[Gluster-users] Gluster x Ceph: disk space consuming...

[Dmitry Melekhov]

04.08.2021 20:19, Gilberto Ferreira пишет:
> Well
> I make some POC but doesn't seems to me any advantage in use VDO.
> Without VDO I have created a single Ubuntu VM Server, and the SO just 
> used 3.6G.
> But using VDO I noticed that the underlay used the very same 3.6G.
> Perhaps I am doing something wrong.
> I had have used the following command in order to create VDO:
> vdo create --name=vdo1 --device=/dev/sdb --emulate512=enabled 
> --vdoLogicalSize=200G
>
> Thanks for any advice.


Well, I use VDO on RHEL based backup server and here is how it looks like:

  vdostats --si
Device                    Size      Used Available Use% Space saving%
/dev/mapper/vdo1          3.8T      2.3T      1.6T  59% 54%


df -h

/dev/mapper/vdo1        7,5T         4,6T  3,0T           61% /BACKUP

As you can see I saved 1/2 of space.

On filesystem level file sizes will be the same , of course...


>
>
>
> ---
> Gilberto Nunes Ferreira
> (47) 99676-7530 - Whatsapp / Telegram
>
>
>
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>
> Em qua., 4 de ago. de 2021 às 07:26, Dmitry Melekhov <dm at belkam.com 
> <mailto:dm at belkam.com>> escreveu:
>
>     04.08.2021 14:19, Strahil Nikolov пишет:
>>     Are you sure you did enable the '--emulate512' when creating VDO ?
>>
>     I'm sure we did not add  this option.
>
>     Thank you, we'll try .
>
>
>
>>     Best Regards,
>>     Strahil Nikolov
>>
>>         On Wed, Aug 4, 2021 at 5:36, Dmitry Melekhov
>>         <dm at belkam.com> <mailto:dm at belkam.com> wrote:
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