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Disk usage with plop. [SOLVED] [message #51446] Fri, 06 June 2014 16:20 Go to next message
piplite is currently offline  piplite
Messages: 27
Registered: March 2008
Junior Member
From: *hsd1.ma.comcast.net
2.6.32-042stab088.4
vzctl version 4.7.2

The issue is this.
VE was converted from simfs to ploop.
I get
root@server1:/# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/simfs 9.9G 4.5G 5.4G 45% /
tmpfs 2.0M 0 2.0M 0% /lib/init/rw
tmpfs 1.0G 0 1.0G 0% /dev/shm

But
/vz/private/505 # du -sh *
38G root.hdd
4.0K Snapshots.xml

There are no snapshots but VE root.hdd for some reason takes up 38 gig instead of 5-10.
What could be wrong and how to bring it down in size?

Thank you.

[Updated on: Sun, 08 June 2014 01:00]

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Re: Disk usage with ploop. [message #51448 is a reply to message #51446] Sun, 08 June 2014 00:31 Go to previous messageGo to next message
piplite is currently offline  piplite
Messages: 27
Registered: March 2008
Junior Member
From: *hsd1.ma.comcast.net
Just for the sake of additional information.
Last night i tried vzctl compact on stopped and unmounted VE, but no success.

root@a-2 /vz/private/505/root.hdd # vzctl --version
vzctl version 4.7.2
root@a-2 /vz/private/505/root.hdd # dpkg --list | grep ploop
ii  libploop1:amd64                     1.11-1                        amd64        ploop API library
ii  ploop                               1.11-1                        amd64        tools to work with ploop devices and images
root@a-2 /vz/private/505/root.hdd # uname -a
Linux a-2.g.net 2.6.32-042stab088.4 #1 SMP Tue Apr 22 03:30:47 EDT 2014 x86_64 GNU/Linux


root@a-2 /vz/private/505/root.hdd # du -sh *
4.0K    DiskDescriptor.xml
0       DiskDescriptor.xml.lck
38G     root.hdd
root@a-2 /vz/private/505/root.hdd # vzctl exec 505 df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/simfs             28G  4.5G   21G  18% /
tmpfs                 2.0M     0  2.0M   0% /lib/init/rw
tmpfs                 1.0G     0  1.0G   0% /dev/shm


As well as
# ploop-balloon discard /vz/private/505/root.hdd/DiskDescriptor.xml
Trying to find free extents bigger than 0 bytes
Waiting
Call FITRIM, for minlen=33554432
Call FITRIM, for minlen=16777216
Call FITRIM, for minlen=8388608
Call FITRIM, for minlen=4194304
Call FITRIM, for minlen=2097152
Call FITRIM, for minlen=1048576
0 clusters have been relocated

[Updated on: Sun, 08 June 2014 00:37]

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Re: Disk usage with ploop. [message #51449 is a reply to message #51448] Sun, 08 June 2014 00:54 Go to previous message
piplite is currently offline  piplite
Messages: 27
Registered: March 2008
Junior Member
From: *hsd1.ma.comcast.net
Ok finally i came up with solution.

vzctl stop 505
vzctl set 505 --diskspace 40G --offline-resize --save (this shrank down the size from almost 40 gig down to 5.3 gig)
vzctl start 505

All works fine. But I'm not sure how to do the same thing by hand in production.
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