Date: Wed, 03 Jul 2013 14:08:13 +1200 From: Berend de Boer <berend@pobox.com> To: Adam Vande More <amvandemore@gmail.com> Cc: freebsd-fs <freebsd-fs@freebsd.org> Subject: Re: EBS snapshot backups from a FreeBSD zfs file system: zpool freeze? Message-ID: <87ehbg5raq.wl%berend@pobox.com> In-Reply-To: <CA%2BtpaK1jQuKneQsxkVfxJGzXdPdLZfqBM1QWQ0e19nK5t71t1Q@mail.gmail.com> References: <87li5o5tz2.wl%berend@pobox.com> <CA%2BtpaK1jQuKneQsxkVfxJGzXdPdLZfqBM1QWQ0e19nK5t71t1Q@mail.gmail.com>
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>>>>> "Adam" =3D=3D Adam Vande More <amvandemore@gmail.com> writes:
Adam> What is wrong with a simple ZFS snapshot and running the
Adam> backup against it? =C2=A0I assume that's how most of us are doing
Adam> it.
For starters, I suppose very few people are using FreeBSD on AWS, so
"most of us" don't have a choice :-)
But this might simply be my understanding: what if I want to use the
EBS snapshot of the 5 disks I've taken and attach them to another
machine, and mount it?
But perhaps you don't know what an EBS snapshot is? It's not a backup
of your file system, it's a hardware-based backup of a disk at a
single point in time.
I.e. with EBS I can take a snapshot of 5 1TB, create new disks from
it, and attach it to another machine. In SECONDS.
I'm not looking for a way to take a ZFS snapshot, stream that to S3
for hours, and stream it back and write to another disk for hours.
But in case I didn't get you: could you please let me know if your
approach would allow me to take a consistent backup of my disks and
mount them on another server or use them for recovery purposes?
--=20
All the best,
Berend de Boer
------------------------------------------------------
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