When you moved (copied?) your three folders to , did you delete the original folders before you did the "mount bind"? If you did not, the original folders are still taking up space and there is no way to directly get to them to recover the space. If the original files are still there, you need to unmounts the binds, delete the original files and then remount the binds.

Don't worry that you've moved the flexshares and they are still being reported under /var/flexshare. That is where they logically belong in the file system, but physically they are on /dev/sda1.

I need to learn the LVM stuff to work out what is happening with the device-mapper. I don't think it is very much. I think it is on /dev/sdb2 and contains two partitions, swap and the rest (including the original /var). As it is using the LVM you could have used the LVM manager (mdadm) to add one of your other disks to the volume to increase the volume of the apparent disk. I don't like this as it means you have no idea which disk any file is on (and presumably big files can get split between disks). Also I think it is a bad idea in your case as you will have no control over which files are on the SSD and which on the conventional disk so you could end up losing all the benefits of a high speed disk.

Hi,

I tried that with little success.

If i run the df -h command, then I see that the /dev/mapper.clearos-root is using 781Gb of the drive.

[root@server ~]# df -h

Filesystem                Size  Used Avail Use% Mounted on

/dev/mapper/clearos-root  923G  781G  143G  85% /

devtmpfs                  7.9G     0  7.9G   0% /dev

tmpfs                     7.9G   12K  7.9G   1% /dev/shm

tmpfs                     7.9G  219M  7.7G   3% /run

tmpfs                     7.9G     0  7.9G   0% /sys/fs/cgroup

/dev/sdb1                 497M  234M  264M  48% /boot

tmpfs                     1.6G     0  1.6G   0% /run/user/991

/dev/sda1                 1.8T  517G  1.2T  30% /Backups

/dev/sdc1                 1.8T  451G  1.3T  26% /B_One

/dev/sdd1                 1.8T  444G  1.3T  26% /B_Two

tmpfs                     1.6G     0  1.6G   0% /run/user/0

If i then run the du -h --max-depth=1 / it points me to the /var/flexshare folder.

[root@server ~]# du -h --max-depth=1 /

209M    /boot

12K     /dev

du: cannot access â/proc/9369/task/9369/fd/4â: No such file or directory

du: cannot access â/proc/9369/task/9369/fdinfo/4â: No such file or directory

du: cannot access â/proc/9369/fd/4â: No such file or directory

du: cannot access â/proc/9369/fdinfo/4â: No such file or directory

0       /proc

219M    /run

0       /sys

36M     /etc

52K     /root

4.0K    /tmp

554G    /var

2.4G    /usr

664K    /home

0       /media

0       /mnt

0       /opt

0       /srv

0       /store

517G    /Backups

451G    /B_One

444G    /B_Two

2.0T    /



[root@server ~]# du -h --max-depth=1 /var

6.0G    /var/lib

2.2G    /var/log

0       /var/adm

215M    /var/cache

1.3M    /var/db

0       /var/empty

0       /var/games

0       /var/gopher

0       /var/local

0       /var/nis

0       /var/opt

0       /var/preserve

7.3G    /var/spool

4.0K    /var/tmp

0       /var/yp

0       /var/kerberos

4.0K    /var/state

279M    /var/clearos

0       /var/crash

537G    /var/flexshare

758M    /var/www

4.0K    /var/ftp

0       /var/samba

554G    /var



[root@server ~]# du -h --max-depth=1 /var/flexshare/shares

988M    /var/flexshare/shares/ddb

23G     /var/flexshare/shares/mdd

36G     /var/flexshare/shares/photos

372G    /var/flexshare/shares/backups

0       /var/flexshare/shares/backupdrive

8.0K    /var/flexshare/shares/website3.com

8.0K    /var/flexshare/shares/website2.co.za

285M    /var/flexshare/shares/website4.co.za

395M    /var/flexshare/shares/website.co.za

79M     /var/flexshare/shares/website1.co.za

107G    /var/flexshare/shares/development

537G    /var/flexshare/shares

However i have moved the data for /var/flexshare/shares/photos, /var/flexshare/shares/development and /var/flexshare/shares/backups to the 2Tb drive mounted on /Backups with bind mounts to the /var/flexshare/shares folder. Have I done something wrong in the fstab file?

[root@server ~]# cat /etc/fstab



#

# /etc/fstab

# Created by anaconda on Fri Feb 24 08:38:45 2017

#

# Accessible filesystems, by reference, are maintained under '/dev/disk'

# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info

#

/dev/mapper/clearos-root /                       xfs     defaults        0 0

UUID=67c9a92c-8930-4833-9eaa-140ee5e5ecdb /boot                   xfs     defaults        0 0

/dev/mapper/clearos-swap swap                    swap    defaults        0 0

/dev/sda1       /Backups        ext4    defaults        0 0

/Backups/Backups        /var/flexshare/shares/backups   none    defaults,bind  0 0

/Backups/Development    /var/flexshare/shares/development       none    defaults,bind   0 0

/Backups/Photos /var/flexshare/shares/photos    none    defaults,bind   0 0

/dev/sdc1       /B_One  ext4    defaults        0 0

/dev/sdd1       /B_Two  ext4    defaults        0 0

/var/www/html   /var/flexshare/shares/website.co.za      none    defaults,bind   0 0

/var/www/virtual/website4.co.za     /var/flexshare/shares/website4.co.za        none   defaults,bind    0 0

/var/www/virtual/website3.com     /var/flexshare/shares/website3.com	none    defaults,bind   0 0

/var/www/virtual/website2.co.za  /var/flexshare/shares/website2.co.za     none    defaults,bind   0 0

/var/www/virtual/website1.co.za        /var/flexshare/shares/website1.co.za   none    defaults,bind   0 0

Please can you repeat the:

du -h --max-depth=1 /

making sure you include the trailing "/" or as Dave indicated, just do a "cd /" first. You can then work your way down the folder structure each time homing in on the folder with the highest figure.

As a couple of quick wins, have a look in /var/log and below and delete any old stuff you don't want. Also in your flexshares, have a look in your flexshare location (/var/flexshare/shares if you have not changed it) and look at your recycle bin (.trash? but I'm working from memory).

I'll have another look at your output at lunchtime.

You will want to change directory to / in order to run 'du -h --max-depth=1'. ie.

cd /
du -h --max-depth=1

From there, it will tell you which folder is the big consumer. Enter into the folder that is the big consumer with 'cd /directory_name' and then repeat

du -h --max-depth=1

You'll get the hang of it.

Another useful command for us to understand the situation is going to be:

df -h

Hi,

Thanks for the offer - I would happily accept help on this as it has me stumped. I've output the commands below:

[root@server ~]# fdisk -l



Disk /dev/sda: 2000.4 GB, 2000398934016 bytes, 3907029168 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk label type: dos

Disk identifier: 0x00044493



   Device Boot      Start         End      Blocks   Id  System

/dev/sda1            2048  3907028991  1953513472   83  Linux



Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes, 1953525168 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk label type: dos

Disk identifier: 0x000cc1f8



   Device Boot      Start         End      Blocks   Id  System

/dev/sdb1   *        2048     1026047      512000   83  Linux

/dev/sdb2         1026048  1953523711   976248832   8e  Linux LVM



Disk /dev/mapper/clearos-root: 991.2 GB, 991172755456 bytes, 1935884288 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes





Disk /dev/mapper/clearos-swap: 8455 MB, 8455716864 bytes, 16515072 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes





Disk /dev/sdc: 2000.4 GB, 2000398934016 bytes, 3907029168 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk label type: dos

Disk identifier: 0xaf68a7f3



   Device Boot      Start         End      Blocks   Id  System

/dev/sdc1            2048  3907029167  1953513560   83  Linux



Disk /dev/sdd: 2000.4 GB, 2000398934016 bytes, 3907029168 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk label type: dos

Disk identifier: 0x982c3424



   Device Boot      Start         End      Blocks   Id  System

/dev/sdd1            2048  3907029167  1953513560   83  Linux

[root@server ~]# du -h --max-depth=1

0       ./.pki

0       ./.spamassassin

12K     ./.ssh

0       ./ssh

52K     .

[root@server ~]# blkid

/dev/sda1: LABEL="Backup" UUID="51f820dd-9055-47c2-8354-833db87cee3c" TYPE="ext4"

/dev/sdb1: UUID="67c9a92c-8930-4833-9eaa-140ee5e5ecdb" TYPE="xfs"

/dev/sdb2: UUID="eZP5HM-BJtM-cAoG-bn5J-mD1r-Lc6i-eKry1e" TYPE="LVM2_member"

/dev/mapper/clearos-root: UUID="b4bbaf55-bbdc-47e3-944a-0d6be6b240c5" TYPE="xfs"

/dev/mapper/clearos-swap: UUID="fc7a7371-c4e9-40ab-b1ad-1ef1e8f678ae" TYPE="swap"

/dev/sdc1: UUID="a6f06139-fbec-4240-9a8e-40f5c77ba5f5" TYPE="ext4"

/dev/sdd1: UUID="8fee4bac-ab11-49bd-a37e-7f98e4b2cc83" TYPE="ext4"

[root@server ~]# cat /etc/fstab



#

# /etc/fstab

# Created by anaconda on Fri Feb 24 08:38:45 2017

#

# Accessible filesystems, by reference, are maintained under '/dev/disk'

# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info

#

/dev/mapper/clearos-root /                       xfs     defaults        0 0

UUID=67c9a92c-8930-4833-9eaa-140ee5e5ecdb /boot                   xfs     defaults        0 0

/dev/mapper/clearos-swap swap                    swap    defaults        0 0

/dev/sda1       /Backups        ext4    defaults        0 0

/Backups/Backups        /var/flexshare/shares/backups   none    defaults,bind  0 0

/Backups/Development    /var/flexshare/shares/development       none    defaults,bind   0 0

/Backups/Photos /var/flexshare/shares/photos    none    defaults,bind   0 0

/dev/sdc1       /B_One  ext4    defaults        0 0

/dev/sdd1       /B_Two  ext4    defaults        0 0

/var/www/html   /var/flexshare/shares/website.co.za      none    defaults,bind   0 0

/var/www/virtual/website4.co.za     /var/flexshare/shares/website4.co.za        none   defaults,bind    0 0

/var/www/virtual/website3.com     /var/flexshare/shares/website3.com	none    defaults,bind   0 0

/var/www/virtual/website2.co.za  /var/flexshare/shares/website2.co.za     none    defaults,bind   0 0

/var/www/virtual/website1.co.za        /var/flexshare/shares/website1.co.za   none    defaults,bind   0 0

[root@server ~]# findmnt

TARGET                                       SOURCE               FSTYPE   OPTIONS

/                                            /dev/mapper/clearos-root

                                                                  xfs      rw,relat

ââ/sys                                       sysfs                sysfs    rw,nosui

â ââ/sys/kernel/security                     securityfs           security rw,nosui

â ââ/sys/fs/cgroup                           tmpfs                tmpfs    ro,nosui

â â ââ/sys/fs/cgroup/systemd                 cgroup               cgroup   rw,nosui

â â ââ/sys/fs/cgroup/devices                 cgroup               cgroup   rw,nosui

â â ââ/sys/fs/cgroup/net_cls,net_prio        cgroup               cgroup   rw,nosui

â â ââ/sys/fs/cgroup/pids                    cgroup               cgroup   rw,nosui

â â ââ/sys/fs/cgroup/cpuset                  cgroup               cgroup   rw,nosui

â â ââ/sys/fs/cgroup/memory                  cgroup               cgroup   rw,nosui

â â ââ/sys/fs/cgroup/freezer                 cgroup               cgroup   rw,nosui

â â ââ/sys/fs/cgroup/blkio                   cgroup               cgroup   rw,nosui

â â ââ/sys/fs/cgroup/perf_event              cgroup               cgroup   rw,nosui

â â ââ/sys/fs/cgroup/hugetlb                 cgroup               cgroup   rw,nosui

â â ââ/sys/fs/cgroup/cpu,cpuacct             cgroup               cgroup   rw,nosui

â ââ/sys/fs/pstore                           pstore               pstore   rw,nosui

â ââ/sys/kernel/debug                        debugfs              debugfs  rw,relat

â ââ/sys/kernel/config                       configfs             configfs rw,relat

ââ/proc                                      proc                 proc     rw,nosui

â ââ/proc/sys/fs/binfmt_misc                 systemd-1            autofs   rw,relat

â   ââ/proc/sys/fs/binfmt_misc               binfmt_misc          binfmt_m rw,relat

ââ/dev                                       devtmpfs             devtmpfs rw,nosui

â ââ/dev/shm                                 tmpfs                tmpfs    rw,nosui

â ââ/dev/pts                                 devpts               devpts   rw,nosui

â ââ/dev/hugepages                           hugetlbfs            hugetlbf rw,relat

â ââ/dev/mqueue                              mqueue               mqueue   rw,relat

ââ/run                                       tmpfs                tmpfs    rw,nosui

â ââ/run/user/991                            tmpfs                tmpfs    rw,nosui

â ââ/run/user/0                              tmpfs                tmpfs    rw,nosui

ââ/var/flexshare/shares/website1.co.za

                                             /dev/mapper/clearos-root[/var/www/virtual/website1.co.za]

                                                                  xfs      rw,relat

ââ/var/flexshare/shares/website2.co.za

                                             /dev/mapper/clearos-root[/var/www/virtual/website2.co.za]

                                                                  xfs      rw,relat

ââ/var/flexshare/shares/website3.com   /dev/mapper/clearos-root[/var/www/virtual/website3.com]

                                                                  xfs      rw,relat

ââ/boot                                      /dev/sdb1            xfs      rw,relat

ââ/var/flexshare/shares/website.co.za /dev/mapper/clearos-root[/var/www/html]

                                                                  xfs      rw,relat

ââ/var/flexshare/shares/website4.co.za           /dev/mapper/clearos-root[/var/www/virtual/website4.co.za]

                                                                  xfs      rw,relat

ââ/Backups                                   /dev/sda1            ext4     rw,relat

ââ/B_One                                     /dev/sdc1            ext4     rw,relat

ââ/B_Two                                     /dev/sdd1            ext4     rw,relat

ââ/var/flexshare/shares/development          /dev/sda1[/Development]

                                                                  ext4     rw,relat

ââ/var/flexshare/shares/backups              /dev/sda1[/Backups]  ext4     rw,relat

ââ/var/flexshare/shares/photos               /dev/sda1[/Photos]   ext4     rw,relat

Do you want any help with this? If do, please give the output to:

fdisk -l

du -h --max-depth=1 /

blkid

cat /etc/fstab

findmnt (but you can edit out the bits including and below /sys, /proc, /dev and /run)

Hi,

Thanks for the responses. No, I have not completely resolved this. I moved my flexshares to an external drive and then used bind mounts for them. This brought my disc usage down from 100% to <90%. It's not ideal, but at least I can change/modify configuration without the Ooops message. The disc usage tool shows I'm only using <40Gb where the system report shows I'm using 780Gb. I think i may get a replacement solid state and do a fresh install. Then I can check the drive without hampering the live server.

Thanks!

How are you getting on with this? Have you resolved it?

You should use bind mounts to mount storage like /var/flexshare/shares to other devices. The advantage of using bindmounts over simply mounting the structure in place is that you can divide as desired.

Here is a howto article on the subject:

https://www.clearos.com/resources/documentation/clearos/content:en_us:kb_o_storage_manipulation_using_bindmounts

I can't really help troubleshoot at the moment as I'm miles away from home, and logical volumes are not my thing. Have a look in /etc/fstab and try to figure out how thing are mounted. If you are using bind mounts, be wary. If you copy data over to folder in preparation for it to be binf mounter, then once you do the bind mount, if you have not already deleted (or moved elsewhere) the original data, all that space is lost. It can only be recovered if you unmount the bind mount and delete the original data. Logical volume stuff is held elsewhere, but start with fstab.