| Multiple VE containers sharing disk IO on HW with multiple HDDs. [message #43269] |
Tue, 16 August 2011 11:27  |
VE4FUN
Messages: 8
Registered: August 2011
|
Junior Member |
|
|
Hello,
I have OpenVZ node with multiple disks (12), node has multiple VE containers (30). Each HDD is shared between 2 - 4 VE.
It usually happens that 1 VE can utilise complete HDD and kill disk performances for other VE containers located on same HDD.
Is there any way to limit/share disk IO for machines located on same HDD, sharing disk IO between all machines per server is no good because of multiple HDD configuration.
Kind Regards,
VE4FUN
|
|
|
|
|
|
| Re: Multiple VE containers sharing disk IO on HW with multiple HDDs. [message #43273 is a reply to message #43271] |
Tue, 16 August 2011 15:23  |
VE4FUN
Messages: 8
Registered: August 2011
|
Junior Member |
|
|
Hello,
I know about wiki.openvz.org/Ioprio but I don't know how that can be from help when
for example:
HDD-1
VE: 101, 102, 103
HDD-2
VE: 104, 105, 106, 107
...
Now when VE 103 overuses HDD-1 only affected is HDD-1, Having global IO priority will mean that if HDD-2 containers are idle, HW will think that overall there is no disk over-usage, because total disk usage of HDD-1 + HDD-2 is no where near limits, but truth is something else, VE103 already reached HDD-1 disk IO limit and HW will do nothing to prevent it from doing that.
IO priority might work on single HDD but with multiple HDDs I doubt it serves the purpose.
Kind Regards,
VE4FUN
[Updated on: Tue, 16 August 2011 15:23] Report message to a moderator |
|
|
|
OpenVZ Forum
Members
Search
Help
Register
Login
Home
