Create SDB on KVM

Log in to the KVM as root.

Check partitions and disk space.

Run lsblk command.

Note:

In case that SDA has no free space to add a new device, it is recommended re-install KVM as detailed in Install KVM.

sda = 1TG

sda2 = 850.3G

home = 800G

The above values depend on environment where IDIH is installed. Customer's machine might have greater or lesser memory, adjust these accordingly.

Create SDB.

Run fdisk and enter options as shown bellow:

[root@mxtolm01dra01s05kvm03 ~]# fdisk /dev/sda
Welcome to fdisk (util-linux 2.23.2).

Changes will remain in memory only, until you decide to write them.

Be careful before using the write command.

Command (m for help): n
Partition type:
   p   primary (2 primary, 0 extended, 2 free)
   e   extended
Select (default p): p
Partition number (3,4, default 3): 3
First sector (1785249792-2341795839, default 1785249792): (press enter)
Using default value 1785249792
Last sector, +sectors or +size{K,M,G} (1785249792-2341795839, default 2341795839): +100G
Partition 3 of type Linux and of size 100 GiB is set

Verify SDB was created. Then, save and reboot.

Command (m for help): p

Disk /dev/sda: 1199.0 GB, 1198999470080 bytes, 2341795840 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000d0c0e
   Device Boot     Start      End         Blocks     Id    System
   /dev/sda1*      2048       2099199     1048576    83    Linux
   /dev/sda2       2099200    1785249791  891575296  8e    Linux LVM
   /dev/sdb        1785249792 1994964991  104857600  83    Linux

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.

WARNING: Re-reading the partition table failed with error 16: Device or resource
busy.
The kernel still uses the old table. The new table will be used at the next reboot
or after you run partprobe(8) or kpartx(8) Syncing disks.

[root@mxtolm01dra01s05kvm03 ~]# partprobe

5.10.2 Create SDB on KVM