Re: [CentOS] claiming unsused space back

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@cmadams.net To: "centos" centos@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@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.