标签:返回值 ppi swa pre oracle lob command numbers table
(1)bdf命令的效果
lijiaman$[/home/oracle]bdf Filesystem kbytes used avail %used Mounted on /dev/vg00/lvol3 10485760 225552 10180096 2% / /dev/vg00/lvol1 4194304 390200 3774448 9% /stand /dev/vg00/lvol8 31457280 2128008 29102256 7% /var /dev/vg00/lvol7 10485760 3205264 7223672 31% /usr /dev/vg00/lvol4 10485760 6576408 3879176 63% /tmp /dev/vg00/lvol11 41943040 23159923 17611782 57% /oracle /dev/vg00/lvol6 12582912 7165312 5376864 57% /opt /dev/vg00/lvol5 20971520 75992 20732400 0% /home /dev/vg00/lvol10 41943040 14004604 26192355 35% /grid
查看bdf的用法:
fabdb1$[/home/oracle]man bdf
 bdf(1M)                                                             bdf(1M)                             ##  bdf  ##
 NAME
      bdf - report number of free disk blocks (Berkeley version)                                  #报告磁盘的剩余空间块      
 SYNOPSIS                                                                                         #简介
      /usr/bin/bdf [-b] [-i] [-l] [-s] [-t type | [filesystem|file] ... ]                              bdf [-b] [-i] [-l] [-s] [-t type | [filesystem | file]… ]
 DESCRIPTION                                                                                      #描述                                                                                            
      The bdf command displays the amount of free disk space available                                 bdf命令展示了在指定的文件系统中可以使用的磁盘空间大小,如果 
      either on the specified filesystem (/dev/dsk/c0d0s0, for example) or                             没有文件系统被指定,则打印所有正常安装的文件系统的可以利用的
      on the file system in which the specified file (such as $HOME), is                               空间,打印的单位是kilobytes(千比特,kb)
      contained.  If no file system is specified, the free space on all of                            注意:1Gb=1000 000kb
      the normally mounted file systems is printed.  The reported numbers
      are in kilobytes.
    Options                                                                                       #选项
      The bdf command recognizes the following options:                                                bdf命令有以下选项:
           -b             Display information regarding file system                                     -b    展示有关文件系统交换信息
                          swapping.
           -i             Report the number of used and free inodes.                                   -i    展示可利用的空闲空间的大小 
           -l             Display information for local file systems only                               -l    仅仅展示本地文件系统的信息
                          (for example, HFS and CDFS file systems).
           -s             Do not sync the file system data on the disk                                 -s    在报告使用前不同步文件系统的数据,注意得到的数据可能
                          before reporting the usage.  Note that the data                                     不是最新的
                          reported by bdf may not be up to date.
           -t type        Report on the file systems of a given type (for
                          example, nfs or hfs).
 RETURN VALUE                                                                                      #返回值
      The bdf command returns 0 on success (able to get status on all file                              成功返回0,失败返回1
      systems), or returns 1 on failure (unable to get status on one or more
      file systems).
 WARNINGS                                                                                          #警告
      If file system names are too long, the output for a given entry is                                如果文件系统名字太长,将分成2行输出展示。
      displayed on two lines.                                                                           bdf命令不会计算磁盘保留用于交换的空间…
                                       
      The bdf command does not account for any disk space reserved for swap                             小结:bdf命令与其它查看空间的命令在计算空间的方法上有所区别,
      space, or used for the HFS boot block (8 KB, 1 per file system), HFS                                    命令得到的结果也会有一些出入。
      superblocks (8 KB each, 1 per disk cylinder), HFS cylinder group
      blocks (1 KB - 8 KB each, 1 per cylinder group), and inodes (currently
      128 bytes reserved for each inode).  Non-HFS file systems may have
      other items not accounted for by this command.
 AUTHOR
      bdf was developed by the University of California, Berkeley.
 Hewlett-Packard Company            - 1 -       HP-UX 11i Version 3 Feb 2007
 bdf(1M)                                                             bdf(1M)
 FILES
      /etc/fstab          Static information about the file systems.
      /etc/mnttab         Mounted file system table.
      /dev/dsk/*          File system devices.
 SEE ALSO
      df(1M), fstab(4), mnttab(4).
标签:返回值 ppi swa pre oracle lob command numbers table
原文地址:http://www.cnblogs.com/lijiaman/p/6559831.html