Proxmox VE zsync 使用方式

2018-1-20

Main features

Speed limiter
Syncing interval can be set by cron
Syncing VM (disks and config) but also ZFS Datasets
Can keep multiple backups
Can be used in both directions
Can send on local host
Traffic is encrypted

預設Web 抄寫與 zsync 比較:

這邊重要的一點 zync 是不支援遷移的，另外主要是用在備份上面，不太適合HA。

安裝與使用:

apt-get install pve-zsync

開始傳送:

                      VMID    目標IP 儲存池 詳細列出狀態  快照數       名稱   每秒最大傳送速度(Byte)
pve-zsync sync –source 124 –dest IP:RAID –verbose –maxsnap 0 –name VM –limit 102400

接下來系統就會開始傳送VM檔

ssh root@IP — zfs list -rt snapshot -Ho name IP:RAID/vm-124-disk-1@rep_VM_2017-06-23_16:17:20

傳送完成之後就會顯示完成位置與容量大小

send from @ to RAID/vm-124-disk-1@rep_VM_2017-06-23_16:18:00 estimated size is 59.5G
total estimated size is 59.5G

接下來傳送VM 配置檔案:

scp  /etc/pve/qemu-server/124.conf root@server2:/etc/pve/qemu-server/

傳送完成之後編輯設定檔修改為當前Server 儲存池名稱:

virtio0: RAID:vm-124-disk-1,size=64G

例如: 
RAID:vm-124-disk-1,size=64G
改成
PCIeSSD:vm-124-disk-1,size=64G

定期作業:

pve-zsync create --source 192.168.1.1:100 --dest tank/backup --verbose --maxsnap 2 --name test1 --limit 512 --skip

排定在Crontab 裡面定時處理，請注意:

The --skip parameter disables the initial sync, that normally would be done immediately but can take a while, depending on the size of the backup. The initial sync will be done at the first sync time.

zsync 狀態:

root@zfs94:~# pve-zsync list
SOURCE                   NAME           STATE LAST SYNC           TYPE 
192.168.15.95:100        testing1       ok     2015-05-13_14:44:00 ssh  
192.168.15.95:data/test1 testing1       syncing2015-05-13_14:44:11 ssh  

root@zfs94:~# pve-zsync status
SOURCE                   NAME           STATUS 
192.168.15.95:100        testing1       ok    
192.168.15.95:data/test1 testing1       syncing

差異部分也可以使用zfs 快照傳送，重送方式如下:

zfs send <pool>/[<path>/]vm-<VMID>-disk-<number>@<last_snapshot> | [ssh root@<destination>] zfs receive <pool>/<path>/vm-<VMID>-disk-<number>

阅读剩余

THE END