admin@HomeServer_DS:~$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/md0 2.4G 1.3G 994M 57% /
devtmpfs 348M 0 348M 0% /dev
tmpfs 350M 20K 350M 1% /dev/shm
tmpfs 350M 17M 334M 5% /run
tmpfs 350M 0 350M 0% /sys/fs/cgroup
tmpfs 350M 864K 349M 1% /tmp
tmpfs 70M 0 70M 0% /run/user/196791
/dev/vg1000/lv 5.4T 3.7T 1.8T 69% /volume1
admin@HomeServer_DS:~$ du -xhd 1 / | sort -h -r
du: cannot read directory '/usr/syno/selfcheck': Permission denied
du: cannot read directory '/usr/syno/share/healthcheck': Permission denied
du: cannot read directory '/usr/syno/share/synotifyd': Permission denied
du: cannot access '/usr/syno/share/SecurityAdvisorReportUI/html': Permission denied
du: cannot access '/usr/syno/share/SecurityAdvisorReportUI/template': Permission denied
du: cannot read directory '/usr/syno/etc/www/certificate': Permission denied
du: cannot read directory '/usr/syno/etc/synoshare.bak': Permission denied
du: cannot read directory '/usr/syno/etc/synotifyd': Permission denied
du: cannot read directory '/usr/syno/etc/certificate/_archive': Permission denied
du: cannot read directory '/usr/syno/etc/packages/SynoFinder/appindex.db': Permission denied
du: cannot read directory '/usr/syno/etc/packages/SynoFinder/filters_so': Permission denied
du: cannot read directory '/usr/syno/etc/packages/SecureSignIn/preference/Annegret': Permission denied
du: cannot read directory '/usr/syno/etc/packages/SecureSignIn/preference/DhcpServer': Permission denied
du: cannot read directory '/usr/syno/etc/packages/SecureSignIn/preference/HyperBackup': Permission denied
du: cannot read directory '/usr/syno/etc/packages/SecureSignIn/preference/Melanie': Permission denied
du: cannot read directory '/usr/syno/etc/packages/SecureSignIn/preference/Wolfgang': Permission denied
du: cannot read directory '/usr/syno/etc/packages/SecureSignIn/preference/Antivirus': Permission denied
du: cannot read directory '/usr/syno/etc/packages/SecureSignIn/preference/SynologyPhotos': Permission denied
du: cannot read directory '/usr/syno/etc/packages/SecureSignIn/preference/USBCopy': Permission denied
du: cannot read directory '/usr/syno/etc/codesign/.gnupg': Permission denied
du: cannot read directory '/usr/syno/etc/payment/purchase_info': Permission denied
du: cannot read directory '/usr/syno/etc/keymanager': Permission denied
du: cannot read directory '/usr/syno/etc/ssl/cgi.key': Permission denied
du: cannot read directory '/usr/syno/etc/ssl/ssl.csr': Permission denied
du: cannot read directory '/usr/syno/etc/private/session/current.users.access.time': Permission denied
du: cannot read directory '/usr/syno/etc/letsencrypt': Permission denied
du: cannot read directory '/usr/syno/etc/logcollector/whitelist': Permission denied
du: cannot read directory '/usr/syno/etc/synocron.d': Permission denied
du: cannot read directory '/usr/syno/etc/synology-account/private': Permission denied
du: cannot read directory '/usr/syno/etc.defaults/payment/purchase_info': Permission denied
du: cannot read directory '/usr/syno/etc.defaults/ssl': Permission denied
du: cannot read directory '/usr/syno/etc.defaults/letsencrypt': Permission denied
du: cannot read directory '/usr/syno/etc.defaults/logcollector/whitelist': Permission denied
du: cannot read directory '/usr/syno/etc.defaults/synocron.d': Permission denied
du: cannot read directory '/usr/syno/etc.defaults/synology-account/private': Permission denied
du: cannot access '/usr/syno/synoman/webman/help/scrollbar/scss/config.rb': Permission denied
du: cannot access '/usr/syno/synoman/webman/help/scrollbar/scss/_flexcrollStyle.scss': Permission denied
du: cannot access '/usr/syno/synoman/webman/help/scrollbar/scss/flexcroll.scss': Permission denied
du: cannot read directory '/usr/share/pgsql/9.3/etc/postgresql': Permission denied
du: cannot read directory '/usr/local/packages/@tmp': Permission denied
du: cannot read directory '/usr/local/packages/@apphome/DhcpServer': Permission denied
du: cannot read directory '/usr/local/packages/@apphome/OAuthService': Permission denied
du: cannot read directory '/usr/local/packages/@apphome/SynoFinder': Permission denied
du: cannot read directory '/usr/local/packages/@apphome/SecureSignIn': Permission denied
du: cannot read directory '/usr/local/packages/@apphome/SMBService': Permission denied
du: cannot read directory '/usr/local/packages/@apphome/FileStation': Permission denied
du: cannot read directory '/usr/local/packages/@apphome/ScsiTarget': Permission denied
du: cannot read directory '/usr/local/packages/@apphome/Python2': Permission denied
du: cannot read directory '/usr/local/packages/@apphome/dsm6-ui-compatible': Permission denied
du: cannot read directory '/usr/local/packages/@apphome/USBCopy': Permission denied
du: cannot read directory '/usr/local/packages/@apphome/ActiveInsight': Permission denied
du: cannot read directory '/usr/local/packages/@appstore/SMBService/etc/samba/private': Permission denied
du: cannot read directory '/usr/local/packages/@appdata/SMBService/log': Permission denied
du: cannot read directory '/usr/local/packages/@appdata/ActiveInsight/event': Permission denied
du: cannot read directory '/usr/local/packages/@appdata/ActiveInsight/zzz': Permission denied
du: cannot read directory '/usr/local/etc/synocron_nonroot.d/SynologyDrive': Permission denied
du: cannot read directory '/usr/local/etc/synocron_nonroot.d/AntiVirus': Permission denied
du: cannot read directory '/usr/local/etc/synocron_nonroot.d/CodecPack': Permission denied
du: cannot read directory '/usr/local/etc/synocron_nonroot.d/SynologyPhotos': Permission denied
du: cannot read directory '/usr/local/etc/synocron_nonroot.d/SynologyApplicationService': Permission denied
du: cannot read directory '/usr/local/etc/synocron_nonroot.d/ActiveInsight': Permission denied
du: cannot read directory '/usr/local/etc/synotifyd': Permission denied
du: cannot read directory '/usr/local/etc/synoschedule.d/StorageAnalyzer': Permission denied
du: cannot read directory '/usr/local/etc/synocron.d': Permission denied
du: cannot read directory '/var.defaults/log/sssd': Permission denied
du: cannot read directory '/var.defaults/log/nginx': Permission denied
du: cannot read directory '/var.defaults/crash': Permission denied
du: cannot read directory '/var.defaults/lib/nfs/sm.bak': Permission denied
du: cannot read directory '/var.defaults/lib/nfs/rpc_pipefs': Permission denied
du: cannot read directory '/var.defaults/lib/nfs/sm': Permission denied
du: cannot read directory '/var.defaults/lib/synosmartblock': Permission denied
du: cannot read directory '/var.defaults/lib/sss/db': Permission denied
du: cannot read directory '/var.defaults/lib/sss/pipes/private': Permission denied
du: cannot read directory '/var.defaults/lib/sss/keytabs': Permission denied
du: cannot read directory '/lost+found': Permission denied
du: cannot read directory '/var/db/sudo': Permission denied
du: cannot read directory '/var/target': Permission denied
du: cannot read directory '/var/log/synomibclient': Permission denied
du: cannot read directory '/var/log/selfcheck': Permission denied
du: cannot read directory '/var/log/sssd': Permission denied
du: cannot read directory '/var/log/systemd': Permission denied
du: cannot read directory '/var/log/synolog': Permission denied
du: cannot read directory '/var/log/samba/cores': Permission denied
du: cannot read directory '/var/log/nginx': Permission denied
du: cannot read directory '/var/tmp/nginx/nginx.tmp': Permission denied
du: cannot read directory '/var/quarantine': Permission denied
du: cannot read directory '/var/crash': Permission denied
du: cannot read directory '/var/spool/webapi': Permission denied
du: cannot access '/var/cache/synopkg/lfs': Permission denied
du: cannot access '/var/cache/synopkg/notification': Permission denied
du: cannot access '/var/cache/synopkg/badge_count_records': Permission denied
du: cannot access '/var/cache/synopkg/installed': Permission denied
du: cannot read directory '/var/lib/nfs/sm.bak': Permission denied
du: cannot read directory '/var/lib/nfs/rpc_pipefs': Permission denied
du: cannot read directory '/var/lib/nfs/sm': Permission denied
du: cannot read directory '/var/lib/synosmartblock': Permission denied
du: cannot read directory '/var/lib/samba/winbindd_privileged': Permission denied
du: cannot access '/var/lib/datascrubbing/datascrubbing.status': Permission denied
du: cannot read directory '/var/lib/sss/db': Permission denied
du: cannot read directory '/var/lib/sss/pipes/private': Permission denied
du: cannot read directory '/var/lib/sss/keytabs': Permission denied
du: cannot read directory '/var/lib/net-snmp': Permission denied
du: cannot read directory '/var/lib/file-handle': Permission denied
du: cannot read directory '/var/net-snmp': Permission denied
du: cannot read directory '/etc/sssd': Permission denied
du: cannot read directory '/etc/postgresql': Permission denied
du: cannot read directory '/etc/space': Permission denied
du: cannot read directory '/etc/sudoers.d': Permission denied
du: cannot read directory '/etc.defaults/sssd': Permission denied
du: cannot read directory '/etc.defaults/postgresql': Permission denied
du: cannot read directory '/etc.defaults/sudoers.d': Permission denied
du: cannot read directory '/root': Permission denied
1.2G /
956M /usr
194M /var
37M /.syno
5.9M /var.defaults
3.2M /etc
2.6M /.log.junior
2.3M /etc.defaults
24K /.system_info
24K /.old_patch_info
16K /volumeUSB1
4.0K /tmpRoot
4.0K /root
4.0K /mnt
4.0K /lost+found
4.0K /initrd