## 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. 

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: 

df -kh 

Example 4-26 show typical output for this 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. 

