Re: [libvirt-users] VM Performance using KVM Vs. VMware ESXi

On 4/14/2015 6:32 PM, Tom Hughes wrote: > On 14/04/15 13:33, Jatin Davey wrote: > >> Thanks Dominique & Daniel. >> >> Looks like i need to upgrade my VMs kernel to make it aware of virtio. >> >> Found this information from this link: >> >> http://wiki.libvirt.org/page/Virtio#Disk_.28block.29_device_driver >> >> I tried without upgrading the Kernel and as soon as i start my VM it got >> into Kernel Panic. I will try using virtio after upgrading my VMs >> kernel. > > As somebody has already said it would have to be a really old kernel > to not handle virtio-block, and it's more likely that your bootloader > and/or initrd are confused by sda becoming vda. > > However if your kernel supports it then virtio-scsi should be even > better than virtio-block and shouldn't cause the device name to change. > > Tom > My VM is using the kernel 2.6.18-164.el5 [root@localhost ~]# uname -a Linux localhost 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux Should this be fine ?