NetApp and Linux: Difference between revisions
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==Links== | ==Links== | ||
* [https://kb.netapp.com/index?page=content&id=3011193 KB ID: 3011193 - What is an unaligned I/O?] | * [https://kb.netapp.com/index?page=content&id=3011193 NetApp KB ID: 3011193 - What is an unaligned I/O?] | ||
Revision as of 12:51, 17 August 2015
Check partitioning
Maybe this works:
# fdisk -l /dev/sda | awk '/^\/dev\//{fieldnum=2;if($fielnum=="*"){fieldnum++}blockalign=$fieldnum/8;if(blockalign!=int(blockalign)){match($0,$fieldnum);printf "%s <<<<<<< Bucket %d\n",substr($0,0,RSTART-2)"_"substr($0,RSTART,RLENGTH)"_"substr($0,RSTART+RLENGTH+1),8*(blockalign-int(blockalign));}else{print $0;}next;}{print;}'
Disk /dev/sda: 17.2 GB, 17179869184 bytes
64 heads, 32 sectors/track, 16384 cylinders, total 33554432 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000d6bea
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 13672447 6835200 83 Linux
/dev/sda2 _13674494_ 33552383 9938945 5 Extended <<<<<<< Bucket 6
/dev/sda5 13674496 25391103 5858304 83 Linux
/dev/sda6 25393152 33552383 4079616 82 Linux swap / Solaris
Partition 2 does not matter because it is just metadata of partitioning. We are aligned!
