This chapter describes how to re-install, or remove HLASM Toolkit Feature and how to apply service updates. To effectively use the maintenance procedures, you must have already installed HLASM Toolkit Feature and any required products.

To become more familiar with service using VMSES/E, refer to z/VM: VMSES/E Introduction and Reference. This manual also contains the command syntax for the VMSES/E commands listed in the procedure.

Each step of the service instructions must be followed; do not skip any step unless otherwise directed. All instructions showing accessing of disks assume default minidisk addresses. If different minidisk addresses are used, or if using a shared-file system, change the instructions appropriately.