[linux-lvm] Keep snapshots active for 24 hours?

Anselm Kruis A.Kruis at science-computing.de
Mon Dec 17 03:08:02 UTC 2001


Hi Wolfgang,

On Sun, 16 Dec 2001, Wolfgang Weisselberg wrote:

> Hi, Steve!
> 
> Steve Wray (steve.wray at the.net.nz) wrote 70 lines:
> 
> > - take a snapshot, install something or try something out
> > that might break something, then restore *directly* from
> > the snapshot if anything goes wrong; without having to actually
> > back it up to media and restore it.
> 
> Even better would be writable snapshots for that: 
> - make a snapshot of (everything where the install writes to
> - install the program
> - test it on the snapshot
> - junk the snapshot if the install is bad
> 
> and, of course, you might want to migrate changes from the
> snapshot to the original FS (or vice versa).  That however
> is a second feature.  Until then you'd have to do the install
> all over again -- once we actually get writable shnapshots.

I posted a patch for writeable snapshots about a month ago. Look for the
subject "[PATCH] writeable snapshots". The patch sould apply clean against
current LVM.

-Anselm

> 
> -Wolfgang
> 
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> 

---
 Anselm Kruis                                 Tel. +49 (0)89-356386-74
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