1,gzip+scp+gunzip
server1压缩并传送:
server1$ gzip -c /backup/mydb/mytable.MYD > mytable.MYD.gz server1$ scp mytable.MYD.gz root@server2:/var/lib/myql/mydb/
server2解压:
server2$ gunzip /var/lib/mysql/mydb/mytable.MYD.gz
2,通道+ssh
server1压缩通过通道ssh传送到server2并在server2上解压
server1$ gzip -c /backup/mydb/mytable.MYD | ssh root@server2 "gunzip -c - > /var/lib/mysql/mydb/mytable.MYD"
3,通道+netcat
server2监听12345端口:
server2$ nc -l -p 12345 | tar xvzf -
server1传送数据:
server1$ tar cvzf - /var/lib/mysql/mydb/mytable.MYD | nc -q 1 server2 12345
4,rsync
server1$ rsync -ave ssh server2:/var/lib/mysql/mydb/ /home/mydb/
速度对比:
100 Mb/S Ethernet LAN.文件大小为738 MB可压缩至100 MB
Method Time (seconds) rsync without compression 71 scp without compression 68 nc without compression 67 rsync with compression (-z) 63 gzip, scp, and gunzip 60(44 + 10 + 6) ssh with compression 44 nc with compression 42