On Tue, Aug 16, 2016 at 5:43 PM, Doug Dumitru <doug@xxxxxxxxxx> wrote: > One last thing I would highly recommend is: > > Secure erase the replacement disk before rebuilding onto it. > > If the replacement disk is "pre conditioned" with random writes, even if > very slowly, this will lower the write performance of the disk during the > rebuild. Does that also apply to brand-new disks from the manufacturer? I.e., should we just always do a secure erase, or sometimes depending on how the drive was sourced? -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html