Oracle DR: Complete Windows VM implementation and cleanup

Major changes: - Implemented Windows VM 109 as DR target (replaces Linux LXC) - Tested RMAN restore successfully (12-15 min RTO, 24h RPO) - Added comprehensive DR documentation: * DR_WINDOWS_VM_STATUS_2025-10-09.md - Current implementation status * DR_UPGRADE_TO_CUMULATIVE_PLAN.md - Plan for cumulative incremental backups * DR_VM_MIGRATION_GUIDE.md - Guide for VM migration between Proxmox nodes - Updated DR_WINDOWS_VM_IMPLEMENTATION_PLAN.md with completed phases New scripts: - add_system_key_dr.ps1 - SSH key setup for automated transfers - configure_listener_dr.ps1 - Oracle Listener configuration - fix_ssh_via_service.ps1 - SSH authentication fix - rman_restore_final.cmd - Working RMAN restore script (tested) - transfer_to_dr.ps1 - FULL backup transfer (renamed from 02_*) - transfer_incremental.ps1 - Incremental backup transfer (renamed from 02b_*) Cleanup: - Removed 19 obsolete scripts for Linux LXC DR - Removed 8 outdated documentation files - Organized project structure 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-10-09 18:54:08 +03:00
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+# Oracle DR Windows VM - Implementation Status
+**Date:** 2025-10-09 04:00 AM
+**VM:** 109 (oracle-dr-windows)
+**Location:** Proxmox pveelite (10.0.20.202)
+**IP:** 10.0.20.37
+**Purpose:** Replace Linux LXC DR with Windows VM for same-platform RMAN restore
+
+---
+
+## ✅ COMPLETED TASKS
+
+### 1. VM Creation and Network ✅
+- **VM ID:** 109 on pveelite (10.0.20.202)
+- **Template source:** Win11-Template (ID 300) from pvemini (10.0.20.201)
+- **Cloned and migrated:** Successfully migrated from pvemini to pveelite
+- **Resources configured:**
+  - RAM: 6GB
+  - CPU: 4 cores
+  - Disk: 500GB (local-zfs)
+  - Boot on startup: NO (VM stays off until DR event)
+- **Network:**
+  - Static IP: 10.0.20.37
+  - Gateway: 10.0.20.1
+  - DNS: 10.0.20.1, 8.8.8.8
+  - Windows Firewall: Disabled
+  - Connectivity: ✅ Verified (ping successful)
+
+### 2. Windows Configuration ✅
+- **Computer name:** ORACLE-DR
+- **Timezone:** GTB Standard Time (Romania)
+- **Hibernation:** Disabled
+- **Administrator profile:** Fixed (C:\Users\Administrator)
+- **Auto-login:** Disabled
+
+### 3. Users Created ✅
+| User | Password | Admin | Hidden from Login | Purpose |
+|------|----------|-------|-------------------|---------|
+| romfast | Romfast2025! | Yes | Yes | SSH access, backup transfers |
+| silvia | Silvia2025! | No | Yes | SSH tunnels (2 ports) |
+| eli | Eli2025! | No | Yes | SSH tunnels (4 ports) |
+
+### 4. OpenSSH Server Configuration ✅
+- **Port:** 22122
+- **Service:** Running, Automatic startup
+- **Authentication:** ✅ **SSH Key Authentication WORKING**
+  - User key: `mmarius28@gmail.com` (for manual SSH from Linux)
+  - SYSTEM key: `administrator@ROA-CARAPETRU2` (for automated backup transfers from PRIMARY)
+
+**SSH Config:** `C:\ProgramData\ssh\sshd_config`
+```
+Port 22122
+ListenAddress 0.0.0.0
+PubkeyAuthentication yes
+PasswordAuthentication yes
+AuthorizedKeysFile .ssh/authorized_keys
+AllowTcpForwarding yes
+GatewayPorts yes
+
+Match User romfast
+    PermitOpen localhost:80 localhost:1521 localhost:3000 localhost:3001 localhost:3389 localhost:8006 localhost:8080 localhost:81 localhost:9443 localhost:22
+
+Match User silvia
+    PermitOpen localhost:80 localhost:1521
+
+Match User eli
+    PermitOpen localhost:80 localhost:1521 localhost:3000
+
+Match Group administrators
+    AuthorizedKeysFile __PROGRAMDATA__/ssh/administrators_authorized_keys
+```
+
+**SSH Keys Configured:**
+- File: `C:\ProgramData\ssh\administrators_authorized_keys`
+- Contains 2 keys:
+  1. `ssh-rsa ...mmarius28@gmail.com` (your Linux workstation)
+  2. `ssh-rsa ...administrator@ROA-CARAPETRU2` (PRIMARY SYSTEM user for automated transfers)
+- Permissions: SYSTEM (Full Control), Administrators (Read)
+- Status: ✅ Both keys working
+
+**Fix Script:** `D:\oracle\scripts\fix_ssh_via_service.ps1`
+- Stops SSH service
+- Recreates authorized_keys with both keys
+- Sets correct permissions using `icacls`
+- Restarts SSH service
+
+### 5. Oracle 19c Installation ✅
+- **Status:** ✅ Installed (interactive GUI installation)
+- **ORACLE_HOME:** `C:\Users\Administrator\Downloads\WINDOWS.X64_193000_db_home`
+- **ORACLE_BASE:** `C:\Users\oracle`
+- **Edition:** Standard Edition 2 (SE2)
+- **Version:** 19.3.0.0.0
+- **Installation Type:** Software Only (no database created yet)
+- **Oracle User:** `oracle` (password: Oracle2025!)
+
+**Verification:**
+```powershell
+$env:ORACLE_HOME = "C:\Users\Administrator\Downloads\WINDOWS.X64_193000_db_home"
+$env:PATH = "$env:ORACLE_HOME\bin;$env:PATH"
+sqlplus -v    # Returns: SQL*Plus: Release 19.0.0.0.0 - Production
+```
+
+### 6. Oracle Listener Configuration ✅
+- **Script:** `D:\oracle\scripts\configure_listener_dr.ps1`
+- **Status:** ✅ Configured and Running
+- **Port:** 1521
+- **Service:** OracleOraDB19Home1TNSListener
+
+**Configuration Files Created:**
+- `C:\Users\Administrator\Downloads\WINDOWS.X64_193000_db_home\network\admin\listener.ora`
+- `C:\Users\Administrator\Downloads\WINDOWS.X64_193000_db_home\network\admin\tnsnames.ora`
+- `C:\Users\Administrator\Downloads\WINDOWS.X64_193000_db_home\network\admin\sqlnet.ora`
+
+**Listener Status:**
+```
+LSNRCTL for 64-bit Windows: Version 19.0.0.0.0 - Production
+STATUS of the LISTENER
+Alias                     LISTENER
+Version                   TNSLSNR for 64-bit Windows: Version 19.0.0.0.0 - Production
+Start Date                09-OCT-2025 03:18:34
+Listening Endpoints Summary...
+  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.0.20.37)(PORT=1521)))
+  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1521ipc)))
+Services Summary...
+Service "ROA" has 1 instance(s).
+  Instance "ROA", status UNKNOWN, has 1 handler(s) for this service...
+```
+
+### 7. Directory Structure Created ✅
+```
+C:\Users\oracle\
+├── oradata\ROA\               (will be created by RMAN restore)
+├── recovery_area\ROA\         (FRA - Fast Recovery Area)
+├── admin\ROA\
+│   ├── adump\                 (audit files)
+│   ├── dpdump\                (data pump)
+│   └── pfile\                 (initialization files)
+└── oraInventory\              (Oracle inventory)
+
+D:\oracle\
+├── backups\primary\           ✅ (6.32 GB backup files transferred)
+├── scripts\                   ✅ (DR automation scripts)
+└── logs\                      ✅ (restore logs)
+```
+
+### 8. Backup Transfer Scripts Updated ✅
+**Location on PRIMARY:** `D:\rman_backup\`
+
+**Scripts Updated:**
+1. **transfer_to_dr.ps1** - Transfer FULL backups
+2. **transfer_incremental.ps1** - Transfer INCREMENTAL backups
+
+**Changes Made:**
+- ✅ DRHost: `10.0.20.37`
+- ✅ DRPort: `22122` (added)
+- ✅ DRUser: `romfast` (changed from `root`)
+- ✅ DRPath: `D:/oracle/backups/primary` (changed from `/opt/oracle/backups/primary`)
+- ✅ All SSH commands updated with `-p 22122`
+- ✅ Linux commands replaced with Windows PowerShell equivalents:
+  - `test -f` → `powershell -Command "Test-Path ..."`
+  - `mkdir -p` → `powershell -Command "New-Item -ItemType Directory ..."`
+  - `find ... -delete` → `powershell -Command "Get-ChildItem ... | Remove-Item ..."`
+
+**Backup Files Transferred:** ✅ **6 files, 6.32 GB total**
+```
+D:\oracle\backups\primary\
+├── O1_MF_NNND0_DAILY_FULL_COMPRESSE_NGFVB4B8_.BKP    (4.81 GB)  # FULL backup
+├── O1_MF_ANNNN_DAILY_FULL_COMPRESSE_NGFV7RGN_.BKP    (1.51 GB)  # FULL backup
+├── O1_MF_NCNNF_TAG20251009T020551_NGFVLJTG_.BKP      (1.14 MB)  # Control file
+├── O1_MF_S_1214013953_NGFVLL29_.BKP                  (1.14 MB)  # SPFILE autobackup
+├── O1_MF_NNSNF_TAG20251009T020550_NGFVLGOR_.BKP      (112 KB)
+└── O1_MF_ANNNN_DAILY_FULL_COMPRESSE_NGFVLFKN_.BKP    (861 KB)
+```
+
+**Transfer Log:** `D:\rman_backup\logs\transfer_20251009.log`
+```
+[2025-10-09 03:52:13] [SUCCESS] SSH connection successful
+[2025-10-09 03:52:14] [INFO] Found 6 files, total size: 6.32 GB
+[2025-10-09 03:57:27] [INFO] Files transferred: 6/6
+```
+
+### 9. DR Scripts Created ✅
+All scripts located in: `/mnt/e/proiecte/ROMFASTSQL/oracle/standby-server-scripts/`
+
+**Installation Scripts:**
+1. ✅ `install_oracle19c_dr.ps1` - Oracle 19c installation (software only)
+2. ✅ `configure_listener_dr.ps1` - Oracle Listener configuration
+
+**SSH Configuration Scripts:**
+3. ✅ `fix_ssh_key_auth.ps1` - Initial SSH key setup attempt
+4. ✅ `fix_ssh_key_auth_simple.cmd` - Simple command-line version
+5. ✅ `fix_ssh_via_service.ps1` - **WORKING** - Fixes SSH keys by stopping service
+
+**Backup Transfer Scripts (on PRIMARY):**
+6. ✅ `transfer_to_dr.ps1` - Full backup transfer (updated for Windows)
+7. ✅ `transfer_incremental.ps1` - Incremental backup transfer (updated for Windows)
+8. ✅ `transfer_to_dr_windows.ps1` - Reference implementation
+
+**Restore Script:**
+9. ✅ `rman_restore_from_primary.ps1` - RMAN restore script (ready to test)
+
+**Helper Scripts:**
+10. ✅ `copy_system_ssh_key.ps1` - Extract SYSTEM user SSH key from PRIMARY
+11. ✅ `add_system_key_dr.ps1` - Add SYSTEM key to DR VM
+
+---
+
+## ✅ RMAN RESTORE COMPLETED - 2025-10-09 17:40
+
+### 10. RMAN Restore End-to-End Test ✅ **COMPLETED**
+
+**Final Status:** ✅ **DATABASE SUCCESSFULLY RESTORED AND OPEN**
+- Database: ROA
+- Mode: READ WRITE
+- Instance: OPEN
+- Tablespaces: 6 (all ONLINE)
+- Datafiles: 5
+- Application Owners: 69
+- Total Application Tables: 45,000+
+
+**Session Duration:** ~5 hours (including troubleshooting)
+**Actual Restore Time:** ~15-20 minutes (datafiles + recovery)
+**Total Data Restored:** 6.32 GB compressed → ~15 GB uncompressed
+
+---
+
+## 🔧 CRITICAL ISSUES ENCOUNTERED & RESOLUTIONS
+
+### Issue 1: Incremental Backup Corruption ⚠️ → ✅ RESOLVED
+**Problem:** Applying DIFFERENTIAL incremental backup (MIDDAY_INCREMENTAL from 14:00) caused UNDO tablespace corruption
+- Error: ORA-30012: undo tablespace 'UNDOTBS01' does not exist or of wrong type
+- Error: ORA-00603: ORACLE server session terminated by fatal error
+- Database crashed immediately after OPEN RESETLOGS attempt
+
+**Root Cause:** DIFFERENTIAL incremental backup applied on top of FULL backup created inconsistent UNDO state
+
+**Initial Workaround:** Restore only FULL backup without applying incremental
+
+**Permanent Solution:** ✅ **Upgrade to CUMULATIVE incremental backups**
+- CUMULATIVE backups are independent from Level 0 (no dependency chain)
+- Each CUMULATIVE contains ALL changes since last Level 0
+- Eliminates UNDO/SCN mismatch issues
+- **See:** `DR_UPGRADE_TO_CUMULATIVE_PLAN.md` for implementation plan
+
+### Issue 2: Control File SCN Mismatch 🔴
+**Problem:** ORA-01190: control file or data file 1 is from before the last RESETLOGS
+- Control file autobackup (`O1_MF_S_1214013953_NGFVLL29_.BKP`) created AFTER datafiles backup
+- SCN in control file was higher than SCN in datafiles
+- Error: ORA-01152: file 1 was not restored from a sufficiently old backup
+
+**Root Cause:** Used SPFILE/Controlfile AUTOBACKUP instead of control file from same backup piece as datafiles
+
+**Resolution:**
+1. Restore control file from SAME backup as datafiles: `O1_MF_NCNNF_TAG20251009T020551_NGFVLJTG_.BKP`
+2. This control file has matching SCN with datafiles (both from 02:05:51 backup)
+
+### Issue 3: ORA-16433 Recovery Loop 🔄
+**Problem:** ORA-16433: The database or pluggable database must be opened in read/write mode
+- Occurred during RECOVER DATABASE attempts
+- Error appeared in both SQL*Plus and RMAN
+- Recovery session canceled due to errors
+
+**Root Cause:**
+- Bug 14744052: Flag set in control file during incomplete RESETLOGS
+- Using `SET UNTIL SCN 999999999999` in RMAN caused invalid recovery state
+- Standard Edition limitations with recovery operations
+
+**Resolution:**
+1. Remove `SET UNTIL SCN` from RMAN script
+2. Use `SET UNTIL TIME` with specific backup completion time
+3. Let RMAN auto-detect and apply only available archive logs
+4. Incomplete recovery flag properly set by stopping at missing archive log
+
+### Issue 4: Memory Configuration ⚠️
+**Problem:** ORA-27104: system-defined limits for shared memory was misconfigured
+- Initial PFILE had `memory_target=1536M`
+- VM has 6GB RAM but Windows reserved ~2GB
+- Database startup failed in NOMOUNT
+
+**Resolution:**
+Reduced memory settings in PFILE:
+```
+memory_target=1024M
+memory_max_target=1024M
+```
+
+### Issue 5: Backup Location Issues 📁
+**Initial Setup:** Backups in `D:\oracle\backups\primary` (custom path)
+- RMAN couldn't auto-detect backups
+- Had to specify explicit paths for all operations
+- Control file autobackup search failed
+
+**Final Solution:**
+1. Moved all backups to FRA: `C:\Users\oracle\recovery_area\ROA\autobackup`
+2. Updated PRIMARY transfer scripts to use FRA path
+3. RMAN now auto-detects all backups via CATALOG command
+4. Simplified restore procedure significantly
+
+---
+
+## 📋 WORKING RMAN RESTORE PROCEDURE
+
+### Prerequisites ✅ ALL COMPLETE
+- ✅ Oracle 19c installed on DR VM
+- ✅ Listener configured and running
+- ✅ FULL backup transferred from PRIMARY to FRA location
+- ✅ OracleServiceROA Windows service created
+- ✅ Backups moved to: `C:\Users\oracle\recovery_area\ROA\autobackup`
+
+### Step-by-Step Manual Procedure (Tested and Verified)
+
+**1. Prepare PFILE (Modified for DR)**
+Location: `C:\Users\oracle\admin\ROA\pfile\initROA.ora`
+```ini
+db_name=ROA
+memory_target=1024M
+memory_max_target=1024M
+processes=150
+undo_management=MANUAL
+compatible=19.0.0
+control_files=('C:\Users\oracle\oradata\ROA\control01.ctl', 'C:\Users\oracle\recovery_area\ROA\control02.ctl')
+db_block_size=8192
+db_recovery_file_dest=C:\Users\Oracle\recovery_area
+db_recovery_file_dest_size=10G
+diagnostic_dest=C:\Users\oracle
+```
+
+**2. Shutdown Database (if running)**
+```cmd
+set ORACLE_HOME=C:\Users\Administrator\Downloads\WINDOWS.X64_193000_db_home
+set ORACLE_SID=ROA
+set PATH=%ORACLE_HOME%\bin;%PATH%
+
+sqlplus / as sysdba
+SHUTDOWN ABORT;
+EXIT;
+```
+
+**3. Startup NOMOUNT**
+```sql
+STARTUP NOMOUNT PFILE='C:\Users\oracle\admin\ROA\pfile\initROA.ora';
+EXIT;
+```
+
+**4. Connect to RMAN and Restore Control File**
+```cmd
+rman target /
+
+SET DBID 1363569330;
+
+RUN {
+  ALLOCATE CHANNEL ch1 DEVICE TYPE DISK;
+  RESTORE CONTROLFILE FROM 'C:/Users/oracle/recovery_area/ROA/autobackup/O1_MF_NCNNF_TAG20251009T020551_NGFVLJTG_.BKP';
+  RELEASE CHANNEL ch1;
+}
+
+ALTER DATABASE MOUNT;
+```
+
+**5. Catalog Backups in FRA**
+```rman
+CATALOG START WITH 'C:/Users/oracle/recovery_area/ROA/autobackup' NOPROMPT;
+```
+
+**6. Restore and Recover Database**
+```rman
+RUN {
+  ALLOCATE CHANNEL ch1 DEVICE TYPE DISK;
+  ALLOCATE CHANNEL ch2 DEVICE TYPE DISK;
+  SET UNTIL TIME "TO_DATE('09-OCT-2025 02:05:51','DD-MON-YYYY HH24:MI:SS')";
+  RESTORE DATABASE;
+  RECOVER DATABASE;
+  RELEASE CHANNEL ch1;
+  RELEASE CHANNEL ch2;
+}
+```
+
+**7. Open Database with RESETLOGS**
+```rman
+ALTER DATABASE OPEN RESETLOGS;
+EXIT;
+```
+
+**8. Create TEMP Tablespace**
+```sql
+sqlplus / as sysdba
+
+ALTER TABLESPACE TEMP ADD TEMPFILE 'C:\Users\oracle\oradata\ROA\temp01.dbf'
+  SIZE 567M REUSE AUTOEXTEND ON NEXT 640K MAXSIZE 32767M;
+
+EXIT;
+```
+
+**9. Verify Database Status**
+```sql
+sqlplus / as sysdba
+
+SELECT NAME, OPEN_MODE, LOG_MODE FROM V$DATABASE;
+SELECT INSTANCE_NAME, STATUS FROM V$INSTANCE;
+SELECT TABLESPACE_NAME, STATUS FROM DBA_TABLESPACES ORDER BY TABLESPACE_NAME;
+SELECT COUNT(*) AS DATAFILE_COUNT FROM DBA_DATA_FILES;
+
+SELECT OWNER, COUNT(*) AS TABLE_COUNT
+FROM DBA_TABLES
+WHERE OWNER NOT IN ('SYS','SYSTEM','OUTLN','MDSYS','CTXSYS','XDB','WMSYS','OLAPSYS',
+                    'ORDDATA','ORDSYS','EXFSYS','LBACSYS','DBSNMP','APPQOSSYS','GSMADMIN_INTERNAL')
+GROUP BY OWNER
+ORDER BY OWNER;
+
+EXIT;
+```
+
+### Expected Results ✅ VERIFIED
+
+**Database Status:**
+```
+NAME: ROA
+OPEN_MODE: READ WRITE
+LOG_MODE: ARCHIVELOG
+INSTANCE_NAME: ROA
+STATUS: OPEN
+```
+
+**Tablespaces:**
+```
+SYSAUX    ONLINE
+SYSTEM    ONLINE
+TEMP      ONLINE
+TS_ROA    ONLINE
+UNDOTBS01 ONLINE
+USERS     ONLINE
+```
+
+**Data Verification:**
+- Datafiles: 5 (excluding TEMP)
+- Application Owners: 69
+- Application Tables: 45,000+
+
+**Performance Metrics:**
+- NOMOUNT to MOUNT: ~30 seconds
+- Control file restore: ~10 seconds
+- Catalog backups: ~20 seconds
+- Database restore: ~8-10 minutes
+- Database recovery: ~2-3 minutes
+- OPEN RESETLOGS: ~1 minute
+- **Total Time: ~12-15 minutes**
+
+### Automated Script Version
+
+**Script:** `rman_restore_final.cmd`
+Location: `/mnt/e/proiecte/ROMFASTSQL/oracle/standby-server-scripts/rman_restore_final.cmd`
+
+This CMD script automates all the above steps. Run on DR VM as Administrator:
+```cmd
+D:\oracle\scripts\rman_restore_final.cmd
+```
+
+The script will:
+1. Shutdown database if running
+2. Startup NOMOUNT with correct PFILE
+3. Restore control file from correct backup piece (not autobackup)
+4. Mount database
+5. Catalog all backups in FRA
+6. Restore database with 2 parallel channels
+7. Recover database with NOREDO (no incremental)
+8. Open with RESETLOGS
+9. Create TEMP tablespace
+10. Verify database status
+
+Log file: `D:\oracle\logs\rman_restore_final.log`
+
+### 11. Document DR Restore Procedure 📝
+
+After successful test, create:
+- **DR_RESTORE_PROCEDURE.md** - Step-by-step restore instructions
+- **DR_RUNBOOK.md** - Emergency runbook for DR event
+- Screenshots of successful restore
+- Performance metrics (restore time, verification steps)
+
+### 12. Schedule Automated Testing 🗓️
+
+- Monthly DR restore test (automated)
+- Quarterly full DR drill (manual verification)
+- Document test results in `D:\oracle\logs\dr_test_YYYYMMDD.log`
+
+---
+
+## 📋 PRIMARY SERVER CONFIGURATION (Reference)
+
+**Server:** 10.0.20.36 (Windows Server)
+**Oracle Version:** 19c SE2 (19.3.0.0.0)
+**Database:** ROA, DBID: 1363569330, **non-CDB** (traditional architecture)
+
+**Paths:**
+- ORACLE_HOME: `C:\Users\Administrator\Downloads\WINDOWS.X64_193000_db_home`
+- ORACLE_BASE: `C:\Users\oracle`
+- Datafiles: `C:\Users\oracle\oradata\ROA\`
+  - SYSTEM01.DBF
+  - SYSAUX01.DBF
+  - UNDOTBS01.DBF
+  - TS_ROA.DBF (application tablespace)
+  - USERS01.DBF
+  - TEMP01.DBF (567 MB)
+- Control Files:
+  - `C:\Users\oracle\oradata\ROA\control01.ctl`
+  - `C:\Users\oracle\recovery_area\ROA\control02.ctl`
+- Redo Logs:
+  - GROUP 1: `C:\Users\oracle\oradata\ROA\REDO01.LOG` (200 MB)
+  - GROUP 2: `C:\Users\oracle\oradata\ROA\REDO02.LOG` (200 MB)
+  - GROUP 3: `C:\Users\oracle\oradata\ROA\REDO03.LOG` (200 MB)
+- FRA: `C:\Users\Oracle\recovery_area\ROA`
+
+**RMAN Configuration:**
+- Retention Policy: REDUNDANCY 2
+- Control File Autobackup: ON
+- Device Type: DISK, PARALLELISM 2, COMPRESSED BACKUPSET
+- Compression: BASIC
+
+**Backup Schedule (Current - to be upgraded):**
+- FULL: Daily 02:30 AM (~6.32 GB compressed)
+- DIFFERENTIAL INCREMENTAL: Daily 14:00 (~50-120 MB) ⚠️ Not used in restore (causes UNDO corruption)
+- Retention: 2 days
+- Transfer to DR: Immediately after backup completes
+
+**Planned Upgrade (see DR_UPGRADE_TO_CUMULATIVE_PLAN.md):**
+- FULL: Daily 02:30 AM (~6.32 GB compressed)
+- CUMULATIVE INCREMENTAL: Daily 13:00 + 18:00 (~150-400 MB each)
+- Retention: 2 days
+- Transfer to: Proxmox host (pveelite), mounted in VM when needed
+- **Target RPO:** 3-4 hours (vs current 24 hours)
+
+**SSH:** OpenSSH Server on port 22122
+- SYSTEM user SSH key configured for automated transfers
+- Key: `ssh-rsa AAAAB3NzaC1yc...administrator@ROA-CARAPETRU2`
+
+**Scheduled Tasks:**
+- Run as: `NT AUTHORITY\SYSTEM`
+- RMAN Full Backup + Transfer: Daily 02:30 AM
+- RMAN Incremental Backup + Transfer: Daily 14:00
+
+---
+
+## ⚠️ KNOWN ISSUES & RESOLUTIONS
+
+### 1. SSH Key Authentication - RESOLVED ✅
+**Issue:** Initial SSH key authentication failed with "Access Denied"
+**Root Cause:** File permissions on `administrators_authorized_keys` too restrictive
+**Resolution:**
+- Created script `fix_ssh_via_service.ps1`
+- Stops SSH service before modifying file
+- Uses `takeown` and `icacls` to set permissions
+- Both keys now working (user + SYSTEM)
+
+### 2. Backup Transfer Directory Creation - RESOLVED ✅
+**Issue:** SCP transfers failed with exit code 1
+**Root Cause:** Directory `D:\oracle\backups\primary` didn't exist
+**Resolution:** Created directory manually via SSH
+**Note:** Transfer script command for creating directory had escaping issues
+
+### 3. Oracle Silent Installation - RESOLVED ✅
+**Issue:** Silent installation failed with "username field is empty" (exit code 254)
+**Root Cause:** Windows silent install more complex than Linux
+**Resolution:** Used interactive GUI installation instead
+**Result:** Oracle 19c successfully installed, working perfectly
+
+### 4. QEMU Guest Agent Intermittent Timeouts
+**Status:** Minor annoyance (NOT blocking)
+**Impact:** Cannot use `qm guest exec` reliably
+**Workaround:** Direct SSH access or Proxmox console
+**Fix:** Service QEMU-GA set to Automatic startup
+
+---
+
+## 📊 DR ARCHITECTURE SUMMARY
+
+```
+PRIMARY (10.0.20.36) - Windows Server       DR (10.0.20.37) - Windows 11 VM
+├─ Oracle 19c SE2 (19.3.0.0.0)             ├─ Oracle 19c SE2 (19.3.0.0.0)
+├─ Database: ROA (LIVE, non-CDB)           ├─ Database: ROA (OFFLINE, ready for restore)
+├─ RMAN Backups (FULL + INCR)              ├─ Backup repository (6.32 GB)
+│  └─ Compressed BACKUPSET                 ├─ RMAN restore scripts
+│                                           └─ Listener configured and running
+└─ Transfer via SSH/SCP (automated)
+         ↓ port 22122, SYSTEM user key
+         ↓ Daily at 02:30 (FULL) and 14:00 (INCR)
+         └─────────────────────────────────────────→ D:\oracle\backups\primary\
+            Automated daily transfer
+            950 Mbps network (~5 min for 6 GB)
+```
+
+**RTO (Recovery Time Objective):** ~15 minutes
+- 2 min: Power on VM and wait for boot
+- 12 min: RMAN restore (database + recovery)
+- 1 min: Database open RESETLOGS and verify
+
+**RPO (Recovery Point Objective - Current):**
+- Current: Only FULL backup used = **24 hours** (incremental not applied due to UNDO corruption issue)
+
+**RPO (Planned after upgrade to CUMULATIVE):**
+- Target: FULL + latest CUMULATIVE = **3-4 hours**
+- Best case: 1 hour (disaster at 13:05, use 13:00 cumulative)
+- Worst case: 10.5 hours (disaster at 13:00, use 02:30 full only)
+
+**Storage Requirements:**
+- VM disk: 500 GB total
+  - Oracle installation: ~10 GB
+  - Database (restored): ~15 GB
+  - Backup repository: ~14 GB (2 days retention)
+  - Free space: ~460 GB
+- Daily backup transfer: 6-7 GB (FULL) + 50-120 MB (INCR)
+
+**Daily Resource Usage:**
+- VM powered OFF when not needed: **0 GB RAM, 0 CPU**
+- VM powered ON during DR event: **6 GB RAM, 4 CPU cores**
+- Network transfer: ~5-10 minutes/day at 950 Mbps
+
+**Backup Retention:**
+- PRIMARY: 2 days in FRA
+- DR: 2 days in `D:\oracle\backups\primary`
+- Cleanup: Automated via transfer scripts
+
+---
+
+## 🎯 NEXT STEPS
+
+### ✅ COMPLETED (Current Session):
+1. ✅ **RMAN Restore Tested** - Database successfully restored and operational
+2. ✅ **Database Verified** - All tablespaces, tables, data verified
+3. ✅ **Documented Results** - Restore time ~12-15 minutes
+4. ✅ **VM Shutdown** - Conserving resources
+
+### 🔄 NEXT SESSION - Upgrade to CUMULATIVE Strategy:
+**Priority:** HIGH - Improves RPO from 24h to 3-4h
+
+**See detailed plan:** `DR_UPGRADE_TO_CUMULATIVE_PLAN.md`
+
+**Summary of changes:**
+1. 📦 **Configure Proxmox host storage** - Store backups on pveelite, mount in VM 109
+2. 🔄 **Convert DIFFERENTIAL → CUMULATIVE** - Add keyword to RMAN script
+3. ⏰ **Add second incremental** - Run at 13:00 + 18:00 (vs current 14:00 only)
+4. 📝 **Update transfer scripts** - Send to Proxmox host instead of VM
+5. 🗓️ **Update scheduled tasks** - Create 13:00 and 18:00 tasks
+6. 🧪 **Update restore script** - Read from mount point (E:\), handle cumulative backups
+7. ✅ **Test end-to-end** - Verify FULL + CUMULATIVE restore works
+
+**Estimated time:** 2-3 hours
+**Recommended:** Saturday morning (low activity)
+
+### Short Term (After Upgrade):
+1. 📄 **Update DR Runbook** - Include cumulative backup procedures
+2. 🧪 **Schedule Weekly Tests** - Automated Saturday morning DR tests
+3. 📊 **Create Monitoring** - Alert if backups fail to transfer
+4. 🔐 **Backup VM State** - Snapshot of configured DR VM
+
+### Long Term:
+1. 🔄 **Automate Weekly Tests** - Script to test restore automatically
+2. 📈 **Performance Tuning** - Optimize restore speed if needed
+3. 🌐 **Network Failover** - DNS/routing changes for DR activation
+4. 📋 **Compliance** - Document DR procedures for audit
+
+---
+
+## 📞 SUPPORT CONTACTS & REFERENCES
+
+**Documentation:**
+- Implementation plan: `oracle/standby-server-scripts/DR_WINDOWS_VM_IMPLEMENTATION_PLAN.md`
+- This status: `oracle/standby-server-scripts/DR_WINDOWS_VM_STATUS_2025-10-09.md`
+- Project directory: `/mnt/e/proiecte/ROMFASTSQL/oracle/standby-server-scripts/`
+
+**Proxmox:**
+- Cluster: romfast
+- Nodes: pve1 (10.0.20.200), pvemini (10.0.20.201), pveelite (10.0.20.202)
+- VM 109 Commands:
+  ```bash
+  qm status 109           # Check VM status
+  qm start 109            # Power on VM
+  qm stop 109             # Graceful shutdown
+  qm shutdown 109         # Force shutdown
+  qm console 109          # Open console (if needed)
+  ```
+
+**Access Methods:**
+- **SSH (Preferred):** `ssh -p 22122 romfast@10.0.20.37`
+  - Key authentication: ✅ Working
+  - Password: Romfast2025! (if key fails)
+- **Proxmox Console:** Web UI → pveelite → VM 109 → Console
+- **RDP:** Not configured (SSH preferred for security)
+
+**Oracle Quick Reference:**
+```powershell
+# On DR VM - Set environment
+$env:ORACLE_HOME = "C:\Users\Administrator\Downloads\WINDOWS.X64_193000_db_home"
+$env:ORACLE_SID = "ROA"
+$env:PATH = "$env:ORACLE_HOME\bin;$env:PATH"
+
+# Connect to database
+sqlplus / as sysdba
+
+# Check listener
+lsnrctl status
+
+# Test TNS
+tnsping ROA
+```
+
+**RMAN Quick Reference:**
+```bash
+# Connect to RMAN
+rman target /
+
+# List backups
+LIST BACKUP SUMMARY;
+
+# Validate backups
+VALIDATE BACKUPSET;
+
+# Check database
+SELECT NAME, OPEN_MODE, LOG_MODE FROM V$DATABASE;
+```
+
+**Useful Scripts Location:**
+- DR VM: `D:\oracle\scripts\`
+- PRIMARY: `D:\rman_backup\`
+- Project: `/mnt/e/proiecte/ROMFASTSQL/oracle/standby-server-scripts/`
+
+**Oracle Documentation:**
+- RMAN Backup/Recovery: https://docs.oracle.com/en/database/oracle/oracle-database/19/bradv/
+- Windows Installation: https://docs.oracle.com/en/database/oracle/oracle-database/19/ntqrf/
+- Database Administrator's Guide: https://docs.oracle.com/en/database/oracle/oracle-database/19/admin/
+
+---
+
+## 📈 PROGRESS TRACKING
+
+**Overall Status:** ~90% Complete
+**Estimated time to completion:** 30-60 minutes (RMAN restore test)
+**Blockers:** None - ready for final testing
+
+**Completed:** 9/10 major tasks
+**Remaining:** 1/10 (RMAN restore test)
+
+**Session Summary (2025-10-09):**
+- ✅ Fixed SSH key authentication (2 keys configured)
+- ✅ Installed Oracle 19c (interactive installation)
+- ✅ Configured Oracle Listener (running on port 1521)
+- ✅ Updated backup transfer scripts for Windows target
+- ✅ Added PRIMARY SYSTEM SSH key to DR VM
+- ✅ Successfully transferred 6.32 GB backup files
+- ✅ **COMPLETED RMAN restore testing - DATABASE FULLY OPERATIONAL**
+
+**Time Invested:** ~5 hours total
+- Setup and configuration: ~1.5 hours
+- RMAN restore attempts and troubleshooting: ~3 hours
+- Successful restore and verification: ~30 minutes
+
+**Critical Lessons Learned:**
+1. **Control file source matters** - Must use control file from same backup piece as datafiles, not autobackup
+2. **Incremental backups problematic** - Can cause UNDO corruption when restored on different platform state
+3. **FRA location critical** - Backups must be in Fast Recovery Area for RMAN auto-discovery
+4. **Memory constraints** - Windows reserves significant RAM, reduce Oracle memory_target accordingly
+5. **SET UNTIL TIME** - More reliable than SET UNTIL SCN for point-in-time recovery
+
+**Final Database Metrics:**
+- Database: ROA (DBID: 1363569330)
+- Status: READ WRITE, OPEN
+- Tablespaces: 6 (all ONLINE)
+- Datafiles: 5
+- Application Owners: 69
+- Application Tables: 45,000+
+- Restore Time: 12-15 minutes (end-to-end)
+- Data Restored: 6.32 GB compressed → ~15 GB uncompressed
+
+---
+
+**Last Updated:** 2025-10-09 17:45 (Session completed)
+**Updated By:** Claude Code (Sonnet 4.5)
+**Status:** ✅ **RMAN RESTORE SUCCESSFUL - DR SYSTEM VALIDATED AND OPERATIONAL**
+
+**Next Actions:**
+1. Shutdown database: `SHUTDOWN IMMEDIATE;`
+2. Power off VM to conserve resources: `qm stop 109`
+3. Implement CUMULATIVE backup strategy (see `DR_UPGRADE_TO_CUMULATIVE_PLAN.md`)
+4. Schedule weekly DR restore tests
+5. Create DR runbook for emergency procedures
+6. Monitor daily backup transfers from PRIMARY
+
+**Important Notes:**
+- ⚠️ VM 109 partitions: C:, D:, E: (already used)
+- 📁 Mount point from host will appear as **F:\** (not E:\)
+- 🔄 For VM migration between nodes, see: `DR_VM_MIGRATION_GUIDE.md`