Proposed F19 Feature: Add LVM Thin provisioning support to the yum-fs-snapshot plugin

Bill Nottingham notting at redhat.com
Tue Jan 29 19:44:06 UTC 2013


Jaroslav Reznik (jreznik at redhat.com) said: 
> = Features/YumFsSnapshotThinpSupport =
> https://fedoraproject.org/wiki/Features/YumFsSnapshotThinpSupport
> 
> Feature owner(s):  Ondrej Kozina <okozina AT redhat DOT com>, Mike Snitzer 
> <snitzer AT redhat DOT com >
>  
> For the purposes of system rollback: Provide the ability to create a snapshot 
> of all thinly provisioned LVM2 volumes associated with FS mount points that 
> are relevant to a yum transaction. 
> 
> == Detailed description ==
> Yum's fs-snapshot plugin already has support for LVM2's old snapshots. LVM2's 
> new thinp snapshots offer much more performance and ease administration. It is 
> desirable to have the life-cycle of snapshots that are created by yum's fs-
> snapshot plugin be managed by the snapper utility. As such it could be that 
> the yum fs-snapshot plugin is extend to provide a wrapper around snapper for 
> the creation of thinp based snapshots. 

Is this actually useful if anaconda doesn't set up the system to use the
thinp pool to begin with? (Because it doesn't.)

Bill


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