it is (in my opinion a useless) process that scans your cards for media files. removing it has no advers affects what so ever. in addition to improved battery life , startup time is improved. to disable it , have becomeroot installed and in xterm type....

sudo gainroot

/etc/init.d/metalayer-crawler0 stop

cd /usr/sbin

mv /etc/rc2.d/S99metalayer-crawler0 /etc/rc2.d/K99metalayer-crawler0

exit

exit