Good morning, I've a "little" problem in my backup machine. It can not be able to do the backups, because it detect 96% space used. But it is not true.
I launched some commands on the physical machine, here I give you the outputs.
ubuntu@BACKUP:~$ sudo df -h Filesystem Size Used Avail Use% Mounted on udev 992M 0 992M 0% /dev tmpfs 200M 21M 180M 11% /run /dev/xvda1 20G 4.8G 15G 25% / tmpfs 1000M 0 1000M 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 1000M 0 1000M 0% /sys/fs/cgroup /dev/mapper/vg_data-lv_data_backup 640G 580G 30G 96% /data/backup /dev/mapper/vg_data-lv_data_archive 640G 49G 559G 9% /mnt/lv_data_archive tmpfs 200M 0 200M 0% /run/user/1000 As you can see, in /dev/mapper/vg_data-lv_data_backup there are 30GB disappeared. I know it is an ext4 partition and it reserves 5% space for root commands. But it doesn't justify this wrong space...
Here other commands:
root@BACKUP:/data# du -h -d1 /data/backup 16K /data/backup/lost+found 531G /data/backup/BackupPC 50G /data/backup/DumpDB 580G /data/backup ubuntu@BACKUP:~$ sudo lsof +L1 | numfmt --field=7 --to=iec --invalid='ignore' COMMAND PID USER FD TYPE DEVICE SIZE/OFF NLINK NODE NAME systemd-j 388 root txt REG 202,1 319K 0 52456 /lib/systemd/systemd-journald (deleted) dhclient 1010 root txt REG 202,1 476K 0 4269 /sbin/dhclient (deleted) lxcfs 1202 root txt REG 202,1 19K 0 24454 /usr/bin/lxcfs (deleted) systemd-l 1233 root txt REG 202,1 605K 0 52482 /lib/systemd/systemd-logind (deleted) agetty 1476 root txt REG 202,1 44K 0 4308 /sbin/agetty (deleted) agetty 1482 root txt REG 202,1 44K 0 4308 /sbin/agetty (deleted) BackupPC 1625 backuppc txt REG 202,1 1.9M 0 6550 /usr/bin/perl (deleted) root@BACKUP:/data# dumpe2fs -h /dev/mapper/vg_data-lv_data_backup dumpe2fs 1.42.13 (17-May-2015) Filesystem volume name: <none> Last mounted on: /data/backup Filesystem UUID: 8f2689b8-6ed0-47d2-833c-904097eb6a34 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize Filesystem flags: signed_directory_hash Default mount options: user_xattr acl Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 42598400 Block count: 170393600 Reserved block count: 7869498 Free blocks: 57647530 Free inodes: 40094191 First block: 0 Block size: 4096 Fragment size: 4096 Reserved GDT blocks: 983 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 8192 Inode blocks per group: 512 Flex block group size: 16 Filesystem created: Tue Aug 22 12:04:28 2017 Last mount time: Fri Dec 15 12:20:05 2017 Last write time: Fri Dec 15 12:20:05 2017 Mount count: 16 Maximum mount count: -1 Last checked: Tue Aug 22 12:04:28 2017 Check interval: 0 (<none>) Lifetime writes: 5450 GB Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Journal inode: 8 Default directory hash: half_md4 Directory Hash Seed: fd48ebc6-99be-468a-8c2d-3aa600ce2412 Journal backup: inode blocks Journal features: journal_incompat_revoke Journal size: 128M Journal length: 32768 Journal sequence: 0x00011b23 Journal start: 30397 Thank you
