Note:  If external key management is later enabled, these USB sticks are no longer needed. 

The External Key Encryption (FC 5276) must have FC 5272 installed on the TS7770 server before initial installation. Consider the following points: 

GLYPH<SM590000> All TS7700 configurations with any encryption type enabled is always shipped with local key management enabled first. 

GLYPH<SM590000> After a TS7770 with FC 5272 is configured in a customer environment and can communicate with an external key server, FC 5276 can be activated to transition to external key management. 

External key management can be concurrently enabled after the TS7770 is installed in customer site. Only distributed version of ISKLM are supported (not z/OS). KMIP is used for the protocol. Connection is TLS 1.2 protected. 

## 4.5 Tape analysis and sizing the TS7700 

This section documents the process of the use of various tools to analyze current tape environments and to size the TS7700 to meet specific requirements. It also shows you how to access a tools library that offers many jobs to analyze the current environment, and a procedure to unload specific System Management Facility (SMF) records for a comprehensive sizing with BatchMagic , which must be done by an IBM SSR or IBM Business Partner. 

## 4.5.1 IBM tape tools 

Although most IBM tape tools are available to you, some tools, such as BatchMagic, are available to IBM personnel and IBM Business Partners only. You can download the tools that are generally available from this IBM Software FTP web page. 

The web page features a list of .TXT , .PDF , and .EXE  files. To start, open the OVERVIEW.PDF  file to see a brief description of all the various tool jobs. All jobs are in the IBMTOOLS.EXE  file, which is a self-extracting compressed file. After this file is downloaded to your PC, you can expand it into the following files: 

GLYPH<SM590000> IBMJCL.XMI : Job control language (JCL) for current tape analysis tools 

GLYPH<SM590000> IBMJCL.XMI : Parameters that are needed for job execution 

GLYPH<SM590000> IBMLOAD.XMI : Load library for executable load modules 

GLYPH<SM590000> IBMPAT.XMI : Data pattern library, which is needed only if you run the QSAMDRVR utility 

Two areas of investigation can assist you in tuning your current tape environment by identifying the factors that influence the overall performance of the TS7700. An example of factors is bad block sizes; that is, smaller than 16 KB, and low compression ratios, both of which can negatively affect performance. 

## SMF record types 

System Management Facilities (SMF) is a component of the mainframe z/OS that provides a standardized method for writing out records of activity to a data set. The volume and variety of information in the SMF records enable installations to produce many types of analysis reports and summary reports. 

