Re: LVM2 snapshot question

2006-05-15 Thread Alex Malinovich
On Mon, 2006-05-15 at 13:56 -0500, Grant Thomas wrote: > > On 5/13/06, Alex Malinovich <[EMAIL PROTECTED]> wrote: > >It's one of the greatest > > strengths of LVM in my opinion. (Second only to pairing it with xfs and > > allowing growing the filesystem without unmounting.) > > > Doesn't Reiser al

Re: LVM2 snapshot question

2006-05-13 Thread Arafangion
Jiann-Ming Su wrote: > On 5/13/06, Arafangion <[EMAIL PROTECTED]> wrote: > >> >> What happens if the data changes during your sync? This is why people >> are looking at using LVM snapshots - during which rsync'ing would be a >> good idea >> > > How does the LVM snapshot get around the problem of a

Re: LVM2 snapshot question

2006-05-13 Thread Jiann-Ming Su
On 5/13/06, Steve Lamb <[EMAIL PROTECTED]> wrote: Jiann-Ming Su wrote: > I have no experience with the LVM snapshots. I've been using rsync > snapshots as described at > http://www.mikerubel.org/computers/rsync_snapshots/. Or one could skip doing all of that manually and just do it with dir

Re: LVM2 snapshot question

2006-05-13 Thread Alex Malinovich
On Sat, 2006-05-13 at 13:00 -0400, Jiann-Ming Su wrote: > On 5/13/06, Arafangion <[EMAIL PROTECTED]> wrote: > > > > What happens if the data changes during your sync? This is why people > > are looking at using LVM snapshots - during which rsync'ing would be a > > good idea > > > > How does the LV

Re: LVM2 snapshot question

2006-05-13 Thread Jiann-Ming Su
On 5/13/06, Arafangion <[EMAIL PROTECTED]> wrote: What happens if the data changes during your sync? This is why people are looking at using LVM snapshots - during which rsync'ing would be a good idea How does the LVM snapshot get around the problem of a changing filesystem during the snapsho

Re: LVM2 snapshot question

2006-05-12 Thread Steve Lamb
Jiann-Ming Su wrote: > I have no experience with the LVM snapshots. I've been using rsync > snapshots as described at > http://www.mikerubel.org/computers/rsync_snapshots/. Or one could skip doing all of that manually and just do it with dirvish. Description: Filesystem based backup system u

Re: LVM2 snapshot question

2006-05-12 Thread Arafangion
Jiann-Ming Su wrote: > On 5/12/06, Grant Thomas <[EMAIL PROTECTED]> wrote: > >> >> I would use the snapshot functionality to create a snapshot of a live >> system, and then backup the system using the snapshot instead of the >> actual system. >> > > I have no experience with the LVM snapshots. I'

Re: LVM2 snapshot question

2006-05-12 Thread Jiann-Ming Su
On 5/12/06, Grant Thomas <[EMAIL PROTECTED]> wrote: I would use the snapshot functionality to create a snapshot of a live system, and then backup the system using the snapshot instead of the actual system. I have no experience with the LVM snapshots. I've been using rsync snapshots as descri

Re: LVM2 snapshot question

2006-05-12 Thread Arafangion
Grant Thomas wrote: > My main issue is using snapshots to backup a system implementing LVM2. > > The LVM howto, section 3.8, states that any filesystem that is to have > a snapshot taken of it should be in a consistent state. I do maintain > databases that reside on the testing server, and I a

LVM2 snapshot question

2006-05-12 Thread Grant Thomas
My main issue is using snapshots to backup a system implementing LVM2. I'm using LVM2 on a testing server, using ReiserFS as the filesystems for the partitions. The system is running 2.6.15-1-k7 as the kernel. Please correct me if I'm wrong. I would use the snapshot functionality to create a sn