Il 07/01/2014 18:00, users-request@xxxxxxxxx ha scritto:
Date: Tue, 7 Jan 2014 16:21:37 +0100
From: Gianluca Cecchi<gianluca.cecchi@xxxxxxxxx>
To: Gadi Ickowicz<gickowic@xxxxxxxxxx>
Cc: users<users@xxxxxxxxx>
Subject: Re: [Users] how to temporarily solve low disk space problem
preventing start of VM
Message-ID:
<CAG2kNCxw54+dANqGX79j1HzjLYgPbxujxkb83GwVzZMfj=jNfA@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset=UTF-8
On Tue, Jan 7, 2014 at 4:08 PM, Gadi Ickowicz wrote:
>Hi,
>
>The low disk space is controlled by a parameter in the engine called FreeSpaceCriticalLowInGB, and can be configured using the cli tool engine-config.
>
>you should be able to set it to something like 4 GB or maybe 3GB so you can start your vms with the following command:
>
>engine-config -s FreeSpaceCriticalLowInGB=3
>
>After doing this you have to restart the engine service (service ovirt-engine restart) for the changes to take effect.
>
>If you want to see what the current value is use engine-config -g FreeSpaceCriticalLowInGB.
>
>
>To see a list of all configurable values you can use engine-config --list
>
>Thanks,
>Gadi Ickowicz
It did the trick, thanks!
Could this parameter impact in general only start of new VMs or in any
way also already running VMs?
Gianluca
added gluster-users as they can responde to us questions.
Gianluca, as you are using glusterfs, and as I can see on your df output:
/dev/mapper/fedora-DATA_GLUSTER 30G 23G 7.8G 75%
/gluster/DATA_GLUSTER
node01.mydomain:gvdata 30G 26G 4.6G 85%
/rhev/data-center/mnt/glusterSD/node01.mydomain:gvdata
be careful to gluster cluster.min-free-disk option, that on gluster 3.1
and 3.2 it's default option is 0% (good for you!)
http://gluster.org/community/documentation//index.php/Gluster_3.2:_Setting_Volume_Options#cluster.min-free-disk
but I can't find the same documentation for gluster 3.4, that I suppose
you're using this gluster version on ovirt; otherwise on red hat storage
documentation cluster.min-free-disk default option is 10% (bad for you):
https://access.redhat.com/site/documentation/en-US/Red_Hat_Storage/2.1/html/Administration_Guide/chap-User_Guide-Managing_Volumes.html
so you fill your gvdata volume up to 90% and let we know if it's stop
I/O (or only write) or we can wait for a clarification from gluster guy :-)
best regards
a
--
Amedeo Salvati
RHC{DS,E,VA} - LPIC-3 - UCP - NCLA 11
email: amedeo@xxxxxxxxxx
email: amedeo@xxxxxxxxx
http://plugcomputing.it/redhatcert.php
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