RHEV

August 9, 2010 | No comments

The RHEV series on VCritical wraps up for now, as the Red Hat marketing machine tones down the misleading rhetoric on their unproven virtualization product.

June 21, 2010 | 31 comments

Red Hat claims that RHEV virtual disks are stored as common files. In reality, they are obfuscated beyond recognition thanks to LVM volumes.

June 15, 2010 | 15 comments

Red Hat Enterprise Virtualization does not allow administrators to diversify storage technologies in a data center -- all hosts in a data center must choose between NFS, iSCSI, or Fibre Channel.

May 7, 2010 | 15 comments

Red Hat Enterprise Virtualization tries to save power by consolidating VMs onto fewer hosts. Unlike VMware DPM, hosts remain powered on -- still consuming significant datacenter energy. Only vSphere safely powers off unneeded hosts during off-peak periods.

May 3, 2010 | 12 comments

While VMware ESX exposes the latest performance-enhancing CPU instructions to virtual machines, Red Hat Enterprise Virtualization (RHEV) takes a more conservative approach -- downgrading all CPUs to masquerade as an old Pentium II.

April 14, 2010 | 43 comments

Red Hat Enterprise Virtualization has an HA feature -- Red Hat advertises it as equivalent to VMware HA. Take a look at the numerous deficiencies in that product that will have you laughing all the way to the datacenter - HA [ha ha].

April 12, 2010 | 28 comments

The Red Hat Enterprise Virtualization Manager is a single point of failure and the only management interface for RHEV Hypervisors. Oh, and it only runs on a physical Windows box.

April 9, 2010 | 22 comments

Red Hat Enterprise Virtualization users may opt for a full installation of Red Hat Enterprise Linux as a hypervisor host. Besides adding extra cost, RHEL KVM packages and management tools are incompatible with RHEV and must be replaced.

April 8, 2010 | 15 comments

Red Hat Enterprise Virtualization is a new competitor to VMware vSphere. After almost half a year on the market, is anyone using it?

April 1, 2010 | 10 comments

Satirical open letter to Red Hat from VMware ESX.