Re: Gluster x Ceph: disk space consuming...

[Gilberto Ferreira <gilberto.nunes32@xxxxxxxxx>]

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Gilberto Nunes Ferreira

(47) 99676-7530 - Whatsapp / Telegram

Em qua., 4 de ago. de 2021 às 14:10, Gilberto Ferreira <gilberto.nunes32@xxxxxxxxx> escreveu:

Ok.

But, with VDO I should see less consumed space, compared to a mounted point without VDO.

But this does not happen.

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Gilberto Nunes Ferreira

(47) 99676-7530 - Whatsapp / Telegram

Em qua., 4 de ago. de 2021 às 13:41, Dmitry Melekhov <dm@xxxxxxxxxx> escreveu:

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...

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Gilberto Nunes Ferreira

(47) 99676-7530 - Whatsapp / Telegram

Em qua., 4 de ago. de 2021 às 07:26, Dmitry Melekhov <dm@xxxxxxxxxx> 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@xxxxxxxxxx> wrote:

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