Unable to use df -h

Hi ,

On one of my solaris server I getan error whenever I use df -h as below.

df: unknown option: h
Usage: df [-F FSType] [-abegklntVv] [-o FSType-specific_options] [directory | block_device | resource]

But this works on other servers.Please advise.

Regards,
VN

Must be an old Solaris release. The -h option was introduced with Solaris 10, I think.

This option was actually introduced with Solaris 9.