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Re: [PLUG] Need Troubleshooting Advice: Disk Errors in Virtual Machines
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On Tuesday 21 September 2010 7:25:26 pm Lee Marzke wrote:
> On 09/21/2010 06:04 PM, Casey Bralla wrote:
> > I've got a weird problem which I hope somebody here can help me figure
> > out.
> >
> > I'm running about a dozen virtual machines (mostly web servers) on a
> > triple- core AMD system running Debian Lenny (ie: "Stable"). Each of
> > the virtual machines is also running Debian Lenny.
> >
> > I am having repeated disk errors on the Virtual Machines, but no disk
> > errors on the host machine. These disk errors often cause a Kernel
> > Panic within the VM, or otherwise crash the web server on the VM.
>
> What are the specs on the host, memory, number/type of disks, vmware
> server version
> amount of RAM allocated to VM's and amount left over for the host.
Host Specs:
AMD Phenom Triple Core 2.4 GHz
ASRock Motherboad with AMD RS870L chipset
4 GBytes G.Skill RAM (2 DIMMS)
Debian Lenny
VMware Server 2.0.2 Build 203138
free reports:
total used free shared buffers cached
Mem: 3935036 3902036 33000 0 154324 2704932
-/+ buffers/cache: 1042780 2892256
Swap: 11807732 748 11806984
df -h reports:
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 576G 184G 363G 34% /
tmpfs 1.9G 0 1.9G 0% /lib/init/rw
udev 10M 748K 9.3M 8% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
Most VM's given 64 MBytes RAM and 3 GByte SATA disks (which are fully
allocated when they are created)
Here's a mem and free from within a "typical" VM:
total used free shared buffers cached
Mem: 61480 58980 2500 0 26456 12560
-/+ buffers/cache: 19964 41516
Swap: 176672 540 176132
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 2.8G 676M 2.0G 25% /
tmpfs 31M 0 31M 0% /lib/init/rw
udev 10M 600K 9.5M 6% /dev
tmpfs 31M 0 31M 0% /dev/shm
--
Casey Bralla
Chief Nerd in Residence
The NerdWorld Organisation
http://www.NerdWorld.org
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