case sensitivity on encrypted share

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case sensitivity on encrypted share

DSM 1621+
Operating system
  1. Linux
Mobile operating system
  1. Android
I encountered a strange problem on my DiskStation, which I eventually traced to case insensitivity in file-name matching. My share is encrypted. From a shell prompt directly in DSM, the issue is easy to demonstrate.

Consider the following commands:

$ mkdir tmp
$ touch tmp/foo
$ ls tmp/Foo

In a standard Linux (or more generally POSIX) environment, the capitalized name would not be found in the directory containing only one file, in the lower-case form.

I have found no documentation suggesting that a DSM share would behave as such, except when exposed through a file-sharing scheme that may have more relaxed case sensitivity.

Why am I observing such behavior?

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