If you want to remove a PCMCIA memory cards while a file system is mounted, you must use the eject(1) command.
% eject vol_alias_device_name
% eject pcmem0
A Removable Media Manager pop-up is displayed.
Click on the OK button.
Remove the PCMCIA memory card.
If you want to continue using the PCMCIA memory card, leave it in the PCMCIA socket. Use the volcheck(1) command so Volume Manager can remount the PCMCIA memory card. To run this command, type volcheck.