vmware增加新硬盘无需重启即可生效的命令脚本

Summer ·
更新时间:2024-09-20
· 647 次阅读

话不多说,直接开始

$ cat /proc/scsi/scsi Attached devices: Host: scsi1 Channel: 00 Id: 00 Lun: 00 Vendor: NECVMWar Model: VMware IDE CDR10 Rev: 1.00 Type: CD-ROM ANSI SCSI revision: 05 Host: scsi2 Channel: 00 Id: 00 Lun: 00 Vendor: VMware Model: Virtual disk Rev: 1.0 Type: Direct-Access ANSI SCSI revision: 02 Host: scsi2 Channel: 00 Id: 01 Lun: 00 Vendor: VMware Model: Virtual disk Rev: 1.0 Type: Direct-Access ANSI SCSI revision: 02 $ echo "scsi add-single-device 2 0 2 0" > /proc/scsi/scsi $ cat /proc/scsi/scsi Attached devices: Host: scsi1 Channel: 00 Id: 00 Lun: 00 Vendor: NECVMWar Model: VMware IDE CDR10 Rev: 1.00 Type: CD-ROM ANSI SCSI revision: 05 Host: scsi2 Channel: 00 Id: 00 Lun: 00 Vendor: VMware Model: Virtual disk Rev: 1.0 Type: Direct-Access ANSI SCSI revision: 02 Host: scsi2 Channel: 00 Id: 01 Lun: 00 Vendor: VMware Model: Virtual disk Rev: 1.0 Type: Direct-Access ANSI SCSI revision: 02 Host: scsi2 Channel: 00 Id: 02 Lun: 00 Vendor: VMware Model: Virtual disk Rev: 1.0 Type: Direct-Access ANSI SCSI revision: 02

通过命令可以看到扫描到了新的磁盘,实现了不重启添加硬盘

$ echo "scsi add-single-device 2 0 2 0" > /proc/scsi/scsi 参数值 w、x、y 、 z,解释如下: w(Host)是主机适配器标识,第一个适配器为零(0) x (Channel)是主机适配器上的 SCSI 通道,第一个通道为零(0) y (ID)是设备的 SCSI 标识 z (Lun)是 LUN 号,第一个 LUN 为零(0) 1. 添加了磁盘后查看,没有刷新出来 [root@node /]# 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: 0x000aa84a Device Boot Start End Blocks Id System /dev/sda1 * 1 2089 16775168 83 Linux /dev/sda2 2089 2089 1024 82 Linux swap / Solaris 2. 查看主机总线号 root@node /]# ls /sys/class/scsi_host/ host0 host1 host2 3.重新扫描SCSI总线来添加设备 [root@node /]# echo "- - -" > /sys/class/scsi_host/host0/scan [root@node /]# echo "- - -" > /sys/class/scsi_host/host1/scan [root@node /]# echo "- - -" > /sys/class/scsi_host/host2/scan

最后 fdisk -l 可以看到添加后的磁盘了

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