Sun Microsystems StorEdge D2 Array Installation, Operation And Service Manual page 71

For example:
#
umount /export/home
#
umount /export/home2
7. Using the df command with the -k option, verify that the file system has been
unmounted.
If it is unmounted, it no longer appears in the list.
8. Remove the failed disk drive.
Go to "To Remove a Disk Drive" on page 4-9.
Chapter 4 Adding and Replacing FRUs 4-7