It is possible to add or remove a SCSI device explicitly, or to re-scan an entire SCSI bus without rebooting a running Linux VM guest.
1) Add a New Disk To Vm Guest
- First, you need to add hard disk by visiting vmware hardware settings menu.
Click on VM > Settings
- Alternatively you can press CTRL + D to bring settings dialog box.
- Click on Add+ to add new hardware to guest:
- Select hardware type Hard disk and click on Next
- Select create a new virtual disk and click on Next
- Set virtual disk type to SCSI and click on Next
- Set maximum disk size as per your requirements and click on Next
- Finally, set file location and click on Finish.
2) Rescan the SCSI Bus to Add a SCSI Device Without rebooting the VM
A rescan can be issued by typing the following command:
echo "- - -" > /sys/class/scsi_host/host#/scan
fdisk -l
tail -f /var/log/message
Replace host# with actual value such as host0. You can find scsi_host value using the following command:
# ls /sys/class/scsi_host
Output:
host0
Now type the following to send a rescan request:
echo "- - -" > /sys/class/scsi_host/host0/scan
fdisk -l
tail -f /var/log/message
3) Format a New Disk
You can create partition using fdisk and format it using mkfs.ext3 command:
# fdisk /dev/sdc
# mkfs.ext3 /dev/sdc3
4) Create a Mount Point And Update /etc/fstab
# mkdir /disk3
Open /etc/fstab file, enter:
# vi /etc/fstab
Append as follows:
/dev/sdc3 /disk3 ext3 defaults 1 2
Save and close the file.
