Skytap

Tips for Skytap

Tips

Add an extra IP address to an existing interface

Add an extra IP address to an existing interface in Red Hat Enterprise Linux/CentOS 7

Adding a new network-scripts file in /etc/sysconfig/network-scripts/

touch ifcfg-ens160:2

Edit file ifcfg-ens160:2

NAME="ens160:2"
ONBOOT="yes"
BOOTPROTO="static"
IPADDR="10.0.0.2"
NETMASK="255.255.255.0"

Restart

systemctl restart network

Checking

ip a

To extend the logical volume

• VG name is cl
• Space is 60GB

1) Power off the virtual machine.

2) Add/Edit the virtual machine settings and extend the virtual disk size.

3) Power on the virtual machine.

4) Create the new device

a) fdisk /dev/sdb

b) Press n to create a new primary partition and p for primary.

c) Press t to change the system's partition ID. and type 8e to define as Linux LVM.

d) Press w to write the changes

e) Restart the virtual machine.

5) List partition

fdisk -l /dev/sdb

6) Create Phisical Volume

pvcreate /dev/sdb3 

7) List VG on skytap

vgdisplay cl

8) Extend the physical volume:

vgextend cl /dev/sdb3

9) check Free space on VG

vgdisplay cl | grep "Free"

10) extend the Logical Volume

lvextend -L+60G /dev/cl/home

11) expand the ifs filesystem online

xfs_growfs /dev/cl/home

12) verify that the /home filesystem has the new space available:

df -h