On Mon, Mar 22, 2010 at 4:39 PM, Peter Kieser <peter@xxxxxxxxx> wrote: > Hello, > > I have a 6-drive RAID6 of WD15EADS (512-byte sector) drives. One of the > drives is failing, and I have been forced to buy a WD15EARS (4096-byte > sector) drive to replace the failing drive, and it has the new "advanced > format" technology. > > Do I need to set the "XP" jumper on pins 7-8 to play nicely with the other > 512-byte sector drives in my array, or will mdraid be okay with the > 4096-byte sector drive? Will there be a performance penalty adding the drive > to my array? Did you create your RAID on the device or on a partition? If its on the entire device then you should be fine, tho this might depend on which metadata format you are using & where its located on the disc (not sure how the metadata effects data alignment). If you used a standard partitioning tool its likely your partitions start on sector 63. This can be confirmed via an fdisk -l on your other drives. If that's the case then you'll probably want to use the offest jumper. How the drive will behave with the others I have no idea. If after you add the drive and your write speeds drop dramatically then something is misaligned. Wil -- 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
