[linux-lvm] Snapshot behavior on classic LVM vs ThinLVM

Zdenek Kabelac zkabelac at redhat.com
Mon Apr 24 14:48:00 UTC 2017

Dne 24.4.2017 v 15:49 Gionatan Danti napsal(a):
> On 22/04/2017 23:22, Zdenek Kabelac wrote:
>> ATM there is even bug for 169 & 170 - dmeventd should generate message
>> at 80,85,90,95,100 - but it does it only once - will be fixed soon...
> Mmm... quite a bug, considering how important is monitoring. All things 
> considered, what do you feel is the better approach to monitor? It is 
> possibile to register for dmevents?

Not all that big once - you get 1 WARNING always.
And releases  169 & 170 are clearly marked as developer releases - so they are 
meant for testing and discovering these bugs...

>> Not seen metadata error for quite long time...
>> Since all the updates are CRC32 protected it's quite solid.
> Great! Are the metadata writes somehow jounaled or are written in-place?

Surely there is journal


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