Zarovannie partitions na 4k/512b disku

Dusan Zatkovsky msk.conf na gmail.com
Úterý Květen 22 16:32:05 CEST 2012


> cat /sys/block/sda/sda/alignment_offset
>                       ^^^
>   takovy adresar tam opravdu je? :-)
Preklep :-)

>
>   vas zajima hlavne sda1, sda2 apod.
>
>     cat  /sys/block/sda/sda1/alignment_offset

cat /sys/block/sda/sda4/alignment_offset
1024

cat /sys/block/sda/sda5/alignment_offset
0

cat /sys/block/sda/sda6/alignment_offset
0

sda4 je extended, sda5 a 6 su v tej extended. Pokial su sda5 a 6 
skutocne zarovnane, tak mam problem niekde inde, pretoze pri akejkolvek 
vacsej praci s diskom
je system nepouzitelny.

>
>   jinak tez prikaz:
>
>    lsblk --topology
>
root na ubuntu:~# lsblk --topology
NAME ALIGNMENT MIN-IO OPT-IO PHY-SEC LOG-SEC ROTA SCHED RQ-SIZE
sda 0 4096 0 4096 512 1 cfq 128
├─sda1 0 4096 0 4096 512 1 cfq 128
├─sda2 0 4096 0 4096 512 1 cfq 128
├─sda3 0 4096 0 4096 512 1 cfq 128
├─sda4 1024 4096 0 4096 512 1 cfq 128
├─sda5 0 4096 0 4096 512 1 cfq 128
│ ├─vg00-swap (dm-0) 0 4096 0 4096 512 1 128
│ └─vg00-root (dm-1) 0 4096 0 4096 512 1 128
└─sda6 0 4096 0 4096 512 1 cfq 128
sdb 0 512 0 512 512 1 cfq 128
└─sdb1 0 512 0 512 512 1 cfq 128


Diky

--
Dusan



Další informace o konferenci Linux