This document provides an overview of ZFS replication. It describes the setting and flow, including connecting the primary and secondary systems, creating snapshots on the primary, and using zfs send and receive commands over SSH to replicate snapshots from the primary to the secondary. Software components include utilities for rsync, SSH, and managing ZFS replication through APIs. A simple demonstration shows generating an SSH key, copying it to the secondary, taking a snapshot, and replicating it.

1. Spyua
ZFS Replication Overview

2. Outline
1.Overview
2.Setting && Flow
3.Software Block Diagram
4.AP&&EXE FUN
5.Simple Demo

3. Overview
Primary Secondary
Snapshot A
Snapshot B
Snapshot C
ZFS Replication
Pool
Based on Snapshot

4. Setting && Flow
Primary Secondary
Command: zfs send zpxxx/dsxxx@sn01 |
ssh –o StrictHostKeyChecking=no IP zfs receive zpxxx/dsxxx
Step1: Connect Setting
Use rsync transfer primary public key to secondary authorized_keys.
Step2: Create Snapshot
Primary create snapshot which do replication.
Step3: Execute zfs command
Execute zfs replication command.

5. Step1:Connect Setting
Primary
1.Install rsync
2.Setting rsync.secrets
setting the secondary rsync password in primary rsync.secrets.
1.Install rsync
2.Setting rsync.conf and rsync.secrets (/etc/..)
rsync connect setting.
1.Rsync Setting
Use ssh-keygen generator public key
ssh-keygen -t rsa (/root/.ssh/id_rsa.pub).
2.Primary generator the public key.
3.Primary use rsync command to transfer public key
Secondary

6. Step2: Create Snapshot
Primary Secondary
Snapshot A
Snapshot B
Snapshot C
ZFS Replication
Pool
Command:zfs snapshot zpxxx/dsxxx@snxx

7. Step3: Execute zfs Command
Primary Secondary
Snapshot A
Snapshot B
Snapshot C
ZFS Replication
Pool
Command:
zfs send [shapshot]
| ssh –o StrictHostKeyChecking=no IP zfs receive [dataset Path]
zfs send –i [shapshot1] [snapshot2]
| ssh –o StrictHostKeyChecking=no IP receive [dataset Path]

8. Software Block Diagram
Connect Setting
RPC Exe Fun
Put public key to remote
SSH Exe Fun
Gen Public Key
ZFS AP
Snapshot
Replication
Remote Host
~/.ssh/authorized_keys
ssh command
zfs send && zfs receive
sshkey transfer

9. AP&&EXE FUN
•RSYNC EXE
rsync_exe.py
•SSH EXE
ssh_exe.py
•ZFS REPLICATION AP
stor_rep_add.py
stor_rep_list.py

10. Simple Demo
Primary Execution: ssh-keygen -t rsa

11. Simple Demo
Primary Execution:
Primary copy id_rsa.pub to secondary

12. Simple Demo
Primary Execution:
zfs snapshot zp146093/ds808450@sn01

13. Simple Demo
Primary Execution:
zfs send zp146093/ds808450@sn01
| ssh -p 234 10.88.3.91 zfs receive zp712879/ds80845

14. ＥＮＤ

15. Software Block Diagram
Connect Setting
RSYNC Exe Fun
Put public key to remote
SSH Exe Fun
Gen Public Key
ZFS AP
Snapshot
Replication
Remote Host
~/.ssh/authorized_keys
ssh command
zfs send && zfs receive
Rsync transfer