4.12.2 Checking default disk space allocation When we created the zCX instance, we used the default settings, which created five VSAM  linear data sets. To check what disk space is currently available to the zCX instance, log on to the zCX  instance and issue the command  lsblk . Example 4-25 shows the output of this command our  zCX instance. Example 4-25 Output from lsblk command NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT vda 252:0 0 3.9G 0 disk |-vda1 252:1 512M 0 part ‘-vda2 252:2 0 3.4G 0 part vdc 252:32 0 2G 0 disk ‘-vdc1 252:33 0 2G 0 part vdd 252:48 0 1000.6M 0 disk vde 252:64 0 19.5G 0 disk ‘-vde1 252:65 0 19.5G 0 part Each of the main entries in the NAME column corresponds to one of the VSAM linear data  sets. There are only four entries, because the VSAM linear data set that contains the config is  dropped shortly after startup. The entry for  vde  is the large 20 GB VSAM linear data set that was allocated when the zCX  instance was created. Note:  The values in the NAME column can change when the zCX instance is restarted. To see details, you can also issue the following command:  Example 4-26 show typical output for this command. df -kh Example 4-26 Output of the df-kh command Filesystem Size Used Avail Use% Mounted on overlay 20G 385M 18G 3% / tmpfs 64M 0 64M 0% /dev tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup /dev/mapper/data_VG_15403-data 20G 385M 18G 3% /home shm 64M 0 64M 0% /dev/shm tmpfs 1.9G 336K 1.9G 1% /run/docker.sock devtmpfs 1.8G 0 1.8G 0% /dev/tty tmpfs 1.9G 0 1.9G 0% /proc/scsi tmpfs 1.9G 0 1.9G 0% /sys/firmware In Example 4-26, the entry for  /dev/mapper/data_VG_15403-data  corresponds to the 20 GB  VSAM linear data set. 4.12.3 Create add data disks zCX workflow To create the  add data disks  zCX workflow, in z/OSMF select the option to create a new  workflow as described in 4.8.2, “Select  the zCX provisioning workflow” on page 63. Chapter 4. Provisioning and managing your first z/OS Container  85