This section contains programming interface information.

This topic describes the zFS application programming interface (API), pfsctl (BPX1PCT). Information is presented about the following ZFS commands and subcommands, which are used to manage zFS aggregates and file systems and to query and set configuration options:

• ZFSCALL_AGGR (0x40000005
• ZFSCALL_FILESYS (0x40000004)
• ZFSCALL_CONFIG (0x40000006)
• ZFSCALL_STATS (0x40000007)

The z/OS® UNIX pfsctl (command X'C000000B') can also retrieve zFS reason code text. For more information, see the description of the PC#ErrorText pfsctl command in the usage notes for the BPX1PCT service in z/OS UNIX System Services Programming: Assembler Callable Services Reference.

For information about how to invoke the pfsctl (BPX1PCT) application programming interface in a 64-bit environment, refer to Running the zFS pfsctl APIs in 64-bit mode.

This topic also describes a zFS w_pioctl call for fileinfo.