diff --git a/doc/tips/local_caching_of_annexed_files/comment_17_d1f0d7ac76f704ea71c4971ee7ed0cde._comment b/doc/tips/local_caching_of_annexed_files/comment_17_d1f0d7ac76f704ea71c4971ee7ed0cde._comment
new file mode 100644
index 0000000000..99eb3adc93
--- /dev/null
+++ b/doc/tips/local_caching_of_annexed_files/comment_17_d1f0d7ac76f704ea71c4971ee7ed0cde._comment
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+[[!comment format=mdwn
+ username="Mowgli"
+ avatar="http://cdn.libravatar.org/avatar/17ab194dddf7b7da59ec039cbb3ac252"
+ subject="reflink and subvolume"
+ date="2018-11-21T19:41:30Z"
+ content="""
+Well, I did not check reflink=auto. I just checked first with `git annex copy --to=cache` which simply duplicated every file. So there are two posibilities:
+
+1. reflink=auto doesn't work (I did not check but I think it work)
+2. git-annex does not recognise the other path to be on the same filesystem so went back to simply copy (very likely but joey has to check.)
+"""]]