ZFS Replace Storage mirror (raid1) case Proxmox backup server

Detach old device (storage) from server
Follow command below

zpool replace -f <pool> <old device> <new device>

zpool replace -f backupvm /dev/sdc1 /dev/sdd

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Import ZFS to Another Machine (case: proxmox backup server)

1. Move HDD/SAS to new server

2. Check pool with command "zpool import"

3. Command "zpool import -f namepool" (Eg: zpool import -f pooltest)  

4. If you backup file datastore.cfg (/etc/proxmox-backup/datastore.cfg) restore to new server or you add manually

DONE

Ref: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-EY/

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Convert virtual disk vm using qemu-img

1. convert raw to vmdk
 qemu-img convert -p -f raw -O vmdk /folder/kvm_virtual_machine.raw /folder/kvm_virtual_machine.vmdk

-p: presenting the conversion progress
-f: format of the source image
-O: format of the target image

2. if another virtual hard disk please adjust

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ZFS proxmox directory pool and export vm raw

Find directory ZFS on proxmox (example copy vm, etc) 

1. check directory

    - cd /dev/zvol/namezfspool

2. export raw

    - dd if=/dev/zvol/<pool>/<volume> of=/var/lib/vz/images/file.raw bs=1m
    - qemu-img convert -f raw -O qcow2 file.raw file.qcow2

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HA and Failover Proxmox

 Requirement

- 3 node 
- ZFS local per node

Cluster Node

- Create cluster node
- Copy join infomation 
- Click join cluster and paste join infomation
- Enter password and join
- Repeat another node

Setup HA

- Click Add
- Choice VM with enter VM id

Setup Replication

- Click Add
- Enter VM id, target: node 2, Schedule: */1
- Repeat another node

DONE

Testing Failover with force shutdown node 1 (VM Running), waiting 2-3 minute. If VM swap to another node, config success.

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