KVM, how to stop the abuse?

[Spetsnaz]

Is there any way to determine which vps is being abusesive under KVM?
I know in SolusVM it doesn't show anything, but i know there must be some sort of script for my OS (CentOS 6 64bit) to use.

 

[necs]

SSH the node and type top. See the top PID, press q to exit and then type ps aux | grep PID. Then you can see the vm details.

 

[Spetsnaz]

I found out that "virt-top" is the right way. :D

 

[REAK]

I found out that "virt-top" is the right way. :D

Nice to know it worked out for you ^_^

 

[Spetsnaz]

Is there a way to improve the horrible I/O read on windows and such?
Like it lags like a mofo.

 

[DLow]

@ Spetsnaz

Give me more information please.

 

[Spetsnaz]

Yeah, like I see that some Windows VPS under KVM lag, like if they were being suffocated.

 

[Sonic]

Is there a way to improve the horrible I/O read on windows and such?
Like it lags like a mofo.

you should install win virtio drivers, it will improve I/O and network performance by an 500%.

http://alt.fedoraproject.org/pub/alt/virtio-win/latest/images/bin/

Edit KVM guest config file and add:
<disk type='file' device='cdrom'>
<source file='/home/kvm/iso/virtio-win-0.1-59.iso'/>
<target dev='hdc'/>
<readonly/>
</disk>

Load the "storage" drivers from windows installer. For net virtio driver, uninstall default network card, reboot the machine and load net drivers "XP" from mounted iso, reboot, configure network.

If you have problems contact me I am sys admin I know, linux, solusvm, kvm, xen, whm/cpanel, sql, apache, db, etc

 

[Spetsnaz]

@sonic
could u add my skype so u could help me out on this, having a bit of a issue. :/
VictorVenciso

 

[Sonic]

the above guide is for clean installs, but if you have windows already installed then the following guide is for you (dont forget to mount the iso on KVM guest XML file):

http://kahdev.wordpress.com/2011/05/30/using-virtio-drivers-in-a-kvm-windows-guest-vm/

 

[Spetsnaz]

For

<disk type='file' device='cdrom'>
<source file='/home/kvm/iso/virtio-win-0.1-59.iso'/>
<target dev='hdc'/>
<readonly/>
</disk>

How would i do this automatically when creating first time windows vps on solusvm?

And I used http://docs.solusvm.com/kvm_guest_drivers
not sure if its the same...

 

[Sonic]

yes you can, if you create an batch file. See SolusVM developer guide or contact SolusVM developers.


you should check the virtual machine config file editor from SolusVM Master.

 

[Spetsnaz]

I am still very confused.
I can't seem to get it through my stupid thick skull.

 

[Sonic]

On SolusVM Master, you should do it for each KVM machine add:
<disk type='file' device='cdrom'>
<source file='/home/kvm/iso/virtio-win-0.1-59.iso'/>
<target dev='hdc'/>
<readonly/>
</disk>

to that config file and save

 

[Spetsnaz]

oh okay. Thank you.
And for the auto doing it on first time creation I can't seem to find any guide for it on
http://docs.solusvm.com/v2/Default.htm#Developer/Admin-Api/Admin-Api.htm

 

[Sonic]

you should add it in <device></device> tags e.g.:

<device>
<disk type='file' device='cdrom'>
<source file='/home/kvm/iso/virtio-win-0.1-59.iso'/>
<target dev='hdc'/>
<readonly/>
</disk>

Other Devices Listed Here.....
</device>

---------- Post added at 08:39 AM ---------- Previous post was at 08:34 AM ----------

oh okay. Thank you.
And for the auto doing it on first time creation I can't seem to find any guide for it on
http://docs.solusvm.com/v2/Default.htm#Developer/Admin-Api/Admin-Api.htm

it's so hard to copy & paste the KVM guest config on Solus Master then add the new cdrom device?

 

[Spetsnaz]

Like this?

<domain type='kvm'>
 <name>kvm432</name>
 <uuid>8a425580-e741-4614-b84d-d4e2cd444064</uuid>
 <memory>6668288</memory>
 <currentMemory>6668288</currentMemory>
  <memtune>
   <hard_limit>6719488</hard_limit>
  </memtune>
 <vcpu>1</vcpu>
 <cpu>
  <topology sockets='1' cores='1' threads='1'/>
 </cpu>
  <os>
   <type machine='pc'>hvm</type>
   <boot dev='cdrom'/>
   <boot dev='hd'/>
  </os>
 <clock sync='localtime'/>
  <devices>
   <emulator>/usr/libexec/qemu-kvm</emulator>
    <disk type='file' device='disk'>
     <source file='/dev/vg/kvm432_img'/>
     <target dev='hda' bus='ide'/>
     <driver cache='writethrough'/>
    </disk>
<disk type='file' device='cdrom'>
<source file='/home/solusvm/kvm/driver/Windows-Virtio-Drivers-v0.1.30.iso'/>
<target dev='hdc'/>
<readonly/>
</disk> 
    <interface type='bridge'>
     <model type='e1000' />
     <source bridge='br0'/>
     <target dev='kvm432.0'/>
     <mac address='02:00:00:2c:ae:8b'/>
    </interface>
    <graphics type='vnc' port='6033' passwd='password' listen='0.0.0.0'/>
    <input type='tablet'/>
    <input type='mouse'/>
    </devices>
    <features>
    <acpi/>
    <apic/>
    </features>
    </domain>

 

[Sonic]

Don't forget it:

reboot the machine and add:

<disk type='file' device='cdrom'>
<source file='/home/solusvm/kvm/driver/Windows-Virtio-Drivers-v0.1.30.iso'/>
<target dev='hdc'/> <readonly/>
</disk>

save and reboot again

 

[Spetsnaz]

And that loads it automatically without having to install it on Device Manager, eh?

 

[Sonic]

No, for net virtio you should do it manually when windows start for first time.

For storage drivers its during windows installation when you're going to select the disk drive click on "load drivers" and select wxp folder Viostor drivers