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Re: [linux-lvm] Progress on LVM2 snapshots



thanks!

so when is the RHEL4 Update 3 timescale? :)


will try the patches u mentioned.


ming


On Fri, 2005-07-29 at 21:47 +0100, Alasdair G Kergon wrote:
> On Thu, Jul 28, 2005 at 01:44:00PM -0400, Ming Zhang wrote:
> > 1) very hard to solve technically. or
> > 2) not so easy but doable, just no time and human resource?
>  
> The hardest part of the fix involves changing the sequence of 
> device-mapper ioctls that LVM2 uses, and that's a couple of weeks' 
> development work, now pencilled into the RHEL4 Update 3 timescale.
> 
> In the meantime, you can apply the snapshot patches in the -udm
> tree and use 'dmsetup' manually to activate and deactivate snapshots
> when lvm2 fails.
> 
> Patches 8 and 9 at:
>   ftp://sources.redhat.com/pub/dm/patches/2.6-unstable/2.6.12-rc2/2.6.12-rc2-udm1/
> (Further patches are needed, but those two plus correct dmsetup use
> should avoid machine lockups.)
> 
> Alasdair


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