dd if=/dev/zero of=fs.img bs=1K seek=10240 count=0
[root@linux_c ~]# ll fs.img
-rw-r--r-- 1 root root 10485760 Oct 13 14:44 fs.img
[root@linux_c ~]# du fs.img
0 fs.img
备份到networker上显示
root@linux_a nsr]# mminfo -r "nsavetime,name,volume,client,sumsize" -N /root/fs.img
save time name volume client size
1223880063 /root/fs.img test.a linux_c.shecs.com 4 KB
恢复后显示
[root@linux_c ~]# ll fs.img*
-rw-r--r-- 1 root root 10485760 Oct 13 14:47 fs.img
-rw-r--r-- 1 root root 10485760 Oct 13 14:44 fs.img.R
[root@linux_c ~]# du fs.img*
0 fs.img
12 fs.img.R
