[PVE-User] about IO Delay using openvz and zimbra

[Orlando Martinez Bao]

Hola Sr. Link
Please can you tell how can i do that??, maybe do you have a link that I can
use to do that?
Thanks
Best Regard
Orlando

-----Mensaje original-----
De: pve-user [mailto:pve-user-bounces at pve.proxmox.com] En nombre de Wolfgang
Link
Enviado el: viernes, 17 de junio de 2016 1:21
Para: PVE User List
Asunto: Re: [PVE-User] about IO Delay using openvz and zimbra

Hi,

I have also a T320 with the H310 Controller and this give me a hard time
because the Dell firmware were not working properly, so I decide flash the
LSI firmware on this controller.

I use zfs with the IT mode of the Dell firmware before now the LSI firmware
and it works perfect.

On 06/17/2016 04:38 AM, Orlando Martinez Bao wrote:
> Hello friends
> 
> I am SysAdmin at the Agrarian University of Havana, Cuba.
> 
>  
> 
> I have installed Proxmox v3.4 here a cluster of seven nodes and for 
> some days I am having problems with a node in the cluster which only 
> has a Container with Zimbra 8.
> 
> The problem is I'm having a lot of I / O Delay and that server is very 
> slow to the point that sometimes the service is down.
> 
> The server is PowerEdge T320 Dell with Intel Xeon E5-2420 12gram with 
> 12 cores and 1GB of disk 7200RPM 2xHDD are configured as RAID1.
> 
> I have virtualizing the zimbra 8 using a template of 12.04, has 8 
> cores, 8G RAM, 500GHD the storage of container is local storage.
> 
> Then I put the output to see the IO when you are not running the VM. 
> Look at the BUFFERED READS that are marked are very bad. And those 
> moments have seen IO Delay up to 50%.
> 
>  
> 
> root at n07:~# pveperf
> 
> CPU BOGOMIPS:      45601.20
> 
> REGEX/SECOND:      1025079
> 
> HD SIZE:           9.84 GB (/dev/mapper/pve-root)
> 
> BUFFERED READS:    1.51 MB/sec
> 
> AVERAGE SEEK TIME: 165.88 ms
> 
> FSYNCS/SECOND:     0.40
> 
> DNS EXT:           206.20 ms
> 
> DNS INT:           0.91 ms (unah.edu.cu)
> 
> root at n07:~# pveperf
> 
> CPU BOGOMIPS:      45601.20
> 
> REGEX/SECOND:      1048361
> 
> HD SIZE:           9.84 GB (/dev/mapper/pve-root)
> 
> BUFFERED READS:    0.78 MB/sec
> 
> AVERAGE SEEK TIME: 283.84 ms
> 
> FSYNCS/SECOND:     0.50
> 
> DNS EXT:           206.13 ms
> 
> DNS INT:           0.89 ms (unah.edu.cu)
> 
> root at n07:~# pveperf (Este fue cuando detuve la VM)
> 
> CPU BOGOMIPS:      45601.20
> 
> REGEX/SECOND:      1073712
> 
> HD SIZE:           9.84 GB (/dev/mapper/pve-root)
> 
> BUFFERED READS:    113.04 MB/sec
> 
> AVERAGE SEEK TIME: 13.49 ms
> 
> FSYNCS/SECOND:     9.66
> 
> DNS EXT:           198.59 ms
> 
> DNS INT:           0.86 ms (unah.edu.cu)
> 
> root at n07:~# pveperf
> 
> CPU BOGOMIPS:      45601.20
> 
> REGEX/SECOND:      1024213
> 
> HD SIZE:           9.84 GB (/dev/mapper/pve-root)
> 
> BUFFERED READS:    164.30 MB/sec
> 
> AVERAGE SEEK TIME: 13.61 ms
> 
> FSYNCS/SECOND:     16.34
> 
> DNS EXT:           234.75 ms
> 
> DNS INT:           0.94 ms (unah.edu.cu)
> 
>  
> 
>  
> 
> Please help me.
> 
> Best Regards
> 
> Orlando
> 
>  
> 
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> 

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