ext3 vs vxfs major filesystem size differences
We have 3 RH5u4-64 servers. Server 1 is a standalone server. Servers 2 & 3 are clustered filesystem servers running Veritas CFS 5.0mp3.
Server 1's filesystem is EXT3 and was cloned from a Sun server running Veritas 5.0mp3-VXFS. Filesystem size returned from 'du' 'df' show about 428GB on both the Linux Standalone Server(EXT3) & the Sun Solaris Servers (vxfs).
We then cloned Server 1's filesystem (EXT3) to the 2-node CFS servers. Cloning was successful, but the filesystem sizes returned by 'du' 'df' show 128GB. Block Size for the EXT3 filesystem is 4k while blocksize for the VXFS filesystem is 1k.
Where did that other 300GB go?
I can see VXFS/CFS being slightly more efficient than EXT3 because it's been around much longer, but that can't possibly account for the vast difference.
Any ideas, anyone?