**1.添加一块数据盘进行验证脚本/dev/sde** **开机添加数据盘未识别也可以通过启动服务器来识别硬盘** ```bash 开机添加数据盘未识别解决方法 1.优先执行此命令进行扫盘操作，不行就执行方案2 [root@localhost ~]# rescan-scsi-bus.sh 2.通过find查找scan所在位置 [root@localhost ~]# find / -name scan /sys/devices/pci0000:00/0000:00:10.0/host2/scsi_host/host2/scan /sys/devices/pci0000:00/0000:00:07.1/ata1/host0/scsi_host/host0/scan /sys/devices/pci0000:00/0000:00:07.1/ata2/host1/scsi_host/host1/scan /sys/module/scsi_mod/parameters/scan /usr/share/libquvi-scripts/0.9.20131130/scan 通过scan命令扫盘 [root@localhost ~]# echo '- - -' > /sys/devices/pci0000:00/0000:00:10.0/host2/scsi_host/host2/scan [root@localhost ~]# echo '- - -' > /sys/devices/pci0000:00/0000:00:07.1/ata1/host0/scsi_host/host0/scan [root@localhost ~]# echo '- - -' > /sys/devices/pci0000:00/0000:00:07.1/ata2/host1/scsi_host/host1/scan 发现已经识别sdd数据盘 [root@localhost ~]# lsblk /dev/sde NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sde 8:48 0 10G 0 disk ``` **2.脚本内容如下** ```bash [root@localhost ~]# cat gz.sh #!/bin/bash # 执行脚本需要输入两个位置变量$1,$2 # $0意思回显当前的脚本名 # $#已加载的位置变量的个数 # -b判断文件为块特殊文件 # -d判断文件为目录 # n变量去获取fstab里面是否存在挂载目录0表示无 # uuid1去过滤出UUID # 格式化成其他格式只需将ext4改成ext3或xfs echo "Useage $0 盘符 挂载点, 如： $0 /dev/xvdb /data" if [ $# -ne 2 ];then exit fi if [ ! -b $1 ];then echo "你提供的盘符不正确，请检查后再操作" exit 1 fi mkfs -t ext4 $1 if [ ! -d $2 ];then mkdir -p $2 fi n=`egrep " $2 " /etc/fstab|wc -l` uuid1=`blkid $1 |tr -s " " | awk -F":" '{print $2}' | awk -F" " '{print $1}' ` if [ $n -eq 0 ];then echo "$uuid1 $2 ext4 defaults 0 0" >> /etc/fstab mount -a else mount $1 $2 echo "配置文件/etc/fstab中已经存在挂载点$2,请检查一下." fi ``` **3.执行脚本成功** ```bash [root@localhost ~]# sh gz.sh /dev/sde /u03 Useage gz.sh 盘符 挂载点, 如： gz.sh /dev/xvdb /data mke2fs 1.45.6 (20-Mar-2020) 创建含有 2621440 个块（每块 4k）和 655360 个inode的文件系统 文件系统UUID：5639bea7-b938-4f78-ab8c-9949958119bd 超级块的备份存储于下列块： 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632 正在分配组表： 完成 正在写入inode表： 完成 创建日志（16384 个块）完成 写入超级块和文件系统账户统计信息： 已完成 [root@localhost ~]# cat /etc/fstab # # /etc/fstab # Created by anaconda on Sun Jan 31 21:48:18 2021 # # Accessible filesystems, by reference, are maintained under '/dev/disk/'. # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info. # # After editing this file, run 'systemctl daemon-reload' to update systemd # units generated from this file. # /dev/mapper/cs-root / xfs defaults 0 0 UUID=53a56729-2d9e-451f-b794-450c1f0868db /boot xfs defaults 0 0 /dev/mapper/cs-swap none swap defaults 0 0 UUID="5639bea7-b938-4f78-ab8c-9949958119bd" /u03 ext4 defaults 0 0 ```