管理ASM磁盘组（6）
<DIV><P><STRONG>7. 使用asmcmd命令</STRONG></P>
<P>asmcmd实用程序是Oracle 10g版本2的新增特性，它是一个命令行实用工具，提供了一种简单的方法，可以使用类似于Linux外壳命令(例如ls和mkdir)的命令集，浏览和维护ASM磁盘组中的对象。ASM实例所维护对象的分层性质适合于采用类似Linux文件系统中浏览和维护文件所使用的命令集。</P>
<P>在使用asmcmd之前，必须确保将环境变量ORACLE_BASE、ORACLE_HOME和ORACLE_SID设置为指向ASM实例。对于本章所使用的ASM实例，这些环境变量的设置如下所示：</P>
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<TD class=code bgColor=#e6e6e6>ORACLE_BASE=/u01/app/oracle<BR>ORACLE_HOME=/u01/app/oracle/product/11.1.0/db_1<BR>ORACLE_SID=+ASM</TD></TR></TBODY></TABLE>
<P>此外，必须以dba组中的用户登录到操作系统，因为asmcmd实用程序使用SYSDBA权限连接到数据库。操作系统用户通常是oracle，但也可以是dba组中的任何其他用户。</P>
<P>可以采用asmcmd command格式，一次使用一条asmcmd命令，或者也可以在Linux外壳提示符下输入asmcmd来交互式地启动asmcmd。为获得可用命令列表，可以在ASMCMD>提示符下输入help，这会得到更多的详细信息。表4-7列出了asmcmd命令及其简单说明，注意有些asmcmd命令只在Oracle Database 11g中可用。</P>
<P>表4-7 asmcmd命令汇总</P>
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<P style="TEXT-INDENT: 4.75pt; MARGIN: 0cm 0cm 0pt; mso-char-indent-count: .53" class=a><FONT size=2><SPAN lang=EN-US><FONT face=Arial>asmcmd</FONT></SPAN><SPAN style="FONT-FAMILY: 黑体; mso-ascii-font-family: Arial">命令</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD>
<TD style="BORDER-BOTTOM: windowtext 1pt solid; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; BORDER-TOP: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-top-alt: solid windowtext 1.0pt; mso-border-bottom-alt: solid windowtext .5pt" vAlign=top width=132>
<P style="TEXT-INDENT: 4.75pt; MARGIN: 0cm 0cm 0pt; mso-char-indent-count: .53" class=a><FONT size=2><SPAN style="FONT-FAMILY: 黑体; mso-ascii-font-family: Arial">是否只在</SPAN><SPAN lang=EN-US><FONT face=Arial>11g</FONT></SPAN><SPAN style="FONT-FAMILY: 黑体; mso-ascii-font-family: Arial">中可用</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD>
<TD style="BORDER-BOTTOM: windowtext 1pt solid; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; BORDER-TOP: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-top-alt: solid windowtext 1.0pt; mso-border-bottom-alt: solid windowtext .5pt" vAlign=top width=329>
<P style="TEXT-INDENT: 5.05pt; MARGIN: 0cm 0cm 0pt; mso-char-indent-count: .56" class=a><FONT size=2><SPAN style="FONT-FAMILY: 黑体; mso-ascii-font-family: Arial">说</SPAN><SPAN lang=EN-US><SPAN style="mso-spacerun: yes"><FONT face=Arial> </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 黑体; mso-ascii-font-family: Arial">明</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
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<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 79.8pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=106>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>cd</FONT></SPAN></P></TD>
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<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2></FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">改变目录到指定目录</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
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<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 79.8pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=106>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>cp</FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=132>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">是</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在</SPAN><SPAN lang=EN-US>ASM</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">磁盘组之间复制文件，既可以在相同实例中复制，也可以在远程实例中复制</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
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<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>du</FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=132>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2></FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">循环显示当前目录和所有子目录的总体磁盘利用率</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
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<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>exit</FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=132>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2></FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">终止</SPAN><SPAN lang=EN-US>asmcmd</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，并返回到操作系统外壳提示符</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
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<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 79.8pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=106>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>find</FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=132>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2></FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">从指定目录开始查找名称的所有匹配</SPAN><SPAN lang=EN-US>(</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">也可以使用通配符</SPAN><SPAN lang=EN-US>)</SPAN></FONT></P></TD></TR>
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<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>help</FONT></SPAN></P></TD>
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<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2></FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">列出</SPAN><SPAN lang=EN-US>asmcmd</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">命令</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
<TR style="mso-yfti-irow: 7">
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 79.8pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=106>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>ls</FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=132>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2></FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">列出当前目录的内容</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
<TR style="mso-yfti-irow: 8">
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 79.8pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=106>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>lsct</FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=132>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2></FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">列出当前</SPAN><SPAN lang=EN-US>ASM</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">客户数据库的有关信息</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
<TR style="mso-yfti-irow: 9">
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 79.8pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=106>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>lsdg</FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=132>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2></FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">列出所有磁盘组及其属性</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
<TR style="mso-yfti-irow: 10">
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 79.8pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=106>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>lsdsk</FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=132>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">是</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">列出此</SPAN><SPAN lang=EN-US>ASM</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">实例可见的所有磁盘</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
<TR style="mso-yfti-irow: 11">
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 79.8pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=106>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>md_backup</FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=132>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">是</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">为指定磁盘组创建元数据备份脚本</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
<TR style="mso-yfti-irow: 12">
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 79.8pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=106>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>md_restore</FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=132>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">是</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">从备份恢复磁盘组</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
<TR style="mso-yfti-irow: 13">
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 79.8pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=106>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>mkalias</FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=132>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2></FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">为系统生成的</SPAN><SPAN lang=EN-US>ASM</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">文件名创建一个别名</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
<TR style="mso-yfti-irow: 14">
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 79.8pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=106>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>mkdir</FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=132>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2></FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">创建一个</SPAN><SPAN lang=EN-US>ASM</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">目录</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
<TR style="mso-yfti-irow: 15">
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 79.8pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=106>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>pwd</FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=132>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2></FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">显示当前的</SPAN><SPAN lang=EN-US>ASM</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">目录</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
<TR style="mso-yfti-irow: 16">
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 79.8pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=106>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>remap</FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=132>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">是</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">修理磁盘上遭到破坏或损坏的一系列物理块</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
<TR style="mso-yfti-irow: 17">
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 79.8pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=106>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>rm</FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=132>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2></FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">删除</SPAN><SPAN lang=EN-US>ASM</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">文件或目录</SPAN><SPAN lang=EN-US></SPAN></FONT></P></TD></TR>
<TR style="mso-yfti-irow: 18; mso-yfti-lastrow: yes">
<TD style="BORDER-BOTTOM: windowtext 1pt solid; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 79.8pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm; mso-border-bottom-alt: solid windowtext .5pt" vAlign=top width=106>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2>rmalias</FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM: windowtext 1pt solid; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 99pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm; mso-border-bottom-alt: solid windowtext .5pt" vAlign=top width=132>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><SPAN lang=EN-US><FONT size=2></FONT></SPAN></P></TD>
<TD style="BORDER-BOTTOM: windowtext 1pt solid; PADDING-BOTTOM: 0cm; BACKGROUND-COLOR: transparent; BORDER-TOP-COLOR: #ece9d8; PADDING-LEFT: 5.4pt; WIDTH: 246.9pt; PADDING-RIGHT: 5.4pt; BORDER-RIGHT-COLOR: #ece9d8; BORDER-LEFT-COLOR: #ece9d8; PADDING-TOP: 0cm; mso-border-bottom-alt: solid windowtext .5pt" vAlign=top width=329>
<P style="MARGIN: 0cm 0cm 0pt 5.25pt" class=a0><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">删除一个</SPAN><SPAN lang=EN-US>ASM</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">别名，但不删除此别名的目标</SPAN></FONT><SPAN lang=EN-US></SPAN></P></TD></TR></TBODY></TABLE></DIV>
<P>当启动asmcmd命令时，从ASM实例的文件系统的根节点开始。与Linux文件系统不同，根节点不是由前导正斜杠(/)来指明，而是由加号(+)来指明，但以下各级目录则使用正斜杠。在此示例中，启动asmcmd命令，并查询现有的磁盘组以及所有磁盘组中使用的总磁盘空间：</P>
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<TD class=code bgColor=#e6e6e6>$ asmcmd<BR>ASMCMD> ls -l<BR>State Type RebalUnbalName<BR>MOUNTEDNORMALN N DATA/<BR>MOUNTEDHIGH N N DATA2/<BR>MOUNTEDNORMALN N RECOV/<BR>ASMCMD> du<BR>Used_MB Mirror_used_MB<BR>2143 4399<BR>ASMCMD> pwd<BR>+<BR>ASMCMD></TD></TR></TBODY></TABLE>
<P>与Linux外壳的ls命令一样，如果想要得到此命令所检索出来的对象的详细信息，可以在ls命令后追加-l参数。ls命令显示了本章所用的ASM实例中的3个磁盘组+DATA、+DATA2和+RECOV。</P>
<P>另外需要注意的是，du命令只显示已用的磁盘空间以及跨镜像磁盘组所用的总磁盘空间。想要获得每个磁盘组中的空闲空间量，则需要使用lsdg命令。</P>
<P>此示例查找文件名中包含字符串user的所有文件：</P>
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<TD class=code bgColor=#e6e6e6>ASMCMD> pwd<BR>+<BR>ASMCMD> find . user*<BR>+DATA/DW/DATAFILE/USERS.259.627432977<BR>+DATA/DW/DATAFILE/USERS2.267.627782171<BR>+DATA/purch/users.dbf<BR>+DATA2/DW/DATAFILE/USERS3.256.627786775<BR>ASMCMD> ls -l +DATA/purch/users.dbf<BR>Type RedundStripedTime SysName<BR>N users.dbf =><BR>+DATA/DW/DATAFILE/USERS.259.627432977<BR>ASMCMD></TD></TR></TBODY></TABLE>
<P>注意包含+DATA/purch/users.dbf的这一行：find命令查找所有ASM对象。在此例中，它查找一个别名以及与此模式相匹配的数据文件。</P>
<P>最后可以对外部文件系统甚至其他ASM实例进行文件备份。在此示例中，使用cp命令将数据库的SPFILE备份到主机文件系统的/tmp目录中：</P>
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<TD class=code bgColor=#e6e6e6>ASMCMD> pwd<BR>+data/DW<BR>ASMCMD> ls<BR>CONTROLFILE/<BR>DATAFILE/<BR>ONLINELOG/<BR>PARAMETERFILE/<BR>TEMPFILE/<BR>spfiledw.ora<BR>ASMCMD> cp spfiledw.ora /tmp/BACKUPspfiledw.ora<BR>source +data/DW/spfiledw.ora<BR>target /tmp/BACKUPspfiledw.ora<BR>copying file(s)...<BR>file, /tmp/BACKUPspfiledw.ora, copy committed.<BR>ASMCMD> exit<BR>$ ls -l /tmp/BACKUP*<BR>-rw-r-----1 oracle oinstall 2560 Jul 13 09:47 /tmp/BACKUPspfiledw.ora<BR>$</TD></TR></TBODY></TABLE>
<P>此示例也展示了数据库dw的所有数据库文件是如何存储在ASM文件系统中的。看起来这些数据库文件好像存储在传统的主机文件系统中，但实际上是由ASM进行管理的，其所提供的内置性能和冗余特性(为用于Oracle Database 11g已进行了优化)使DBA可以更轻松地管理数据文件。</P></DIV> 谢谢分享，我是学习和获得积分的。呵呵 不错的资料，可以学习。 不错的资料，可以学习。 不错 谢谢分享我来补充点命令：lsof检查磁盘组的磁盘文件是否被数据库访问
ASMCMD> cd +
ASMCMD> ls -l
State Type RebalName
MOUNTEDEXTERNN DG_TEST01/
ASMCMD> umount dg_test01 #卸载dg_test01
关闭数据库后，执行如下重命名DG名
ASMCMD>renamedg phase=both dgname=test01 newdgname=data01 verbose=true#重命名dg名称
ASMCMD>mount data01 #挂载DG
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