proxmox/reports/R630_01_MIGRATION_STATUS.md

r630-01 Migration Status - VMIDs 100-130 and 7800-7811

Date: 2025-01-20
Status: ⚠️ Migration Blocked - Storage Configuration Issue
Issue: Source storage (thin1) is disabled on r630-02

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Migration Requirements

VMs to Migrate

VMIDs 100-130 (7 containers): 96 GB total

• 100, 101, 102, 103, 104, 105, 130

VMIDs 7800-7811 (5 containers): 210 GB total

• 7800, 7801, 7802, 7810, 7811

Total: 306 GB required

r630-01 Storage Available

• thin1: 208 GB (sufficient for VMIDs 100-130)
• local-lvm: 200 GB
• local: 536 GB (sufficient for VMIDs 7800-7811)
• Total: 944 GB (more than sufficient)

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Current Blocking Issue

Problem: thin1 Storage Disabled on r630-02

Issue:

• VMs on r630-02 use thin1 storage
• thin1 storage shows as disabled on r630-02
• vzdump backup fails: "storage 'thin1' is not available on node 'r630-02'"
• Direct migration fails with same error

Storage Status on r630-02:

thin1: disabled (but has volumes!)
thin4: active (has VMIDs 7800-7811)

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Solution Options

Option 1: Enable thin1 Storage on r630-02 (Recommended)

Enable thin1 storage on r630-02 so backups can work:

1. Check thin1 configuration on r630-02
2. Enable thin1 storage
3. Then perform backup/restore migration

Pros: Allows standard backup/restore method
Cons: Requires fixing storage configuration first

Option 2: Change VM Storage Before Migration

1. Change VM storage to local (directory storage, always available)
2. Then migrate normally
3. Optionally change storage on target if needed

Pros: Works around the disabled storage issue
Cons: Requires storage change operation first

Option 3: Manual Storage Volume Copy (Complex)

1. Use LVM commands to copy storage volumes
2. Move/copy VM configs
3. Complex and risky

Pros: Direct volume copying
Cons: Very complex, error-prone

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Recommended Approach

Step 1: Enable thin1 Storage on r630-02

Fix the storage configuration so backups can work:

# On r630-02
# Check thin1 configuration
cat /etc/pve/storage.cfg | grep -A 6 "lvmthin: thin1"

# Enable thin1 storage
pvesm set thin1 --disable 0

Step 2: Perform Migration

Once thin1 is enabled, use backup/restore method:

VMIDs 100-130 → thin1 on r630-01:

for vmid in 100 101 102 103 104 105 130; do
    vzdump $vmid --storage local --node r630-02 --compress gzip --mode stop
    BACKUP=$(ls -t /var/lib/vz/dump/vzdump-lxc-$vmid-*.tar.gz | head -1)
    pct restore $vmid $BACKUP --storage thin1 --target r630-01
    pct destroy $vmid  # on source
done

VMIDs 7800-7811 → local on r630-01:

for vmid in 7800 7801 7802 7810 7811; do
    vzdump $vmid --storage local --node r630-02 --compress gzip --mode stop
    BACKUP=$(ls -t /var/lib/vz/dump/vzdump-lxc-$vmid-*.tar.gz | head -1)
    pct restore $vmid $BACKUP --storage local --target r630-01
    pct destroy $vmid  # on source
done

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Current Status

• ✅ Storage capacity verified (sufficient)
• ✅ Migration plan created
• ⚠️ Blocked: thin1 storage disabled on r630-02
• ⏳ Next Step: Enable thin1 storage on r630-02

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Next Steps

1. Enable thin1 storage on r630-02
2. Verify backup works
3. Perform migration using backup/restore
4. Verify VMs on r630-01

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Last Updated: 2025-01-20
Status: ⚠️ MIGRATION BLOCKED - Storage Configuration Issue