>>>>> "Heinz" == heinzm <heinzm@xxxxxxxxxx> writes: Heinz> In case of RAID levels 4,5 and 6 we have to check for the Heinz> capability to zero data on discards to avoid stripe data Heinz> corruption. I'm quite concerned about relying on discard_zeroes_data since it's a hint and not a hard guarantee. -- Martin K. Petersen Oracle Linux Engineering -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel