Creating and attaching a block volume to the server

After creation of block volume , we have to attach the block volume to the compute instance.

Navigation ->   Compute ->   Instances  ->  Resource(Attached block volume)  ->  Attach Block Volume.

After attaching the block volume , we have to go the server(Putty) , we have to update our new volume in the server.

Run lsblk cpmmand to check the existing volumes in the server.

Go to three dots -> iSCSI commands & information

-> Copy the connect command.

Run these commands in the server.

 After this we can check , one new volume will be created

“pvdisplay /dev/sdb1”

-> Create a Volume Group

“vgcreate vg_u01 /dev/sdb1”

Run “vgdisplay vg_u01” to display the volume group created and to see the Number of Physical Extent.

-> Create a logical volume and map it to our volume group

“lvcreate -l 12799 -n lv_u01 vg_u01”

“ls -l /dev/mapper/vg_u01-lv_u01”

Logical volume is created inside our volume group .

-> Format this logical volume using a file system

“mkfs.ext4 /dev/mapper/vg_u01-lv_u01”

-> Create a Directory and mount the logical volume

“mkdir /u01”

“mount –t ext4  /dev/mapper/vg_u01-lv_u01  /u01”

Now we can see the logical volume is mounted.

-> Mount this volume permanently in /etc/fstab or else after server reboot this volume will be removed.

“/dev/mapper/vg_u01-lv_u01  /u01  ext4  defaults,_netdev,nofail 0 2”

We have to add this line in /etc/fstab and run mount –a command.