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	<title>天道酬勤 &#187; storage</title>
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		<title>Solaris和Hp的磁盘命令规则</title>
		<link>http://www.ochef.net/2009/03/solaris-and-hp-disk-command-rules.html</link>
		<comments>http://www.ochef.net/2009/03/solaris-and-hp-disk-command-rules.html#comments</comments>
		<pubDate>Thu, 05 Mar 2009 06:05:02 +0000</pubDate>
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				<category><![CDATA[Operating System]]></category>
		<category><![CDATA[Storage & Network]]></category>
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		<category><![CDATA[storage]]></category>

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		<description><![CDATA[Solaris下的磁盘一般有3种命名方式： 逻辑设备名 物理设备名 实名 逻辑设备名是来源于物理设备名的一个连接，连接于/devices目录。所有的逻辑设备名都在目录/dev下。逻辑设备名的命名方式就是采用c#t#d#s#，会根据卷管理软件的要求进行更改的。比如:vertias volume manager下为 C：一般 controller number T：代表target number D: 一般代表disk number S: 一般代表slice number 所有在/dev下的设备又分为/dev/dsk和/dev/rdsk两中块设备和字符设备。 物理设备名 物理设备名是系统中唯一用来标识本地物理设备的。设备名在/devices下。物理设备名是由一系列的接点名组成的。用/来进行路径的区分。光纤盘与其他的不太一样是有WWN（world wide name）号来表示。 实名是有kernel为每个设备分配的一个缩写名。 Sdn：代表SCSI硬盘。 Dadn：代表ide硬盘 Ssdn：代表光纤盘 Hp下的磁盘命名方式： cciss是惠普的smart array控制器的设备名，c0指channl 0，第一个SCSI通道，d0指逻辑盘1，d1指逻辑盘2…，p1指第一个分区，p2是第二个分区…。在这种情况下，我们可以看到很多HP的服务器在通过该设备连接硬盘的时候，经常看到的设备是/dev/cciss/c0d0p1，/dev/cciss/c0d0p2，/dev/cciss/c0d0p3等。<table class="wumii-related-items" cellspacing="0" cellpadding="2" border="0" width="100%" style="clear: both;">
    
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			<content:encoded><![CDATA[<p>Solaris下的磁盘一般有3种命名方式：<br />
逻辑设备名<br />
物理设备名<br />
实名</p>
<p>逻辑设备名是来源于物理设备名的一个连接，连接于/devices目录。所有的逻辑设备名都在目录/dev下。逻辑设备名的命名方式就是采用c#t#d#s#，会根据卷管理软件的要求进行更改的。比如:vertias volume manager下为<br />
C：一般 controller number<br />
T：代表target number<br />
D: 一般代表disk number<br />
S: 一般代表slice number<br />
所有在/dev下的设备又分为/dev/dsk和/dev/rdsk两中块设备和字符设备。</p>
<p>物理设备名<br />
物理设备名是系统中唯一用来标识本地物理设备的。设备名在/devices下。物理设备名是由一系列的接点名组成的。用/来进行路径的区分。光纤盘与其他的不太一样是有WWN（world wide name）号来表示。</p>
<p>实名是有kernel为每个设备分配的一个缩写名。<br />
Sdn：代表SCSI硬盘。<br />
Dadn：代表ide硬盘<br />
Ssdn：代表光纤盘</p>
<p>Hp下的磁盘命名方式：<br />
cciss是惠普的smart array控制器的设备名，c0指channl 0，第一个SCSI通道，d0指逻辑盘1，d1指逻辑盘2…，p1指第一个分区，p2是第二个分区…。在这种情况下，我们可以看到很多HP的服务器在通过该设备连接硬盘的时候，经常看到的设备是/dev/cciss/c0d0p1，/dev/cciss/c0d0p2，/dev/cciss/c0d0p3等。</p>
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