[Users] Big comparison Ploop and ext4 vs simfs vs ZFS

[Kirill Kolyshkin]

Pavel,

Thanks for sharing. I have a few comments.

1. The article only compares disk space usage and nothing else.
Performance, memory footprint, maintainability etc are all left aside. If
this is the only optimization criteria for you, it's fine, but usually such
comparison won't work. Say, you compare two Linux distros by their
installation time and find out that Gentoo is the worst of all, and any
live CD based one is the best (as it doesn't require installation at all,
so installation time is zero).

So, due to the fact you only have one criterion in your comparison, the
conclusions you came to are also incorrect, at least from my POV. It can be
something like "you can achieve disk space savings with ZFS, while with
ploop there is a certain overhead" or so.

2. "due to ploop bugs" — the term bugs is obviously used incorrect here.
On Jul 24, 2015 01:28, "Pavel Odintsov" <pavel.odintsov at gmail.com> wrote:

> Hello, folks!
>
> Big thanks for your attention to my work about ZFS:
> https://github.com/pavel-odintsov/OpenVZ_ZFS
>
> And I would like to share with community our own ZFS tests from
> FastVPS Eesti OU experience (fastvps.ru).
>
> We are company with 5 year experience with OpenVZ in heavy production
> usage.
>
> We have used ploop, simfs and ZFS for many years together. And we
> operate about 1PB (yep, it's single pe-ta-by-te) of customer's data
> with great care.
>
> So, we could share this article:
> http://www.stableit.ru/2015/07/effectiveness-of-zfs-usage-for-openvz.html
> which shown how ZFS bit ext4 and ploop.
>
> Feedback and another tests are welcome!
>
> Cheers!
>
> --
> Sincerely yours, Pavel Odintsov
> _______________________________________________
> Users mailing list
> Users at openvz.org
> https://lists.openvz.org/mailman/listinfo/users
>
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