The limits for QNX 4 filesystems include:
- Filename length
- 48 bytes, or 505 if .longfilenames exists before
mounting; see
"Filenames"
in the description of the QNX 4 filesystem in Working with Filesystems.
- Pathname length
- 1024 bytes
- File size
- 2 GB − 1
- Directory size
- No practical limit, although the
files that the directory uses to manage its contents are limited to
2 GB − 1 bytes, which works out to approximately
33 million files in a single directory. You wouldn't want to do
that, though, as directory scans are linear: they'd be very slow.
- Filesystem size
- 2 GB × 512; limited by the disk driver
- Disk size
- 264 bytes; limited by the disk driver
- Maximum user and group ID for
chgrp
or
chown
- 65534