[lustre-discuss] Cannot move files to another directory

Lixin Liu liu at sfu.ca
Fri Dec 11 06:39:38 PST 2020

I tried to send this yesterday, but did not seem to get through. Try again now.


We moved our MDT and MGT to a new storage device (DDN SFA200NV) this week. Everything
appears to work but there is a very strange problem. We could not "mv" a file to another directory.
This is for both old and new data. Here is an example:

$ mkdir testdir

$ dd if=/dev/zero of=testfile bs=1024k count=10
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.292493 s, 35.8 MB/s

$ cp testfile testdir/
$ mv testfile testdir/testfile.new
mv: cannot move 'testfile' to 'testdir/testfile.new': No such file or directory

$ chmod 666 testfile

$ ls -l
total 10244
drwxr-x--- 2 liu liu     4096 Dec 10 08:12 testdir
-rw-rw-rw- 1 liu liu 10485760 Dec 10 08:11 testfile

$ rm testfile

"mv" a file in the same directory works.

I have an open case with DDN about this issue, but would like to know if someone here
has any suggestions.


Lixin Liu
Simon Fraser University

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