File System Limits

Limit

Description

File size – All ports

(2^31) - 1 bytes, commonly known as "2 gigabytes".

File size – Selected ports

(2^32) - 1 bytes, commonly known as "4 gigabytes".

File size – Selected ports

64-bit files, 9.2 Exabytes (9,223,372,036,854,775,807 bytes) as the maximum possible file size.

Record size

32767 bytes.

Number of records

Unlimited, as long as the maximum file size is not exceeded.

Key size – DIRECT and SORT files

64 bytes.

Key size – MKEYED files

120 bytes.

Maximum number of keys – MKEYED files

16 (all must be placed in the first 1024 bytes of the record).

Maximum number of key segments – MKEYED files

48

Although PRO/5 has its own file limits, be aware that the host system will also impose limits. Check your operating system manual for further information.