[Discuss] Backing up the entire filesystem

Shirley Márquez Dúlcey mark at buttery.org
Fri Oct 26 13:55:57 EDT 2018


Another thing to keep in mind is that ZFS does have one flaw; it's a
memory hog. If you have a large ZFS filesystem you will need a LOT of
RAM to get acceptable performance. But it does represent the current
state of the art for file system data integrity.

I have to allow that my only experience with ZFS to date is with
FreeNAS, which is based on FreeBSD. I have moved all my bulk data
storage to a pair of NAS boxes and have a relatively small amount of
local space on each computer. FreeNAS does not use ZFS for the system
volume.
On Fri, Oct 26, 2018 at 1:40 PM Shirley Márquez Dúlcey <mark at buttery.org> wrote:
>
> I don't think any of the usual bootloaders support ZFS. The usual way
> to handle that is to create a small /boot filesystem using something
> else like ext4, just like you did back in the days when large hard
> drives weren't supported by the BIOS and therefore the bootloader
> couldn't access their entire capacity. The installers for most distros
> can handle setting up a system that way.
> On Fri, Oct 26, 2018 at 12:32 PM Marco Milano <marco.milano at gmx.com> wrote:
> >
> >
> >
> > On 10/26/18 11:38 AM, Rich Pieri wrote:
> >
> > >
> > > Having recently-ish rebuilt my home server with full ZFS I have to say
> > > that ZFS makes backups ridiculously easy. And quick.
> >
> > How did you get the root filesystem under ZFS?
> >
> > Is there a nice/clean/easy recipe ?
> >
> > -- Marco
> >
> >
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