Update Oracle 18c/21c export scripts and documentation

- Increase LXC 108 memory from 4GB to 8GB + 2GB swap
- Add manual startup/shutdown instructions for Oracle containers
- Document CDB/PDB architecture and correct connection strings
- Fix export-roa2.sh: use XEPDB1 PDB for Oracle 18c, separate DMPDIR
- Fix export-roa2.ps1: dual DMPDIR paths, auto-start containers
- Add container/database status checks before export
- Add TNS entries with SERVICE_NAME=XEPDB1 (not SID=XE)
- Document DBMS_CUBE_EXP warnings as harmless

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

proxmox/lxc108-oracle/scripts/export-roa2.sh

@@ -2,26 +2,58 @@
 # Export CONTAFIN_ORACLE și FIRMANOUA, arhive separate tar.gz
 # Rulează din LXC 108: ./export-roa2.sh [18|21]
 # 18 = Oracle 18c (compatibil 11g/18c/19c) | 21 = Oracle 21c (default)
+#
+# Exemple:
+#   ./export-roa2.sh 18   # Export din Oracle 18c pe port 1522
+#   ./export-roa2.sh 21   # Export din Oracle 21c PDB roa2 pe port 1521
+#   ./export-roa2.sh      # Default: Oracle 21c
 
-DMPDIR="/opt/oracle/oradata/dmpdir"
 DATE=$(date +%Y%m%d_%H%M%S)
 SCHEMAS="CONTAFIN_ORACLE FIRMANOUA"
 ORACLE_VER=${1:-21}
 
 if [ "$ORACLE_VER" == "18" ]; then
     CONTAINER="oracle18-xe"
-    PORT="1521"
-    SERVICE="XE"
-    SUFFIX="_v18"
+    PORT="1521"           # Port intern container (extern e 1522)
+    SERVICE="XEPDB1"      # Oracle 18c PDB (nu CDB!)
+    DMPDIR="/opt/oracle18/oradata/dmpdir"  # Volum separat pentru 18c
+    SUFFIX="_v11.2"
     VERSION="11.2"
-    echo "=== Export Oracle 18c (compatibil 11g/18c/19c) - $DATE ==="
+    echo "=== Export Oracle 18c PDB XEPDB1 (compatibil 11g/18c/19c) - $DATE ==="
 else
     CONTAINER="oracle-xe"
     PORT="1521"
-    SERVICE="roa2"
-    SUFFIX="_v21"
-    VERSION="12"
-    echo "=== Export Oracle 21c - $DATE ==="
+    SERVICE="roa2"        # Oracle 21c PDB roa2
+    DMPDIR="/opt/oracle/oradata/dmpdir"    # Volum pentru 21c
+    SUFFIX="_v19"
+    VERSION="19"
+    echo "=== Export Oracle 21c PDB roa2 - $DATE ==="
+fi
+
+# Verifică că containerul Docker rulează
+if ! docker ps --format '{{.Names}}' | grep -q "^${CONTAINER}$"; then
+    echo "EROARE: Containerul $CONTAINER nu rulează!"
+    echo ""
+    echo "Pornește-l cu: docker start $CONTAINER"
+    echo "Apoi așteaptă ~60s pentru startup Oracle."
+    exit 1
+fi
+
+# Verifică că baza de date Oracle e OPEN
+DB_STATUS=$(docker exec $CONTAINER bash -c "echo 'SELECT status FROM v\$instance;' | sqlplus -s / as sysdba" 2>/dev/null | grep -E "OPEN|MOUNTED")
+if [ -z "$DB_STATUS" ]; then
+    echo "EROARE: Baza de date Oracle nu e disponibilă!"
+    echo "Containerul rulează dar Oracle nu e OPEN."
+    echo "Verifică: docker logs $CONTAINER --tail 20"
+    exit 1
+fi
+echo "Oracle status: $DB_STATUS"
+
+# Verifică că DMPDIR există
+if [ ! -d "$DMPDIR" ]; then
+    echo "EROARE: Director $DMPDIR nu există!"
+    echo "Creează-l cu: mkdir -p $DMPDIR && chmod 777 $DMPDIR"
+    exit 1
 fi
 
 cd $DMPDIR