Il 20-01-2020 15:40 Zdenek Kabelac ha scritto:
Yep - kernel metadata 'per thin LV' are reasonably small - so even for big thin devices it still should fit within your time boundaries. (effectively thin snapshot just increases 'mapping' sharing between origin and its snapshot - so the time needed depends on how many bTree nodes needs to be updated - so if you would manage to create heavily fragmented multi TiB thinLV, the time depends on speed of you metadata device - as long as device is fast (i.e. >= SSD) - operation should be quick. But ATM there is no scientific proof for the worst case scenario.
Well, I'll do some tests and update here if finding anything interesting.
Thanks. -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it email: g.danti@xxxxxxxxxx - info@xxxxxxxxxx GPG public key ID: FF5F32A8 _______________________________________________ linux-lvm mailing list linux-lvm@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
