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UTF-8 files - creation fails when using surrogate_pairs, non-regular characters, emoji, etc

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ontap-9
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Applies to

ONTAP 9

Issue

  • Creating UTF-8 named files fail if those files use surrogate_pairs like non-regular characters, emoji, etc.
  • Windows:

The file name you specified is not valid or too long.  Specify a different file name

  • On fixed releases of ONTAP for bug 708253, the EMS entry wafl.dir.surrpair.filename is displayed when a client attempts file operations.

Mon Nov 17 11:19:47 -0600 [nodeb: wafl_exempt14: wafl.dir.surrpair.filename:error]: Failed to create a file with surrogate pair characters in the name in the directory /vol/vole/126/Doc/.

  • In a packet trace, the error from the create request for a file with such characters will be NT Status: STATUS_OBJECT_NAME_INVALID (0xc0000033).
  • It is not possible to use surrogate pair characters until ONTAP 9.5.

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