{"id":358,"date":"2011-02-01T23:28:58","date_gmt":"2011-02-01T21:28:58","guid":{"rendered":"http:\/\/blog.openmediavault.org\/?p=358"},"modified":"2018-05-25T11:01:41","modified_gmt":"2018-05-25T09:01:41","slug":"4k-alignment","status":"publish","type":"post","link":"https:\/\/www.openmediavault.org\/?p=358","title":{"rendered":"4k alignment"},"content":{"rendered":"

Currently i’m a little bit confused. I’m trying to take care about the correct 4k alignment to get best performance for new HDDs with size > 2TiB. I’m using the following command till now, but i know it is not the optimal setting, but how to tell parted to auto-align the partition?<\/p>\n

parted -s — ${device} mklabel gpt mkpart primary 0 -1<\/p>\n

Using<\/p>\n

parted -s -a optimal — ${device} mklabel gpt mkpart primary 0s -1s<\/p>\n

does not fix the problem. Everytime the partition layout looks like<\/p>\n

# fdisk -lu \/dev\/sdd<\/div>\n
WARNING: GPT (GUID Partition Table) detected on ‘\/dev\/sdd’! The util fdisk doesn’t support GPT. Use GNU Parted.<\/div>\n
Disk \/dev\/sdd: 106 MB, 106954752 bytes<\/div>\n
255 heads, 63 sectors\/track, 13 cylinders, total 208896 sectors<\/div>\n
Units = sectors of 1 * 512 = 512 bytes<\/div>\n
Sector size (logical\/physical): 512 bytes \/ 512 bytes<\/div>\n
I\/O size (minimum\/optimal): 512 bytes \/ 512 bytes<\/div>\n
Disk identifier: 0x00000000<\/div>\n
Device Boot \u00a0 \u00a0 \u00a0Start \u00a0 \u00a0 \u00a0 \u00a0 End \u00a0 \u00a0 \u00a0Blocks \u00a0 Id \u00a0System<\/div>\n
\/dev\/sdd1 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1 \u00a0 \u00a0 \u00a0208895 \u00a0 \u00a0 \u00a0104447+ \u00a0ee \u00a0GPT<\/div>\n
Partition 1 has different physical\/logical beginnings (non-Linux?):<\/div>\n
phys=(0, 0, 1) logical=(0, 0, 2)<\/div>\n
Partition 1 has different physical\/logical endings:<\/div>\n
phys=(1023, 254, 63) logical=(13, 0, 51)<\/div>\n

which is not optimal. Any tipps?<\/p>\n","protected":false},"excerpt":{"rendered":"

Currently i’m a little bit confused. I’m trying to take care about the correct 4k alignment to get best performance for new HDDs with size > 2TiB. I’m using the following command till now, but i know it is not the optimal setting, but how to tell parted to auto-align the partition? parted -s — … Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-358","post","type-post","status-publish","format-standard","hentry","category-misc"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t