# Phase 3 Migration: Network Devices to machines Table

**Created:** 2025-11-10
**Status:** Ready for Testing
**Follows:** Phase 2 (PC Migration - Completed Successfully)

---

## 📋 Overview

This migration consolidates all network infrastructure devices (servers, switches, cameras, access points, IDFs) into the unified `machines` table, completing the infrastructure unification started with Phase 2.

### What Gets Migrated:
- ✅ **Servers** → machines (machinetypeid 30)
- ✅ **Switches** → machines (machinetypeid 31)
- ✅ **Cameras** → machines (machinetypeid 32)
- ✅ **Access Points** → machines (machinetypeid 33) *if table exists*
- ✅ **IDFs** → machines (machinetypeid 34) *if table exists*

### What Stays Separate:
- ❌ **Printers** → Remain in printers table (by design)

---

## 📁 Migration Scripts

```
01_create_network_machinetypes.sql          Creates machinetypes 30-36
02_migrate_servers_to_machines.sql          Migrates servers table
03_migrate_switches_to_machines.sql         Migrates switches table
04_migrate_cameras_to_machines.sql          Migrates cameras table
07_migrate_network_communications.sql       Migrates IP addresses
08_create_network_relationship_types.sql    Creates new relationship types
09_update_views_for_network_devices.sql     Creates/updates views

VERIFY_PHASE3_MIGRATION.sql                 Comprehensive verification
RUN_ALL_PHASE3_SCRIPTS.sql                  Executes all scripts in order
ROLLBACK_PHASE3.sql                         Emergency rollback
```

---

## ⚡ Quick Start

### Prerequisites:
```bash
# 1. Backup database
mysqldump -u root -p shopdb > shopdb_backup_$(date +%Y%m%d).sql

# 2. Verify Phase 2 is stable
mysql -u root -p shopdb < ../VERIFY_PHASE2.sql  # if available

# 3. Check current state
mysql -u root -p shopdb -e "SELECT COUNT(*) FROM servers; SELECT COUNT(*) FROM switches; SELECT COUNT(*) FROM cameras;"
```

### Test on Backup First:
```bash
# 1. Create test database
mysql -u root -p -e "CREATE DATABASE shopdb_test;"
mysql -u root -p shopdb_test < shopdb_backup_YYYYMMDD.sql

# 2. Run migration on test
mysql -u root -p shopdb_test < RUN_ALL_PHASE3_SCRIPTS.sql

# 3. Review results
mysql -u root -p shopdb_test < VERIFY_PHASE3_MIGRATION.sql
```

### Production Migration:
```bash
# Only after successful test!
mysql -u root -p shopdb < RUN_ALL_PHASE3_SCRIPTS.sql
```

---

## 📊 Expected Results

### Before Migration:
```
servers:   50 records
switches:  20 records
cameras:   30 records
Total:     100 devices
```

### After Migration:
```
machines (machinetypeid 30): 50 servers
machines (machinetypeid 31): 20 switches
machines (machinetypeid 32): 30 cameras
Total:                       100 devices

communications:  100+ IP addresses
relationshiptypes: +5 new types
views: 3 new views created
```

---

## ✅ Verification Checklist

Run `VERIFY_PHASE3_MIGRATION.sql` and check for:

- [ ] All record counts match (old vs new tables)
- [ ] All 7 machinetypes created (30-36)
- [ ] No NULL required fields
- [ ] All IP addresses migrated
- [ ] 5 new relationship types created
- [ ] 3 views created successfully
- [ ] No duplicate serial numbers
- [ ] No duplicate machinenumbers
- [ ] Old tables preserved (rollback safety)
- [ ] All tests show "PASS"

---

## 🔄 Relationship Examples

### Camera → Switch → IDF
```sql
-- Camera connected to switch
INSERT INTO machinerelationships (machineid, related_machineid, relationshiptypeid)
SELECT
    (SELECT machineid FROM machines WHERE machinenumber = 'CAM-Shop-01'),
    (SELECT machineid FROM machines WHERE machinenumber = 'SW-Core-01'),
    (SELECT relationshiptypeid FROM relationshiptypes WHERE relationshiptype = 'Connected To');

-- Switch connected to IDF
INSERT INTO machinerelationships (machineid, related_machineid, relationshiptypeid)
SELECT
    (SELECT machineid FROM machines WHERE machinenumber = 'SW-Core-01'),
    (SELECT machineid FROM machines WHERE machinenumber = 'IDF-Building-A'),
    (SELECT relationshiptypeid FROM relationshiptypes WHERE relationshiptype = 'Connected To');
```

### Query Network Topology
```sql
-- Show all cameras and their connections
SELECT
    cam.machinenumber AS camera,
    sw.machinenumber AS switch,
    idf.machinenumber AS idf,
    cam_ip.address AS camera_ip
FROM machines cam
-- Camera to Switch
JOIN machinerelationships mr1 ON cam.machineid = mr1.machineid
JOIN relationshiptypes rt1 ON mr1.relationshiptypeid = rt1.relationshiptypeid AND rt1.relationshiptype = 'Connected To'
JOIN machines sw ON mr1.related_machineid = sw.machineid AND sw.machinetypeid = 31
-- Switch to IDF
LEFT JOIN machinerelationships mr2 ON sw.machineid = mr2.machineid
LEFT JOIN relationshiptypes rt2 ON mr2.relationshiptypeid = rt2.relationshiptypeid AND rt2.relationshiptype = 'Connected To'
LEFT JOIN machines idf ON mr2.related_machineid = idf.machineid AND idf.machinetypeid = 34
-- IP address
LEFT JOIN communications cam_ip ON cam.machineid = cam_ip.machineid AND cam_ip.isprimary = 1
WHERE cam.machinetypeid = 32;
```

---

## 🔍 Useful Queries

### All Network Devices
```sql
SELECT * FROM vw_network_devices_summary;
```

### All Infrastructure (Equipment + PCs + Network)
```sql
SELECT * FROM vw_all_infrastructure
WHERE device_category = 'Network Device';
```

### Network Devices on Specific Subnet
```sql
SELECT m.machinenumber, mt.machinetype, c.address
FROM machines m
JOIN machinetypes mt ON m.machinetypeid = mt.machinetypeid
JOIN communications c ON m.machineid = c.machineid
WHERE mt.machinetypeid BETWEEN 30 AND 36
AND c.address LIKE '192.168.1.%';
```

### Network Topology
```sql
SELECT * FROM vw_network_topology
WHERE relationshiptype = 'Connected To';
```

---

## 🚨 Troubleshooting

### Migration Fails:
1. Review error message
2. Check if old tables exist
3. Run VERIFY script to identify issue
4. Run ROLLBACK if needed
5. Fix issue and retry

### Rollback:
```bash
# 1. Open ROLLBACK script
# 2. Uncomment rollback steps
# 3. Run rollback
mysql -u root -p shopdb < ROLLBACK_PHASE3.sql

# 4. Verify rollback
mysql -u root -p shopdb -e "SELECT COUNT(*) FROM machines WHERE machinetypeid BETWEEN 30 AND 36;"
# Should return 0
```

### Emergency Restore:
```bash
# If rollback doesn't work, restore from backup
mysql -u root -p shopdb < shopdb_backup_YYYYMMDD.sql
```

---

## 📝 Post-Migration Tasks

### Immediate (After Successful Migration):
1. ✅ Run verification script
2. ✅ Test application pages
3. ✅ Verify relationships display correctly
4. ✅ Check all device types accessible

### Short-Term (1-7 Days):
1. Update displaymachines.asp (add network device filters)
2. Update machine_edit.asp (if needed)
3. Test adding new network devices
4. Monitor for issues

### Long-Term (30+ Days):
1. Confirm migration stable
2. Drop old tables:
   ```sql
   DROP TABLE servers;
   DROP TABLE switches;
   DROP TABLE cameras;
   ```
3. Update documentation
4. Celebrate! 🎉

---

## 📌 Important Notes

### Data Preserved:
- ✅ All serial numbers
- ✅ All IP addresses
- ✅ All descriptions
- ✅ All map coordinates
- ✅ All models/vendors
- ✅ All active/inactive states

### Data Generated:
- `machinenumber`: Generated as SVR-XXXX, SW-XXXX, CAM-XXXX
- `alias`: Populated from description field
- `pctypeid`: Set to NULL (not PCs)
- `machinetypeid`: Set to 30-36 based on device type

### Not Migrated (Old Tables Don't Have):
- MAC addresses (would be NULL)
- Business units (not applicable)
- Detailed notes (field empty in old tables)

---

## 📞 Support

### Issues?
1. Check VERIFY_PHASE3_MIGRATION.sql results
2. Review error logs
3. Check old tables still exist
4. Run ROLLBACK if needed
5. Contact database administrator

### Questions?
- Review docs/PHASE3_NETWORK_DEVICES_MIGRATION_PLAN.md
- Check SESSION_SUMMARY_2025-11-10.md
- Review Phase 2 migration (similar pattern)

---

## ✨ Benefits After Migration

### Unified Data Model:
- Single query for all infrastructure
- Consistent filtering and searching
- Better reporting capabilities

### Powerful Relationships:
- Camera → Switch → IDF topology
- Network device dependencies
- Better visualization options

### Better Maintenance:
- Less code duplication
- Easier to add new device types
- Consistent UI/UX
- CMDB-style asset management

---

**Ready to migrate? Start with testing on backup database!**

```bash
# Test first!
mysql -u root -p shopdb_test < RUN_ALL_PHASE3_SCRIPTS.sql
```

**Good luck! 🚀**
