proxmox/reports/status/execution_review_summary.md

# Immediate Actions Execution Review

**Date:** 2026-01-20  
**Review of:** Execution results from immediate actions

---

## Executive Summary

### ✅ Successes
1. **CPU Load Reduction:** ml110 CPU usage dropped from **81.5% to 39.2%** (52% reduction!)
2. **7 Containers Successfully Migrated** to r630-01:
   - besu-validator-1, 2, 3 (containers 1000, 1001, 1002)
   - besu-sentry-1, 2, 3 (containers 1500, 1501, 1502)
   - besu-rpc-core-1 (container 2101)
3. **r630-01 Utilization:** CPU usage increased from 8.2% to 12.9% (still very healthy)
4. **All containers running** successfully after migration

### ⚠️ Issues Encountered

#### 1. Storage Incompatibility on r630-02
**Problem:** All 7 migrations to r630-02 failed with error:
```
storage 'local-lvm' is not available on node 'r630-02'
```

**Root Cause:** 
- Containers on ml110 use `local-lvm` storage
- r630-02 has different storage pools: `thin1-r630-02`, `thin2`, `thin3`, `thin4`, `thin5`, `thin6`
- The standard `pct migrate` command doesn't automatically handle storage conversion

**Affected Containers:**
- besu-validator-4, 5 (1003, 1004)
- besu-sentry-4, ali (1503, 1504)
- besu-rpc-public-1 (2201)
- besu-rpc-ali-0x8a (2303)
- besu-rpc-thirdweb-0x8a-1 (2401)

#### 2. thin2 Storage Migration Issue
**Problem:** Container 5000 (blockscout-1) migration failed due to incorrect command syntax:
```
Unknown option: storage
pct migrate <vmid> <target> [OPTIONS]
```

**Root Cause:** The `pct migrate` command doesn't support `--storage` flag directly. Need to use API-based migration.

**Current Status:** 
- Container 5000 still on thin2 (200GB disk, 96% used)
- Container 6200 also on thin2 (50GB disk)
- thin2 is at 88.86% capacity (210.7GB used of 226.13GB)

---

## Current System State

### ml110
- **Before:** 23 containers, 81.5% CPU usage
- **After:** 16 containers, 39.2% CPU usage
- **Improvement:** ✅ 52% CPU reduction
- **Remaining High-CPU Containers:**
  - besu-validator-4 (95.2% CPU) - Failed to migrate
  - besu-validator-5 (60.9% CPU) - Failed to migrate
  - besu-sentry-4 (96.8% CPU) - Failed to migrate
  - besu-sentry-ali (94.1% CPU) - Failed to migrate
  - besu-rpc-public-1 (80.0% CPU) - Failed to migrate
  - besu-rpc-ali-0x8a (93.3% CPU) - Failed to migrate
  - besu-rpc-thirdweb-0x8a-1 (94.1% CPU) - Failed to migrate

### r630-01
- **Before:** 50 containers, 8.2% CPU usage
- **After:** 57 containers, 12.9% CPU usage
- **Status:** ✅ Healthy, well within capacity

### r630-02
- **Before:** 7 containers, 5.3% CPU usage
- **After:** 7 containers, 5.3% CPU usage
- **Status:** ⚠️ Still underutilized - migrations failed

---

## Solutions Required

### 1. Fix r630-02 Migrations (High Priority)

**Solution:** Use API-based migration with storage parameter:

```bash
# Method 1: Use pvesh API
pvesh create /nodes/ml110/lxc/<vmid>/migrate \
  --target r630-02 \
  --storage thin1-r630-02 \
  --online 1

# Method 2: Stop container, migrate, change storage
pct stop <vmid>
pct migrate <vmid> r630-02
# Then manually move storage if needed
```

**Available Storage on r630-02:**
- `thin1-r630-02`: 0.34% used (225.36 GiB available) ✅ **Recommended**
- `thin3`: 3.11% used (219.10 GiB available)
- `thin4`: 22.59% used (175.05 GiB available)
- `thin5`: 0.00% used (226.13 GiB available)
- `thin6`: 0.00% used (226.13 GiB available)

### 2. Fix thin2 Capacity Issue (Critical)

**Containers Using thin2:**
- CT 5000 (blockscout-1): 200GB disk, 96% used
- CT 6200: 50GB disk, 10% used
- Orphaned volume: vm-6201-disk-0 (50GB, 7.72% used) - may be unused

**Solutions:**
1. **Migrate containers to free storage:**
   - Use `pvesh` API to migrate CT 5000 to `thin1-r630-02` or `thin3`
   - Migrate CT 6200 to available storage
   - Clean up orphaned volumes if not in use

2. **Alternative:** Expand thin2 storage if possible

---

## Recommended Next Steps

### Immediate (Critical)
1. ✅ **Complete r630-02 migrations** using API-based method with storage parameter
2. ✅ **Migrate containers from thin2** to free up capacity
3. ✅ **Verify all migrations** and check container health

### High Priority
4. ✅ **Monitor CPU usage** on ml110 - should stabilize around 30-40%
5. ✅ **Check container health** after migrations
6. ✅ **Document storage mapping** for future migrations

### Medium Priority
7. ✅ **Investigate inactive storage pools** (data/thin1 on r630-02 are node-restricted)
8. ✅ **Optimize storage distribution** across all nodes
9. ✅ **Set up monitoring alerts** for storage >80% and CPU >70%

---

## Migration Commands for r630-02

### Using API-based Migration (Correct Method)

```bash
# On ml110 or via SSH
# For each container, use:

# besu-validator-4 (1003)
pvesh create /nodes/ml110/lxc/1003/migrate \
  --target r630-02 \
  --storage thin1-r630-02 \
  --online 1

# besu-validator-5 (1004)
pvesh create /nodes/ml110/lxc/1004/migrate \
  --target r630-02 \
  --storage thin1-r630-02 \
  --online 1

# besu-sentry-4 (1503)
pvesh create /nodes/ml110/lxc/1503/migrate \
  --target r630-02 \
  --storage thin1-r630-02 \
  --online 1

# besu-sentry-ali (1504)
pvesh create /nodes/ml110/lxc/1504/migrate \
  --target r630-02 \
  --storage thin1-r630-02 \
  --online 1

# besu-rpc-public-1 (2201)
pvesh create /nodes/ml110/lxc/2201/migrate \
  --target r630-02 \
  --storage thin1-r630-02 \
  --online 1

# besu-rpc-ali-0x8a (2303)
pvesh create /nodes/ml110/lxc/2303/migrate \
  --target r630-02 \
  --storage thin1-r630-02 \
  --online 1

# besu-rpc-thirdweb-0x8a-1 (2401)
pvesh create /nodes/ml110/lxc/2401/migrate \
  --target r630-02 \
  --storage thin1-r630-02 \
  --online 1
```

### Migrate thin2 Containers

```bash
# On r630-02
# Migrate CT 5000 (blockscout-1) to thin1-r630-02
pvesh create /nodes/r630-02/lxc/5000/migrate \
  --target r630-02 \
  --storage thin1-r630-02 \
  --online 0  # Stop first if needed

# Migrate CT 6200 to thin1-r630-02
pvesh create /nodes/r630-02/lxc/6200/migrate \
  --target r630-02 \
  --storage thin1-r630-02 \
  --online 0
```

---

## Expected Results After Completion

### ml110
- **CPU Usage:** ~15-20% (down from 81.5%)
- **Container Count:** ~9 containers (down from 23)
- **Status:** ✅ Optimally loaded for management/light workloads

### r630-01
- **CPU Usage:** ~15-20% (up from 8.2%)
- **Container Count:** ~57 containers
- **Status:** ✅ Well-balanced workload distribution

### r630-02
- **CPU Usage:** ~15-20% (up from 5.3%)
- **Container Count:** ~14 containers (up from 7)
- **Status:** ✅ Better utilization of high-core CPU
- **Storage:** thin2 below 50% usage

---

## Lessons Learned

1. **Storage Compatibility:** Always check available storage on target node before migration
2. **API vs CLI:** Use `pvesh` API for migrations when storage conversion is needed
3. **Migration Strategy:** Consider two-step migration (node first, then storage) for complex scenarios
4. **Verification:** Always verify migrations and check container health after completion

---

**Report Generated:** 2026-01-20  
**Status:** Partial Success - 7/14 migrations completed successfully