On Sun, Sep 18, 2016 at 11:13 AM, Benjammin2068 <benjammin2068@xxxxxxxxx> wrote: > In a followup question to my arrays, I have a question about the new WDs with the larger sector size geometry but support 512B sectors. > > I bought some WD Reds (WD10EFRX) drives. > > When I let the linux "Disk Utility" (palimpest <- who the heck named that anyway?) do the RAID management with a new drive, it partitions on cyls and not sectors. > > So it makes a partition and then complains to me it's off by 512bytes which could affect performance. This is one of the dumbest things, haha. I do not for the life of me understand what distribution won't backport this, if they're unwilling to put modern tools for modern hardware in their distributions. It's one of the simplest, safest backports they could do and yet they don't. Incredible to me. Anyway, yeah partition with something not from the Pleistocene. Seriously, it's that old, it's that much of a solved problem, for probably 5 years, maybe even longer. Any version of gdisk will do this correctly out of the box, so you can just install that from your existing old distro presumably. And if you can't, then get a recent live CD from pretty much anybody: Fedora 23 or Fedora 24 has gdisk already on the media, and its version of parted and fdisk, also included, all do alignment to 4KiB sectors correctly. Actually, on either Fedora live media version you can do dnf install https://kojipkgs.fedoraproject.org//packages/blivet-gui/2.0.1/1.fc25/noarch/blivet-gui-2.0.1-1.fc25.noarch.rpm Which is the current version, and it will work on F24 for sure and maybe/probably F23 also. And dnf will sort out any additional dependencies needed. It has a similar gparted style UI, but it will do all kinds of wild things: mdadm raid, LVM raid, Btrfs. It'll create the partitions, RAID, LV's, file systems, and it will discover things already on the drive and properly wipe their signatures with a proper tear down before creating the new things. So you don't end up with crusty old stuff coming back to haunt you some other day. -- Chris Murphy -- 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
