diff --git a/translated/tech/20150126 How to Add a New Hard Disk Without Rebooting on CentOS 7 or RHEL 7.md b/published/20150126 How to Add a New Hard Disk Without Rebooting on CentOS 7 or RHEL 7.md similarity index 81% rename from translated/tech/20150126 How to Add a New Hard Disk Without Rebooting on CentOS 7 or RHEL 7.md rename to published/20150126 How to Add a New Hard Disk Without Rebooting on CentOS 7 or RHEL 7.md index 104f05e0a7..d54877bd36 100644 --- a/translated/tech/20150126 How to Add a New Hard Disk Without Rebooting on CentOS 7 or RHEL 7.md +++ b/published/20150126 How to Add a New Hard Disk Without Rebooting on CentOS 7 or RHEL 7.md @@ -1,17 +1,18 @@ -如何不用重启在CentOS 7/ RHEL 7中添加一块新硬盘 +如何不用重启在CentOS 7/ RHEL 7虚拟机中添加一块新硬盘 ================================================================================ 通常在你在虚拟机中添加一块新硬盘时,你可能会看到新硬盘没有自动加载。这是因为连接到硬盘的SCSI总线需要重新扫描来使得新硬盘可见。这里有一个简单的命令来重新扫描SCSI总线和SCSI设备。下面这几步在CentOS 7 和RHEL 7 中测试过。 1. 在ESXi或者vCenter中添加一块新的20G硬盘: -![](http://www.ehowstuff.com/wp-content/uploads/2015/01/Create-new-LVM-CentOS7-1.png) + ![](http://www.ehowstuff.com/wp-content/uploads/2015/01/Create-new-LVM-CentOS7-1.png) 2. 显示当前磁盘分区: - [root@centos7 ~]# fdisk -l + [root@centos7 ~]# fdisk -l ----------- + ---------- + ``` Disk /dev/sda: 32.2 GB, 32212254720 bytes, 62914560 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes @@ -33,20 +34,22 @@ Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes + ``` 3. 确定主机总线号 - [root@centos7 ~]# ls /sys/class/scsi_host/ - host0 host1 host2 + [root@centos7 ~]# ls /sys/class/scsi_host/ + host0 host1 host2 4. 重新扫描SCSI总线来添加设备 - [root@centos7 ~]# echo "- - -" > /sys/class/scsi_host/host0/scan - [root@centos7 ~]# echo "- - -" > /sys/class/scsi_host/host1/scan - [root@centos7 ~]# echo "- - -" > /sys/class/scsi_host/host2/scan + [root@centos7 ~]# echo "- - -" > /sys/class/scsi_host/host0/scan + [root@centos7 ~]# echo "- - -" > /sys/class/scsi_host/host1/scan + [root@centos7 ~]# echo "- - -" > /sys/class/scsi_host/host2/scan -5. 验证磁盘和分区并确保20GB硬盘已经添加了。在本例中,出现了下面这行 “Disk /dev/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectors” 并且确认新盘添加后没有重启服务器: +5. 验证磁盘和分区并确保20GB硬盘已经添加了。在本例中,出现了下面这行 “`Disk /dev/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectors`” 并且可以确认没有重启服务器就添加了新盘: + ``` [root@centos7 ~]# fdisk -l Disk /dev/sda: 32.2 GB, 32212254720 bytes, 62914560 sectors @@ -76,14 +79,14 @@ Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes - + ``` -------------------------------------------------------------------------------- via: http://www.ehowstuff.com/how-to-add-a-new-hard-disk-without-rebooting-on-centos-7-rhel-7/ 作者:[skytech][a] 译者:[geekpi](https://github.com/geekpi) -校对:[校对者ID](https://github.com/校对者ID) +校对:[wxy](https://github.com/wxy) 本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译,[Linux中国](http://linux.cn/) 荣誉推出