Linux - Vmware add a new hard disk with no reboot, Linux scan new disk without reboot

Vmware add a new hard disk with no reboot

There will be always need of storage space in server when the data grows, In such situation a physical block device will be added and when the device block is added to the particular host in a cluster then the device has to be rescan. Below are are simple steps to rescan the storage blocks of a virtual machine or a Vmware server.

Basic syntax to scan disk is

 # echo "1" > /sys/class/scsi_device/$host:$channel:$id:$lun/device/rescan 

 # echo 1 > /sys/class/scsi_device/0\:0\:1\:0/device/rescan
 # partprobe
 # dmesg | tail

If parprobe was not supported then try using diskpart

 # diskpart
 # rescan

This will rescan your disk, once rescanning is done then you can resize your volume.

 # pvresize /dev/sdX

 # echo "- - -" > /sys/class/scsi_host/host#/scan
 # fdisk -l
 # tail -f /var/log/message

Simple way to scan all the host is

 # cd /sys/class/scsi_device/

 # for i in $(ls -1); do echo 1 > $i/device/rescan; done

 # partprobe; dmesg

 # pvresize /dev/sdX

The topic on Linux - Vmware add a new hard disk with no reboot is posted by - Guru

Hope you have enjoyed, Linux - Vmware add a new hard disk with no rebootThanks for your time