在linux系統上,可以用命令tune2fs ,測試如下
[root@localhost test10g]# tune2fs -helptune2fs 1.35 (28-Feb-2004)tune2fs: invalid option -- hUsage: tune2fs [-c max-mounts-count] [-e errors-behavior] [-g group] [-i interval[d|m|w]] [-j] [-J journal-options] [-l] [-s sparse-flag] [-m reserved-blocks-percent] [-o [^]mount-options[,...]] [-r reserved-blocks-count] [-u user] [-C mount-count] [-L volume-label] [-M last-mounted-dir] [-O [^]feature[,...]] [-T last-check-time] [-U UUID] device[root@localhost test10g]# dfFilesystem 1K-blocks Used Available Use% Mounted on/dev/sda2 8776068 7576504 753764 91% //dev/sda1 497829 16303 455824 4% /bootnone 517300 0 517300 0% /dev/shm/dev/sda5 1035660 96452 886600 10% /tmp[root@localhost test10g]# tune2fs -l /dev/sda1|grep BlockBlock count: 514048Block size: 1024 Blocks per group: 8192[root@localhost test10g]# tune2fs -l /dev/sda2|grep BlockBlock count: 2229018Block size: 4096Blocks per group: 32768
上面Block size即為塊大小。
在WINDOWS系統上,可以用命令fsutil來查看,測試如下:
C:/Documents and Settings/ct2>fsutil --help
--help 是無效參數。
---- 支持的命令 ----
behavior 控制文件系統行為dirty 管理卷的被損壞的位數file 文件特定命令fsinfo 文件系統信息hardlink 硬鏈接管理objectid 對象 ID 管理quota 配額管理reparsepoint 重分析點管理sparse 稀疏文件控制usn USN 管理volume 卷管理C:/Documents and Settings/ct2>fsutil fsinfo ntfsinfo c:NTFS 卷序列號 : 0x72ccb5f2ccb5b129版本 : 3.1區數量 : 0x0000000008ff8235簇總數 : 0x00000000011ff046可用簇 : 0x0000000000547b73保留總數 : 0x0000000000000050每個扇區字節數 : 512每個簇字節數 : 4096每個 FileRecord 段的字節數 : 1024每個 FileRecord 段的簇數 : 0Mft 有效數據長度 : 0x0000000009cac000Mft 起始 Lcn : 0x00000000000c4df6Mft2 起始 Lcn : 0x00000000008ff823Mft 區域起始 : 0x0000000001067920Mft 區域結尾 : 0x000000000108ce60
上面簇字節數既為塊大小。
注:第二擴展文件系統(second Extended Filesystem,Ext2)。 Ext3(third Extended Filesystem)
man fs ext2 is the high performance disk filesystem used by Linux for fixed disks as well as removable media. The second extended filesystem was designed as an extension of the extended file system (ext). ext2 offers the best performance (in terms of speed and CPU usage) of the filesystems supported under Linux. ext3 is a journaling version of the ext2 filesystem. It is easy to switch back and forth between ext2 and ext3. ext3 is a journaling version of the ext2 filesystem. ext3 offers the most complete set of journaling options available among journaling filesystems.
以上就是小編為大家帶來的查看linux文件系統塊大小的實現方法全部內容了,希望大家多多支持VEVB武林網~
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