
#Write-Output "open $FTP_HOST
#user $FTP_USERNAME $FTP_PASSWORD
#bin
#mkdir rmanbak
#cd rmanbak
#mkdir $Env:COMPUTERNAME
#cd $Env:COMPUTERNAME
#mkdir $NOWDATE
#cd $NOWDATE
#lcd $NOWDATE
#mput *
#cd ..\$FTPOLDDATE
#mdelete *
#cd ..
#rmdir $FTPOLDDATE
#bye" | Out-File -Force -Encoding Default -FilePath $BACKUPDIR\ftp.cfg
#ftp -i -n -v -s:$BACKUPDIR\ftp.cfg
#Remove-Item -Force -Path $BACKUPDIR\ftp.cfg