科技常识:linux系统下一个冷门的RAID卡ioc0及其监控mpt-status

2021-04-21 10:49:52
导读今天小编跟大家讲解下有关科技常识:linux系统下一个冷门的RAID卡ioc0及其监控mpt-status,相信小伙伴们对这个话题应该也很关注吧,小编也

今天小编跟大家讲解下有关科技常识:linux系统下一个冷门的RAID卡ioc0及其监控mpt-status,相信小伙伴们对这个话题应该也很关注吧,小编也收集到了有关科技常识:linux系统下一个冷门的RAID卡ioc0及其监控mpt-status的相关资料,希望小伙伴会喜欢也能够帮助大家。

新接手了一台Linux服务器,准备检查是否有配置RAID。先查看是否有RAID卡:

复制代码 代码如下:# dmesg|grep -i raidmptsas: ioc0: attaching raid volume, channel 1, id 0device-mapper: dm-raid45: initialized v0.2594lmd: Autodetecting RAID arrays.

很明显是有的,只是无法确定RAID卡的类型是ioc0还是dm-raid45,于是开始百度。后来找到了这样一个工具:mpt-status,而且在下载界面里,有这样几句话:mpt-status: get status of LSI 1030 RAID (mptlinux, fusion, mpt, ioc) controllerThis driver has many names. As best I understand their use:LSI 1030 The make and model of the controller mptlinux The name of the driver distribution. /proc/mpt/version might say, for example, mptlinux-2.05.11.03. Fusion The trade name for the chipset (?). The driver distribution, though called mptlinux, actually lives in drivers/message/fusion. mpt Message Passing Technology; the prefix used for all things that related to the driver. The /proc device is /proc/mptctl, for example. ioc The name of the controller within Linux. For example the first controller is ioc0.大意是说LSI 1030 RAID卡有很多个名字,ioc是其中之一。这刚好与之前dmesg的结果吻合。因此基本上可以确定RAID卡的类型是ioc0,属于LSI的产品,可以用mpt-status来对其进行监控。mpt-status下载地址:http://sven.stormbind.net/mpt-status-rhel/接着下载安装:rpm -ihv mpt-status-1.2.0_RC7-3.i386.rpm建立字符设备:mknod /dev/mptctl c 10 220加载内核模块mptctl:modprobe mptctl查看RAID状态:

复制代码 代码如下:# mpt-status ioc0 vol_id 0 type IM, 2 phy, 465 GB, state OPTIMAL, flags ENABLEDioc0 phy 1 scsi_id 8 ATA WDC WD5002ABYS-1 3B04, 465 GB, state ONLINE, flags NONEioc0 phy 0 scsi_id 1 ATA WDC WD5002ABYS-1 3B04, 465 GB, state ONLINE, flags NONE可以看出,该RAID由两块465G的物理硬盘组成,状态良好。可问题是,RAID级别是多少(0,1,5...)呢?于是接着百度。但这次没有结果。后来在mpt-status的文档(/usr/share/doc/mpt-status-1.2.0_RC7/FAQ )里看到这样一句话:> 1) Could you tell me from example #1, #2 and #3 where can you see the Raid Level of each hard disk ?好激动,这不就是我要问的问题吗?再看看答案:The raid level is not visible, would you like to get this information as well? Or do you want to extract the health state of each disk?尼玛,回答跟没回答一样...接着往下看。终于,在文档的最后,给出来了答案:> IS=?Integrated Striping (RAID 0)> IM=?Integrated Mirroring (RAID 1)即mpt-status输出的type表示RAID级别。如上例中的:ioc0 vol_id 0 type IM, 2 phy, 465 GB, state OPTIMAL, flags ENABLED表示RAID1。最后附上mpt-status的rpm包。mpt-status 下载地址:http://sven.stormbind.net/mpt-status-rhel/

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