When you want to create a new HFS or zFS file system for the installation, start by making an empty tectia directory under /opt:

> cd /opt
> mkdir tectia

Ensure that the /opt/tectia directory is writable and that it is owned by the SSHD2 user:

> chmod 755 /opt/tectia
> chown SSHD2:0 /opt/tectia

Next, create the file system. You can use the CREAHFS example from SAMPLIB (shown below). The sample file is for HFS, but zFS can also be used.

CREAHFS:

//CREAHFS EXEC PGM=IEFBR14
//*
//* Allocate a dataset for a USS file system. The space allocated, 250
//* cylinders, corresponds to about 200 MB on a 3390 device.
//*
//HFS      DD  DSN=SSZ.SRVR62.HFS,
//             UNIT=SYSALLDA,
//             SPACE=(CYL,(250,1,5)),
//             DSNTYPE=HFS,
//             DCB=(DSORG=PO),
//             DISP=(NEW,CATLG,DELETE)

To mount the file system on /opt/tectia use the MOUNHFS example from SAMPLIB as shown below.

MOUNHFS:

//* REPLY nn,dddd ON THE MACHINE CONSOLE TO ALLOW MOUNT
//*
//MOUNT    EXEC PGM=IKJEFT1A,DYNAMNBR=75,TIME=100,REGION=6M
//*
//* Mount the file system on an existing, empty directory
//*
//SYSPRINT DD SYSOUT=*
//SYSTSPRT DD SYSOUT=*
//SYSTERM  DD DUMMY
//SYSTSIN  DD *
  MOUNT FILESYSTEM('SSZ.SRVR62.HFS') +
    MOUNTPOINT('/opt/tectia') +
    TYPE(HFS) +
    MODE(RDWR)
/*

Note that mounting the file system causes an operator query that must be responded to. You may want to copy the mount command into the BPXPRMxx member in PARMLIB so that the file system will be mounted each time you IPL the system.