On 22/09/2010 15:38, Jon Hardcastle wrote: [...]
Thanks for your help. I have been doing some background reading and am concinving myself to leave the boundaries as they are as it appears there is performance gains to be had? Assuming this is true as long as the parition size is LARGER than the other 1TB paritions I should be ok, right? Device Boot Start End Blocks /dev/sda1 63 1953520064 976760001 /dev/sdc1 2048 1953525167 976761560 If i subtract Start from End sda = 1953520064 - 63 = 1953520001 sdc = 1953525167 - 2048 = 1953523119 (3118 larger than sda) as long as sdc is larger which it is by 3118 I should be ok right? I am even thinking about individually removeing my drives from the array and letting fdisk use its new calculations for the existing drives. I could do with better performance!
Don't do that. There is no performance benefit from aligning your partitions. There would be a performance benefit to making LVM align itself correctly over md RAID stripes, and the filesystem over LVM or md RAID, but there is no performance benefit from aligning md RAID over partitions, *unless* you have 4K sector drives or SSD.
Honestly you are better off duplicating your original partition table onto your new drive so all your partitions are the same, mostly so there can't be any more confusion later on.
Cheers, John. -- 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
