_ ディスクのブロックサイズ確認
Linux系全般
dumpe2fs /dev/sda3 |grep "Block size"
# dumpe2fs /dev/sda3
dumpe2fs 1.39 (29-May-2006)
Filesystem volume name:
Last mounted on:
Filesystem UUID: c36594f1-a99c-4586-b9ba-b70a385c303a
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super large_file
Default mount options: (none)
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 256512
Block count: 512071
Reserved block count: 25603
Free blocks: 424680
Free inodes: 251890
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 125
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 16032
Inode blocks per group: 501
Filesystem created: Mon Apr 21 09:21:36 2008
Last mount time: Tue Mar 16 11:21:22 2010
Last write time: Tue Mar 16 11:21:22 2010
Mount count: 6
Maximum mount count: 31
Last checked: Sun Feb 7 16:11:40 2010
Check interval: 15552000 (6 months)
Next check after: Fri Aug 6 16:11:40 2010
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 128
Journal inode: 8
Default directory hash: tea
Directory Hash Seed: 15444bd2-4b0e-472f-9e62-e4f0a9cee5a3
Journal backup: inode blocks
Journal size: 32M