Re: [BackupPC-users] Don't use rsync -H!! (was Re: copying the pool to a new filesystem?!)

2010-12-07 Thread Robin Lee Powell
On Wed, Dec 08, 2010 at 12:06:40AM -0500, Dan Pritts wrote: > If I had that big a pool, I think I'd not be using a single > backuppc instance, but that's just me. I'm guessing it works well > for you, I'm glad it does. We aren't; we have 6. The *smallest* is about 4 TiB if disk, most of it in us

Re: [BackupPC-users] Don't use rsync -H!! (was Re: copying the pool to a new filesystem?!)

2010-12-07 Thread Dan Pritts
On Dec 7, 2010, at 2:44 PM, Robin Lee Powell wrote: > On Tue, Dec 07, 2010 at 02:18:51PM -0500, Dan Pritts wrote: >> umount /var/lib/backuppc >> dd if=/dev/onedisk of=/dev/someotherdisk bs=1M > > Only works if you have identical disks, which is hard when you've > got a few TiB on a SAN. The disks

Re: [BackupPC-users] Don't use rsync -H!! (was Re: copying the pool to a new filesystem?!)

2010-12-07 Thread Robin Lee Powell
On Wed, Dec 08, 2010 at 11:54:13AM +1100, Dale King wrote: > On Tue, Dec 07, 2010 at 12:38:00AM -0800, Robin Lee Powell wrote: > > On Tue, Dec 07, 2010 at 07:58:05AM +, Tyler J. Wagner wrote: > > > On Mon, 2010-12-06 at 10:51 -0800, Robin Lee Powell wrote: > > > > IME it's *much* faster that wa

Re: [BackupPC-users] Don't use rsync -H!! (was Re: copying the pool to a new filesystem?!)

2010-12-07 Thread Dale King
On Tue, Dec 07, 2010 at 12:38:00AM -0800, Robin Lee Powell wrote: > On Tue, Dec 07, 2010 at 07:58:05AM +, Tyler J. Wagner wrote: > > On Mon, 2010-12-06 at 10:51 -0800, Robin Lee Powell wrote: > > > IME it's *much* faster that way; you do BackupPC_TarPCCopy, and > > > then rsync the cpoll *witho

Re: [BackupPC-users] Don't use rsync -H!! (was Re: copying the pool to a new filesystem?!)

2010-12-07 Thread Robin Lee Powell
On Tue, Dec 07, 2010 at 06:19:45PM -0600, Les Mikesell wrote: > On 12/7/10 5:19 PM, Tyler J. Wagner wrote: > > On Tue, 2010-12-07 at 14:18 -0500, Dan Pritts wrote: > >> Not exactly an answer to your question, but i would do this: > >> > >> umount /var/lib/backuppc dd if=/dev/onedisk > >> of=/dev/so

Re: [BackupPC-users] Don't use rsync -H!! (was Re: copying the pool to a new filesystem?!)

2010-12-07 Thread Les Mikesell
On 12/7/10 5:19 PM, Tyler J. Wagner wrote: > On Tue, 2010-12-07 at 14:18 -0500, Dan Pritts wrote: >> Not exactly an answer to your question, but i would do this: >> >> umount /var/lib/backuppc >> dd if=/dev/onedisk of=/dev/someotherdisk bs=1M > > Yes, that's a good way to copy the filesystem. But i

Re: [BackupPC-users] Don't use rsync -H!! (was Re: copying the pool to a new filesystem?!)

2010-12-07 Thread Tyler J. Wagner
On Tue, 2010-12-07 at 14:18 -0500, Dan Pritts wrote: > Not exactly an answer to your question, but i would do this: > > umount /var/lib/backuppc > dd if=/dev/onedisk of=/dev/someotherdisk bs=1M Yes, that's a good way to copy the filesystem. But if you want to move the files to another filesystem,

Re: [BackupPC-users] Don't use rsync -H!! (was Re: copying the pool to a new filesystem?!)

2010-12-07 Thread Robin Lee Powell
On Tue, Dec 07, 2010 at 02:18:51PM -0500, Dan Pritts wrote: > umount /var/lib/backuppc > dd if=/dev/onedisk of=/dev/someotherdisk bs=1M Only works if you have identical disks, which is hard when you've got a few TiB on a SAN. > In practice, rsync -H is the reasonable way to do what you're > after

Re: [BackupPC-users] Don't use rsync -H!! (was Re: copying the pool to a new filesystem?!)

2010-12-07 Thread Dan Pritts
On Dec 7, 2010, at 2:58 AM, Tyler J. Wagner wrote: > So, if you wanted to copy the entire /var/lib/backuppc directory to > another filesystem, what commands would you use, for example? Not exactly an answer to your question, but i would do this: umount /var/lib/backuppc dd if=/dev/onedisk of=/dev

Re: [BackupPC-users] Don't use rsync -H!! (was Re: copying the pool to a new filesystem?!)

2010-12-07 Thread Robin Lee Powell
On Tue, Dec 07, 2010 at 07:58:05AM +, Tyler J. Wagner wrote: > On Mon, 2010-12-06 at 10:51 -0800, Robin Lee Powell wrote: > > IME it's *much* faster that way; you do BackupPC_TarPCCopy, and > > then rsync the cpoll *without -H*. It shouldn't take any longer > > than the actual data transfer ti

Re: [BackupPC-users] Don't use rsync -H!! (was Re: copying the pool to a new filesystem?!)

2010-12-07 Thread Tyler J. Wagner
On Mon, 2010-12-06 at 10:51 -0800, Robin Lee Powell wrote: > IME it's *much* faster that way; you do BackupPC_TarPCCopy, and then > rsync the cpoll *without -H*. It shouldn't take any longer than the > actual data transfer time itself. So, if you wanted to copy the entire /var/lib/backuppc direct

[BackupPC-users] Don't use rsync -H!! (was Re: copying the pool to a new filesystem?!)

2010-12-06 Thread Robin Lee Powell
On Thu, Dec 02, 2010 at 01:27:17PM +0100, Oliver Freyd wrote: > Hello, > > I'm a happy user of BackupPC since a few years, > running an old installation of backuppc that was created > on some version of SuSE linux, then ported over to debian lenny. > > The pool is a reiserfs3 on LVM, about 300GB