Oracle DR: Add naming convention to RMAN backups for smart restore selection

- Add FORMAT to rman_backup.txt: L0_*, ARC_*, SPFILE_*, CF_*
- Add FORMAT to rman_backup_incremental.txt: L1_*, ARC_*, SPFILE_*, CF_*
- Update rman_restore_from_zero.ps1 TestMode to select files by naming convention
- Select only latest L0 backup set + all L1 incrementals/archives (faster DR tests)
- Backward compatible with old autobackup naming (fallback to copy all)
- Fixes missing datafiles issue (previously only copied 8 files, now copies full backup set)

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

oracle/standby-server-scripts/rman_restore_from_zero.ps1

@@ -250,29 +250,60 @@ if ($TestMode) {
 # Select backup files based on mode (TestMode vs Standalone)
 try {
     if ($TestMode) {
-        # TEST MODE: Copy only latest full backup + everything after it (optimal for weekly testing)
-        Write-Host "[INFO] TEST MODE: Selecting latest full backup + incrementals for faster restore..." -ForegroundColor Cyan
+        # TEST MODE: Copy latest L0 backup set + all incrementals/archives
+        Write-Host "[INFO] TEST MODE: Selecting latest backup set using naming convention..." -ForegroundColor Cyan
         
-        # Find latest full backup (Level 0 - DAILY_FULL_COMPRESSED)
-        $fullBackups = Get-ChildItem "F:\ROA\autobackup\*DAILY_FULL*.BKP" -ErrorAction Continue | 
+        # Check if new naming convention is in use (L0_*, L1_*, etc.)
+        $l0Backups = Get-ChildItem "F:\ROA\autobackup\L0_*.BKP" -ErrorAction Continue | 
             Sort-Object LastWriteTime -Descending
         
-        if ($fullBackups.Count -eq 0) {
-            Write-Host "ERROR: No full backup found on F: drive!" -ForegroundColor Red
-            Write-Host "       Cannot proceed with restore - need at least one full backup"
-            exit 1
+        if ($l0Backups.Count -gt 0) {
+            # New naming convention detected - use smart selection
+            Write-Host "[INFO] Using naming convention for optimized backup selection" -ForegroundColor Cyan
+            
+            $latestL0 = $l0Backups[0]
+            # Extract date from filename: L0_ROA_20251011_123_1.BKP -> 20251011
+            if ($latestL0.Name -match 'L0_\w+_(\d{8})_') {
+                $backupDate = $Matches[1]
+                Write-Host "[INFO] Latest Level 0 backup date: $backupDate" -ForegroundColor Cyan
+                Write-Host "       Base file: $($latestL0.Name)" -ForegroundColor Cyan
+                
+                # Select all files from this backup set:
+                # - All L0_*_<date>_* (all pieces of Level 0)
+                # - All L1_*_<date>_* or later (incrementals from same day or after)
+                # - All ARC_*_<date>_* or later (archive logs)
+                # - All SPFILE_* and CF_* (needed for restore)
+                
+                $backupFiles = Get-ChildItem "F:\ROA\autobackup\*.BKP" -ErrorAction Continue | 
+                    Where-Object {
+                        $_.Name -match "^L0_\w+_${backupDate}_" -or      # Level 0 pieces
+                        $_.Name -match "^L1_\w+_\d{8}_" -or              # All Level 1 incrementals
+                        $_.Name -match "^ARC_\w+_\d{8}_" -or             # All archive logs
+                        $_.Name -match "^SPFILE_\w+_${backupDate}_" -or  # SPFILE from same day
+                        $_.Name -match "^CF_\w+_${backupDate}_" -or      # Controlfile from same day
+                        $_.Name -match "^O1_MF_S_"                       # Autobackup control files (always needed)
+                    }
+                
+                Write-Host "[INFO] Selected $($backupFiles.Count) files for restore:" -ForegroundColor Cyan
+                Write-Host "       - Level 0 pieces for date $backupDate" -ForegroundColor Cyan
+                Write-Host "       - All Level 1 incrementals" -ForegroundColor Cyan
+                Write-Host "       - All archive logs" -ForegroundColor Cyan
+                Write-Host "       - SPFILE and Control file backups" -ForegroundColor Cyan
+                
+            } else {
+                Write-Host "WARNING: Cannot parse date from L0 filename, using ALL L0/L1/ARC files" -ForegroundColor Yellow
+                $backupFiles = Get-ChildItem "F:\ROA\autobackup\*.BKP" -ErrorAction Continue | 
+                    Where-Object { $_.Name -match "^(L0_|L1_|ARC_|SPFILE_|CF_)" }
+            }
+            
+        } else {
+            # Old naming convention (autobackup format) - fallback to copying all
+            Write-Host "[INFO] Old naming convention detected - copying ALL backups for safety" -ForegroundColor Yellow
+            Write-Host "       (New naming convention will be used after next backup runs)" -ForegroundColor Yellow
+            $backupFiles = Get-ChildItem "F:\ROA\autobackup\*.BKP" -ErrorAction Continue
         }
         
-        $latestFull = $fullBackups[0]
-        $cutoffTime = $latestFull.LastWriteTime
-        
-        # Get all backups >= latest full backup timestamp (includes incrementals, controlfiles, SPFILE backups)
-        $backupFiles = Get-ChildItem "F:\ROA\autobackup\*.BKP" -ErrorAction Continue | 
-            Where-Object { $_.LastWriteTime -ge $cutoffTime }
-        
-        Write-Host "[INFO] Latest full backup: $($latestFull.Name)" -ForegroundColor Cyan
-        Write-Host "       Timestamp: $($latestFull.LastWriteTime)" -ForegroundColor Cyan
-        Write-Host "       Selected $($backupFiles.Count) files from latest backup set (saves ~60-70% copy time)" -ForegroundColor Cyan
+        Write-Host "[INFO] Total files selected: $($backupFiles.Count)" -ForegroundColor Cyan
         
     } else {
         # STANDALONE MODE: Copy ALL backups (disaster recovery - maximum safety with fallback)