calypso/docs/PHASE-C-STATUS.md

Phase C: Backend Core Domains - Status Report

✅ Completed Components

1. Database Schema ✅

• Migration 002: Complete schema for storage, SCST, and tape components
• All tables created and indexed properly

2. Storage Component ✅

• Disk Discovery: Physical disk detection via lsblk and udevadm
• LVM Management: Volume group listing, repository creation/management
• Capacity Monitoring: Repository usage tracking
• API Endpoints: Full CRUD for repositories
• Bug Fixes: JSON parsing for lsblk output (handles both string and number)

3. SCST Integration ✅

• Target Management: Create, list, and manage iSCSI targets
• LUN Mapping: Add devices to targets with proper LUN numbering
• Initiator ACL: Add initiators with single-initiator enforcement
• Handler Detection: List available SCST handlers
• Configuration: Apply SCST configuration (async task)
• Verified: All handlers detected correctly (dev_cdrom, dev_disk, vdisk_fileio, etc.)

4. System Management ✅

• Service Status: Get systemd service status
• Service Control: Restart services
• Log Viewing: Retrieve journald logs
• Support Bundles: Generate diagnostic bundles (async)

5. Authentication & Authorization ✅

• JWT Authentication: Working correctly
• RBAC: Role-based access control
• Permission Checking: Fixed lazy-loading of permissions
• Audit Logging: All mutating operations logged

6. Task Engine ✅

• State Machine: pending → running → completed/failed
• Progress Tracking: 0-100% progress reporting
• Persistence: All tasks stored in database

📊 Test Results

All 11 API Tests Passing:

• ✅ Test 1: Health Check (200 OK)
• ✅ Test 2: User Login (200 OK)
• ✅ Test 3: Get Current User (200 OK)
• ✅ Test 4: List Physical Disks (200 OK) - Fixed JSON parsing
• ✅ Test 5: List Volume Groups (200 OK)
• ✅ Test 6: List Repositories (200 OK)
• ✅ Test 7: List SCST Handlers (200 OK) - SCST installed and working
• ✅ Test 8: List SCST Targets (200 OK)
• ✅ Test 9: List System Services (200 OK)
• ✅ Test 10: Get Service Status (200 OK)
• ✅ Test 11: List Users (200 OK)

🔄 Remaining Components (Phase C)

1. Physical Tape Bridge (Pending)

Requirements (SRS-02):

• Tape library discovery (changer + drives)
• Slot inventory and barcode handling
• Load/unload operations
• iSCSI export via SCST
• Single initiator enforcement

Status: Database schema ready, implementation pending

2. Virtual Tape Library (Pending)

Requirements (SRS-02):

• MHVTL integration
• Virtual tape management
• Tape image storage
• iSCSI export via SCST
• Barcode emulation

Status: Database schema ready, implementation pending

3. Enhanced Monitoring (Pending)

Requirements (SRS-05):

• Alerting engine
• Metrics collection
• Enhanced health checks
• Event streaming (WebSocket)

Status: Basic health check exists, alerting engine pending

🐛 Bugs Fixed

1. Permission Checking Bug: Fixed lazy-loading of user permissions in middleware
2. Disk Parsing Bug: Fixed JSON parsing to handle both string and number for lsblk size field

📈 Progress Summary

• Phase A: ✅ Complete (Environment & Requirements)
• Phase B: ✅ Complete (Backend Foundation)
• Phase C: 🟡 In Progress
  • Core components: ✅ Complete
  • Tape components: ⏳ Pending
  • Monitoring: ⏳ Pending

🎯 Next Steps

1. Physical Tape Bridge Implementation

   • Implement discovery service
   • Implement inventory operations
   • Implement load/unload operations
   • Wire up API endpoints

2. Virtual Tape Library Implementation

   • MHVTL integration service
   • Virtual tape management
   • Tape image handling
   • Wire up API endpoints

3. Enhanced Monitoring

   • Alerting engine
   • Metrics collection
   • WebSocket event streaming

📝 Notes

• SCST is fully installed and operational
• All core storage and iSCSI functionality is working
• Database schema supports all planned features
• API foundation is solid and tested
• Ready to proceed with tape components

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Last Updated: Phase C - Core Components Complete, SCST Verified Next Milestone: Physical Tape Bridge or Virtual Tape Library Implementation