LG AS740 - Manual (Page 254)

253 Settings
SD card & phone storage
Use the SD card & phone storage settings to monitor the used and
available space on your phone and on your microSD card, to manage
your microSD card, and if necessary, to reset the phone, erasing all of
your personal information.
SD card & phone storage screen
SD card, Total space and Available space Lists the amount of space
on any microSD card installed in your phone and the amount you have
used to store photos, videos, music, and other files.
Unmount SD card Unmounts the microSD card from your phone so
that you can format the card or safely remove it when the phone is on.
This setting is dimmed if there is no microSD card installed, if you have
already unmounted it, or if you have mounted the microSD card on
your computer.
Format SD card Permanently erases everything on a microSD card
and prepares it for use with your phone. You must unmount a microSD
card before you can format it.
Internal phone storage, Available space Lists the amount of
internal phone storage used by the operating system, its components,
applications (including those you downloaded), and their permanent
and temporary data.