fix 'an unique' to 'a unique'

Change-Id: I1a0aaa6b76acd43e90c539cc324291dd6d729359
This commit is contained in:
MaoyangLiu 2018-11-24 11:18:42 +08:00
parent 50a548df9a
commit 8fc5ef9560
1 changed files with 1 additions and 1 deletions

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@ -116,7 +116,7 @@ file**
``storage_policies``
Storage policies determine on which hardware data is stored, how
the data is stored across that hardware, and in which region the
data resides. Each storage policy must have an unique ``name``
data resides. Each storage policy must have a unique ``name``
and a unique ``index``. There must be a storage policy with an
index of 0 in the ``swift.yml`` file to use any legacy containers
created before storage policies were instituted.