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  • Linux服务器不关机新增硬盘的方法

    在开机状态下,插入磁盘之后,执行如下命令:

     ls /sys/class/scsi_host/
    host0 host1 host2

    echo "- - -" > /sys/class/scsi_host/host0/scan

    echo "- - -" > /sys/class/scsi_host/host1/scan

    echo "- - -" > /sys/class/scsi_host/host2/scan

    查看步骤1的命令是否生效,可以在/var/log/messages中进行验证
    执行fdisk -l命令看是否能看到新增的磁盘,如果看不到,可以把上面的host0换成host1或者host2等再试一次

    fdisk -l

    Disk /dev/sda: 17.2 GB, 17179869184 bytes
    255 heads, 63 sectors/track, 2088 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x000a3a1a

    Device Boot Start End Blocks Id System
    /dev/sda1 * 1 64 512000 83 Linux
    Partition 1 does not end on cylinder boundary.
    /dev/sda2 64 325 2097152 82 Linux swap / Solaris
    Partition 2 does not end on cylinder boundary.
    /dev/sda3 325 2089 14167040 83 Linux

    Disk /dev/sdb: 1073 MB, 1073741824 bytes
    255 heads, 63 sectors/track, 130 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00000000

    发现已经看到sdb了

    fdisk /dev/sdb

    mkfs.ext4 /dev/sdb1

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  • 原文地址:https://www.cnblogs.com/chillax1314/p/9962053.html
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