Virtual SCSI

From Linux on Power wiki

Steps

• HMC: Assign vSCSI server adapter to VIO server, remember the slot number
• HMC: Assign vSCSI client adapter to client LPAR, link the slot with the VIO server
• VIO: Create a device (volume, disk partition or loopback file) on the VIO server
• VIO: Configure vSCSI Server on the VIO Server to point to the device created

Virtual SCSI commands (using Linux VIO)

• Load vscsi server module

modprobe –v ibmvscsis

• Create a block device you are going to share, for example disk partition, logical volume, or loopback mounted file

• Now link this device to the virtual disk (in this case slot number 5):

cd /sys/devices/vio/30000005/bus0/target0
echo /dev/sdc1 > device
echo b > type
echo 0 > ro
echo 1 > active

• After reboot the disk mapping is gone. Use example scripts: SUSE_VIO_Scripts

See also: Debian vio and SUSE_Vio