On 07/31/2017 09:46 AM, Eric Robinson wrote: > > When I create a filesystem on an LVM logical volume on a drbd device, > I see “Discarding device blocks.” I wouldn’t think that discards would > be replicated, but it is going super slow. I mean SUPER slow. Discards > normally go a 100 times faster. Are discards replicated across the > network for some reason? > Obviously. If a block is discarded locally, the same change has to be applied to the replica, otherwise a read from the same block on both systems can yield different results. > > -- > > Eric Robinson > -- Robert Altnoeder +43 1 817 82 92 0 [email protected]
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