[kwlug-disc] Why moving file in encrypted disk takes very long time?

[Raymond Chen]

Now the hard disk of my company desktop is encrypted by Mcafee Disk
Encryption. The file moving is terribly slow now, moving 10GB data to its
parent folder takes forever. I understand file reading and writing are
supposed to take longer, But why moving files? Shouldn't this just be a
record change in file allocation table? It looks like it decrypts and
re-encrypts all the files. That's a NTFS disk, it this the same for other
file system like EXT4?

Raymond
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://kwlug.org/pipermail/kwlug-disc_kwlug.org/attachments/20171106/3121c897/attachment.htm>