Installing from Pax Files Using the SAMPJCL Method › Allocate and Mount a File System

Allocate and Mount a File System

You can use the zSeries File System (zFS) or hierarchical file system (HFS) for Pax-Enhanced ESD downloads.

This procedure details how to perform the following tasks:

• Allocate an HFS file system
• Create a new mount point in an existing maintenance directory
• Mount the file system on the newly created mount point
• Optionally permit write access to anyone in the same group as the person who created the directory

Important! USS commands are case-sensitive.

To allocate and mount the file system

1. Allocate the HFS. For example:

   //ALCHFS  EXEC  PGM=IEFBR14 
   //CAESD  DD  DSN=yourHFS dataset name, 
   // DISP=(NEW,CATLG,DELETE),UNIT=3390, 
   // DSNTYPE=HFS,SPACE=(CYL,(primary,secondary,1)) 
   

   The HFS is allocated.

2. Create a mount point for the file system. This example shows how to create a /CA/CAESD directory in an existing directory, /u/maint. From the TSO OMVS shell, enter the following commands:

   cd /u/maint/
   mkdir CA
   cd CA
   mkdir CAESD
   

   Note: This document refers to this structure as yourUSSESDdirectory.

   The mount point is created.

3. Mount the file system. For example, from TSO, enter the following command:

   MOUNT FILESYSTEM('yourHFS dataset name') 
         MOUNTPOINT('yourUSSESDdirectory') 
         TYPE(HFS)   MODE(RDWR)
   

   The file system is mounted.

4. (Optional) Set security permissions for the directory. You can use the chmod command to let other users access the ESD directory and its files. For example, to allow write access to the ESD directory for other users in your USS group, from the TSO OMVS shell, enter the following command:

   chmod -R 775 /yourUSSESDdirectory/
   

   Write access is granted.

   Note: For more information about the chmod command, see the IBM z/OS UNIX System Services User Guide (SA22-7802).