Re: Summary: [zfs-discuss] Poor man's backup by attaching/detaching mirror drives on a _striped_ pool?

2007-05-06 Thread Matthew Ahrens
Constantin Gonzalez wrote: - The supported alternative would be zfs snapshot, then zfs send/receive, but this introduces the complexity of snapshot management which makes it less simple, thus less appealing to the clone-addicted admin. ... IMHO, we should investigate if something like zpool

Re: [zfs-discuss] Poor man's backup by attaching/detaching mirror drives on a _striped_ pool?

2007-04-12 Thread Richard Elling
Mark J Musante wrote: On Wed, 11 Apr 2007, Constantin Gonzalez Schmitz wrote: So, instead of detaching, would unplugging, then detaching work? I don't see why that couldn't work. The original question of striped mirrors would be similar: - zpool create tank mirror mirror - {physically

Re: [zfs-discuss] Poor man's backup by attaching/detaching mirror drives on a _striped_ pool?

2007-04-12 Thread Roch - PAE
I lost track if this rfe was posted yet: 5097228 provide 'zpool split' to create new pool... http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=5097228 -r Mark J Musante writes: > On Wed, 11 Apr 2007, Constantin Gonzalez Schmitz wrote: > > > So, instead of detaching,

Re: [zfs-discuss] Poor man's backup by attaching/detaching mirror drives on a _striped_ pool?

2007-04-12 Thread Mark J Musante
On Wed, 11 Apr 2007, Constantin Gonzalez Schmitz wrote: > So, instead of detaching, would unplugging, then detaching work? I don't see why that couldn't work. The original question of striped mirrors would be similar: - zpool create tank mirror mirror - {physically move and to new box}

Summary: [zfs-discuss] Poor man's backup by attaching/detaching mirror drives on a _striped_ pool?

2007-04-12 Thread Constantin Gonzalez
Hi, here's a quick summary of the answers I've seen so far: - Splitting mirrors is a current practice with traditional volume management. The goal is to quickly and effortlessly create a clone of a storage volume/pool. - Splitting mirrors with ZFS can be done, but it has to be done the har

Re: [zfs-discuss] Poor man's backup by attaching/detaching mirror drives on a _striped_ pool?

2007-04-11 Thread Torrey McMahon
Frank Cusack wrote: On April 11, 2007 11:54:38 AM +0200 Constantin Gonzalez Schmitz <[EMAIL PROTECTED]> wrote: Hi Mark, Mark J Musante wrote: On Tue, 10 Apr 2007, Constantin Gonzalez wrote: Has anybody tried it yet with a striped mirror? What if the pool is composed out of two mirrors? Can I

Re: [zfs-discuss] Poor man's backup by attaching/detaching mirror drives on a _striped_ pool?

2007-04-11 Thread Frank Cusack
On April 11, 2007 11:54:38 AM +0200 Constantin Gonzalez Schmitz <[EMAIL PROTECTED]> wrote: Hi Mark, Mark J Musante wrote: On Tue, 10 Apr 2007, Constantin Gonzalez wrote: Has anybody tried it yet with a striped mirror? What if the pool is composed out of two mirrors? Can I attach devices to bo

Re: [zfs-discuss] Poor man's backup by attaching/detaching mirror drives on a _striped_ pool?

2007-04-11 Thread Constantin Gonzalez Schmitz
Hi Mark, Mark J Musante wrote: > On Tue, 10 Apr 2007, Constantin Gonzalez wrote: > >> Has anybody tried it yet with a striped mirror? What if the pool is >> composed out of two mirrors? Can I attach devices to both mirrors, let >> them resilver, then detach them and import the pool from those? >

Re: [zfs-discuss] Poor man's backup by attaching/detaching mirror drives on a _striped_ pool?

2007-04-10 Thread Mark J Musante
On Tue, 10 Apr 2007, Constantin Gonzalez wrote: > Has anybody tried it yet with a striped mirror? What if the pool is > composed out of two mirrors? Can I attach devices to both mirrors, let > them resilver, then detach them and import the pool from those? You'd want to export them, not detach th

[zfs-discuss] Poor man's backup by attaching/detaching mirror drives on a _striped_ pool?

2007-04-10 Thread Constantin Gonzalez
Hi, one quick&dirty way of backing up a pool that is a mirror of two devices is to zpool attach a third one, wait for the resilvering to finish, then zpool detach it again. The third device then can be used as a poor man's simple backup. Has anybody tried it yet with a striped mirror? What if th