Identifying driving system hardware requirements

In addition to the hardware needed to run a driving system and the DASD required to install the software, you need:

A TSO/E terminal, preferably a color terminal if you are doing a ServerPac installation because the ServerPac Installation Dialog uses color to identify key information on panels.
Sufficient real storage. For ServerPac and dump-by-data-set SystemPac installations, at least 94 MB of real storage is required for test systems on which there is one interactive TSO/E user and only the RESTFS job will run, or at least 42 MB of real storage for systems supporting other workloads (plus whatever real storage is needed to support the system's normal workload).
For orders delivered on tape, a tape device capable of reading one of the following:
- IBM® 3592 tape cartridges.
- IBM 3590 tape cartridges.
- A DVD reader for a 4.7 GB (single-sided, single-layered) DVD.
For orders delivered on DVD:
- A DVD reader for a 4.7 GB (single-sided, single-layered) DVD.
- A workstation that is network-attached to your z/OS® host system.
- Enough workstation hard drive space to download the order if you use store-and-forward. (About 6 GB is required for a z/OS-only order. More products require more space.)
For orders delivered electronically (using the Internet):
- Sufficient SMPNTS DASD space for your ServerPac or CBPDO package. You will need approximately two times the size of your order. The customized download pages indicate your order size and the installation instructions on the download page provide formulas to help you calculate the amount of space required for your order. As a guideline, about 6 GB (compressed) is required for a z/OS-only order. More products require more space. A typical subsystem order is approximately 500 MB (compressed).
  To provide sufficient work space, add at least 950 cylinders to the space required to download the package and use a secondary space allocation amount for the file system
- Enough workstation hard drive space to download the order if you use store-and-forward. (About 6 GB is required for a z/OS-only order. More products require more space.)
- A firewall configuration that supports downloads of a long duration without closing the connection. The control connection can also benefit from keepalive packets. For more information, see z/OS Communications Server: IP Configuration Reference.
- For direct download, using the ICSF One-Way Hash Generate callable service to verify the SHA-1 hash value can have associated hardware requirements. Enabling this function varies, depending on your server; you might need to order and enable additional features.
  For list of features that must be ordered, see z/OS Cryptographic Services ICSF System Programmer's Guide.
  
  Optionally, the hash value can be calculated by SMP/E (instead of by ICSF). SMP/E V3R6 and later supports the use of an SMP/E Java™ application class to perform the calculation. However, the calculation is done more quickly if ICSF is used rather than SMP/E. But ICSF must be active. If z/OS does not detect ICSF to be active, SMP/E is used to calculate the hash value.