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 : 512
Bytes 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 : 0x0000000000200000
Linux:[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: 0
Block 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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