In this section are various notes/examples relating to Unix (primarily AIX).

Filesystems

• View
• Mount/Unmount
• Users Using
• Space Used In
• Change Size

Performance

• IO
• Memory

Miscellaneous

• Vim/Vi
• Fifo special files
• Useful finds

In this section are various notes/examples relating to Oracle

• Estimate Rollback Time
• Maximum mbrc

Mount a filesystem in directio mode (mount)

root@tpo >mount -o dio /a03

Options are:
	rw - use a unix cache
	dio - bypass unix cache
	cio - as above but allow ?

See also The Oracle (tm) Users' Co-Operative FAQ for a note I wrote related to this.

Add a default mount option for system reboots (chfs)

root@tpo >chfs -a options=cio /a09

Unmount a filesystem (unmount)

root@tpo >umount /a03

If you are unable to unmount a filesystem fuser can be used