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Oracle有db_block_size,操作系统也有 block size,下面简要介绍AIX:查看AIX操作系统 每个block size 大小:# lsfs -q /u01Name            Nodename   Mount Pt               VFS   Size    Options    Auto Accounting/dev/fslv00     --         /u01                   jfs2  50331648 rw         yes  no   (lv size: 50331648, fs size: 50331648, block size: 4096, sparse files: yes, inline log: no, inline log size: 0, EAformat: v1, Quota: no, DMAPI: no, VIX: no)Windows:C:Documents and SettingsAdministrator>fsutil fsinfo ntfsinfo c:NTFS Volume Serial Number :       0xfae82044e81ffe0fVersion :                         3.1Number Sectors :                  0x0000000004ffffffTotal Clusters :                  0x00000000009fffffFree Clusters  :                  0x00000000003ff408Total Reserved :                  0x0000000000000000Bytes Per Sector  :               512Bytes Per Cluster :               4096Bytes Per FileRecord Segment    : 1024Clusters Per FileRecord Segment : 0Mft Valid Data Length :           0x000000000fac8000Mft Start Lcn  :                  0x00000000000c0000Mft2 Start Lcn :                  0x0000000000000010Mft Zone Start :                  0x00000000000cfac0Mft Zone End   :                  0x0000000000200000Linux:[root@www.linuxidc.com ~]# tune2fs -l /dev/sda1tune2fs 1.39 (29-May-2006)Filesystem volume name:   /Last mounted on:          <not available>Filesystem UUID:          05b4b85c-eb01-4d22-b011-4307b910010bFilesystem magic number:  0xEF53Filesystem revision #:    1 (dynamic)Filesystem features:      has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super large_fileDefault mount options:    user_xattr aclFilesystem state:         cleanErrors behavior:          ContinueFilesystem OS type:       LinuxInode count:              5124480Block count:              5120710Reserved block count:     256035Free blocks:              4312881Free inodes:              5006108First block:              0Block size:               4096Fragment size:            4096Reserved GDT blocks:      1022Blocks per group:         32768Fragments per group:      32768Inodes per group:         32640Inode blocks per group:   1020Filesystem created:       Mon Dec 13 22:20:57 2010Last mount time:          Thu Feb 10 08:39:51 2011Last write time:          Thu Feb 10 08:39:51 2011Mount count:              18Maximum mount count:      -1Last checked:             Mon Dec 13 22:20:57 2010Check interval:           0 (<none>)Reserved blocks uid:      0 (user root)Reserved blocks gid:      0 (group root)First inode:              11Inode size:               128Journal inode:            8First orphan inode:       2872327Default directory hash:   teaDirectory Hash Seed:      3f80d852-e54e-4a21-8142-b3e30299fdd2Journal backup:           inode blocksOracle 用一个表字段更新另一个表字段三种方法Oracle 9i 非归档模式到归档模式设置一例相关资讯      Linux教程 
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