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VMWare Server, hyper threading CPUs and the SMP kernel

Wednesday, June 18th, 2008

Just noticed an interesting quirk with VMWare Server and hyper threading CPUs

I told my VM to use 1 CPU but CentOS 4 install detected the underlying hardware CPU had hyper threading so installed the SMP kernel !

Linux localhost.localdomain 2.6.9-67.0.15.ELsmp #1 SMP Thu May 8 10:52:19 EDT 2008 i686 i686 i386 GNU/Linux

as opposed to creating a VM where underlying hardware didn’t have hyper threading where CentOS 4 install just installed the basic kernel !

Linux localhost.localdomain 2.6.9-67.0.15.EL #1 Thu May 8 10:39:19 EDT 2008 i686 i686 i386 GNU/Linux

Tags: centos, hyper-threading, kernel, smp, vmwsvr
Posted in centos, vm, vmware | No Comments »

rPath approachs 10,000 software appliances

Thursday, June 12th, 2008

According to www.rpath.com/rbuilder/search there are now over 9,800 rPath based projects so it shouldn’t be long before there are over 10,000 software appliance virtual machines that you could choose between and run on Parallels or Xen or most other virtualisation platforms !

Posted in rPath, software appliance, virtual appliance, vm | No Comments »

Red Hat RHEL, CentOS, OEL 4 & 5 SAN filesystems go readonly !

Wednesday, June 11th, 2008

Apparently there is a problem in the kernel used in Red Hat RHEL 4&5, CentOS 4&5, OEL 4&5, SUSE, Ubuntu 7 and other GNU/Linux distributions that causes EXT2 EXT3 filesystems that are residing on SANs to randomly go read-only !

However if you are using kernel 2.6.18-53.1.21+ or 2.6.22+ you should be ok !

See Red Hat

See VMware

Posted in centos, oracle enterprise, red hat, rhel, suse, ubuntu, vm, vmware | No Comments »

VirtualAppliances.net are now using Ubuntu JeOS 8.04 LTS and OVF

Tuesday, June 10th, 2008

http://VirtualAppliances.net/downloads/

VirtualAppliances.net appliances feature an upgrade to their base distribution, using Ubuntu 8.04 LTS Server Edition, which will be supported by Canonical until 2013.

All of the 32 bit Appliances are using Ubuntu JeOS (Just enough Operating System) which provides a kernel optimized for virtual appliance use.

VMware OVF (Open Virtual appliance Format) images are now available for VMware ESX and ESXi in both 32 bit and 64 bit versions.

Posted in jeos, ovf, software appliance, ubuntu, virtual appliance, vm, vm guest, vmware | No Comments »

SUN makes MySQL go virtual on Amazon EC2 cloud

Friday, May 23rd, 2008

Using MySQL Enterprise for Amazon EC2, developers can cost-effectively deliver web-scale database applications in the “cloud”, fully backed by the database experts at MySQL.

Amazon EC2 and MySQL are a great fit for organizations that want to reduce the capital expenditures and operating costs required to build out and run their IT infrastructure.

Posted in amazon ec2, vm, vm guest | No Comments »