[CentOS] claiming unsused space back

Mon Jul 31 22:27:24 UTC 2017
Leroy Tennison <leroy at datavoiceint.com>

As has already been mentioned, some commands (or command options) are only supported on later releases, the man pages don't say this.  Does anyone know of a source of information listing the command, option and version it is implemented in?  That alone would be a great help.

----- Original Message -----
From: "Chris Adams" <linux at cmadams.net>
To: "centos" <centos at centos.org>
Sent: Monday, July 31, 2017 11:45:20 AM
Subject: Re: [CentOS] claiming unsused space back

Once upon a time, Warren Young <warren at etr-usa.com> said:
> Zeroing the free space not only prevents inclusion of these discarded FS blocks, they compress better, too.

Check out the "virt-sparsify" command - it does all of this for you.
Chris Adams <linux at cmadams.net>
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