On my MacBook Pro 10.7.1
mtmfs is disabled in /System/Library/LaunchDaemons/com.apple.mtmfs.plist
<key>Disabled</key>
<true/>
but:
/var/log/notice.log shows
Oct 9 14:09:57 smackerPro UserEventAgent[11]: com.apple.backupd-auto launchd job disabled
Oct 9 14:09:57 smackerPro UserEventAgent[11]: com.apple.backupd-wake launchd job disabled
Oct 9 14:09:57 smackerPro UserEventAgent[11]: com.apple.backupd-attach launchd job disabled
Oct 9 14:09:57 smackerPro UserEventAgent[11]: com.apple.mtmd launchd job disabled
Oct 9 14:09:57 smackerPro mtmfs[3465]: filesystem unmount attempted from stopFS
Oct 9 14:09:57 smackerPro UserEventAgent[11]: com.apple.mtmfs launchd job disabled
Oct 9 14:09:57 smackerPro UserEventAgent[11]: Cleaning up local snapshots on volume /
Oct 9 14:09:57 smackerPro UserEventAgent[11]: Cleaning up local snapshots on volume /Volumes/DATA/
Oct 9 14:09:57 smackerPro mds[76]: (Normal) FMW: DOUBLE SLASH Rename (source) - p:11 ac:4 am:51c1 t:57622115738851
Oct 9 14:09:57 smackerPro mds[76]: (Error) FMW: DOUBLE SLASH Rename (destination) - p:11 ac:4 am:51c1 t:57622115738851
Oct 9 14:09:57 smackerPro mds[76]: (Normal) FMW: DOUBLE SLASH Delete - p:11 ac:3 am:5c1 t:57622376115790
Oct 9 14:09:59 smackerPro UserEventAgent[11]: com.apple.backupd-auto launchd job enabled
Oct 9 14:09:59 smackerPro UserEventAgent[11]: com.apple.backupd-wake launchd job enabled
Oct 9 14:09:59 smackerPro UserEventAgent[11]: com.apple.backupd-attach launchd job enabled
Oct 9 14:09:59 smackerPro UserEventAgent[11]: com.apple.mtmd launchd job enabled
Oct 9 14:09:59 smackerPro UserEventAgent[11]: com.apple.mtmfs launchd job enabled
Oct 9 14:09:59 smackerPro mtmd[6206]: Set snapshot time:1318183801 (current time:1318183799)
Oct 9 14:10:04 smackerPro com.apple.mtmfs[6207]: /var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/T//mtmfsMap6207