Oracle DR: Optimize test speed by preserving service between tests

Performance improvements:
- cleanup_database.ps1: Skip service deletion (saves ~25s per test)
  - Remove oradim -delete, sc.exe delete, registry cleanup
  - Add SPFILE deletion to ensure PFILE-based startup
  - Service now persists between tests for reuse

- rman_restore_from_zero.ps1: Smart service check (saves ~15s per test)
  - Check if service exists before creating
  - Skip oradim -new if service already present
  - Only create service on first run or if missing

Total time savings: ~40 seconds per weekly DR test
Service lifecycle: Created once, reused indefinitely until manual cleanup

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

oracle/standby-server-scripts/cleanup_database.ps1

@@ -59,40 +59,18 @@ if ($service) {
 }
 Start-Sleep -Seconds 2
 
-Write-Host "[2/6] Stopping and deleting Oracle service + registry + instance..."
+Write-Host "[2/6] Oracle service cleanup skipped (service preserved for next test)"
+Write-Host "    Service will be reused for faster subsequent restores (~15s saved)"
 
-# Method 1: Use oradim to delete Oracle instance
+Write-Host "[3/6] Deleting database files + SPFILE..."
-$env:ORACLE_HOME = "C:\Users\Administrator\Downloads\WINDOWS.X64_193000_db_home"
-$env:PATH = "$env:ORACLE_HOME\bin;$env:PATH"
-& oradim -delete -sid ROA 2>&1 | Out-Null
-Write-Host "    Oracle instance deleted with oradim"
-
-# Method 2: Delete service directly (backup method)
-$service = Get-Service -Name "OracleServiceROA" -ErrorAction SilentlyContinue
-if ($service) {
-    Stop-Service -Name "OracleServiceROA" -Force -ErrorAction SilentlyContinue
-    Start-Sleep -Seconds 2
-    & sc.exe delete OracleServiceROA 2>&1 | Out-Null
-    Write-Host "    Oracle service deleted with sc"
-}
-
-# Method 3: Delete Oracle registry keys
-$regPath = "HKLM:\SOFTWARE\ORACLE\KEY_OraDB19Home1"
-Remove-ItemProperty -Path $regPath -Name "ORA_ROA_PFILE" -ErrorAction SilentlyContinue
-Remove-ItemProperty -Path $regPath -Name "ORA_ROA_AUTOSTART" -ErrorAction SilentlyContinue
-Remove-ItemProperty -Path $regPath -Name "ORA_ROA_SHUTDOWN" -ErrorAction SilentlyContinue
-Remove-ItemProperty -Path $regPath -Name "ORA_ROA_SHUTDOWNTYPE" -ErrorAction SilentlyContinue
-Remove-ItemProperty -Path $regPath -Name "ORA_ROA_SHUTDOWN_TIMEOUT" -ErrorAction SilentlyContinue
-Write-Host "    Registry keys cleaned"
-Start-Sleep -Seconds 2
-
-Write-Host "[3/6] Deleting database files..."
 Write-Host "    Deleting datafiles..."
 Remove-Item "C:\Users\oracle\oradata\ROA\*.dbf" -Force -ErrorAction SilentlyContinue
 Write-Host "    Deleting control files..."
 Remove-Item "C:\Users\oracle\oradata\ROA\*.ctl" -Force -ErrorAction SilentlyContinue
 Write-Host "    Deleting redo logs..."
 Remove-Item "C:\Users\oracle\oradata\ROA\*.log" -Force -ErrorAction SilentlyContinue
+Write-Host "    Deleting SPFILE (ensures PFILE-based startup)..."
+Remove-Item "$env:ORACLE_HOME\database\SPFILE*.ORA" -Force -ErrorAction SilentlyContinue
 
 Write-Host "[4/6] Deleting local FRA (backups are on F:\)..."
 if (Test-Path "C:\Users\oracle\recovery_area\ROA") {
@@ -117,15 +95,16 @@ Write-Host ""
 Write-Host "Current state:"
 Write-Host "  [YES] Oracle software installed"
 Write-Host "  [YES] PFILE exists (C:\Users\oracle\admin\ROA\pfile\initROA.ora)"
-Write-Host "  [NO]  Oracle service (will be created during restore)"
+Write-Host "  [YES] Oracle service (preserved, will be reused)"
+Write-Host "  [NO]  SPFILE (deleted to ensure PFILE startup)"
 Write-Host "  [NO]  Database files (will be restored from backups)"
 Write-Host "  [NO]  Control files (will be restored from backups)"
 Write-Host "  [NO]  Datafiles (will be restored from backups)"
 Write-Host ""
-Write-Host "VM is now in COMPLETELY CLEAN STATE!"
+Write-Host "VM is now in CLEAN STATE (service preserved)!"
 Write-Host ""
 Write-Host "Next step: Run D:\oracle\scripts\rman_restore_from_zero.ps1"
-Write-Host "  (It will create the Oracle service and restore the database)"
+Write-Host "  (It will reuse the existing Oracle service and restore the database)"
 Write-Host ""
 
 exit 0

oracle/standby-server-scripts/rman_restore_from_zero.ps1

@@ -81,21 +81,30 @@ Write-Host "STEP 2: RESTORE - Restore from F:\ backups"
 Write-Host "============================================"
 Write-Host ""
 
-# Step 2.1: Create Oracle service
+# Step 2.1: Check Oracle service (create only if missing)
-Write-Host "[2.1] Creating Oracle service from PFILE..."
+Write-Host "[2.1] Checking Oracle service..."
-if (-not (Test-Path "C:\Users\oracle\admin\ROA\pfile\initROA.ora")) {
+$service = Get-Service -Name "OracleServiceROA" -ErrorAction SilentlyContinue
+
+if ($service) {
+    Write-Host "[OK] Oracle service already exists, skipping creation (15s saved!)" -ForegroundColor Green
+    Write-Host "    Service will be reused for this restore"
+} else {
+    Write-Host "    Oracle service not found, creating from PFILE..."
+    
+    if (-not (Test-Path "C:\Users\oracle\admin\ROA\pfile\initROA.ora")) {
         Write-Host "ERROR: PFILE not found at C:\Users\oracle\admin\ROA\pfile\initROA.ora" -ForegroundColor Red
         Write-Host "Cannot create Oracle service without PFILE!"
         exit 1
-}
+    }
     
-& oradim -new -sid ROA -startmode auto -pfile "C:\Users\oracle\admin\ROA\pfile\initROA.ora" 2>&1 | Out-Null
+    & oradim -new -sid ROA -startmode auto -pfile "C:\Users\oracle\admin\ROA\pfile\initROA.ora" 2>&1 | Out-Null
-if ($LASTEXITCODE -ne 0) {
+    if ($LASTEXITCODE -ne 0) {
         Write-Host "ERROR: Failed to create Oracle service" -ForegroundColor Red
         exit 1
+    }
+    Write-Host "[OK] Oracle service created successfully (AUTOMATIC startup)"
+    Start-Sleep -Seconds 2
 }
-Write-Host "[OK] Oracle service created successfully (AUTOMATIC startup)"
-Start-Sleep -Seconds 2
 
 # Step 2.2: Startup NOMOUNT
 Write-Host "[2.2] Starting database in NOMOUNT mode..."