Virtual computing
Virtual and distributed computing technology and applications

Ken Novak's Weblog


daily link  Thursday, March 22, 2007


IDC: Server shipments slow on spread of virtualization:  "Growth in the x86 server market revved slightly in Q4 2006, growing 7.0% in the quarter to $7.2 billion worldwide, its fastest growth rate in five quarters, but unit shipment growth continued to moderate with growth at 1.1% year over year, to 1.85 million servers as customers continued to consolidate their IT infrastructures, .. "For the first time in more than 10 years, average selling values in the quarter increased year over year as IT managers move to consolidate IT workloads. This shift toward a shared compute infrastructure is driving additional scalability, memory attachment and I/O needs, which in turn, lead to higher average selling values." ..

Microsoft Windows servers .. revenue grew 9.4% and unit shipments grew 5.1% year over year. Quarterly revenue of $5.3 billion for Windows servers represented 34.9% of overall quarterly factory revenue, the single largest revenue segment in the server market, IDC reported.

After two consecutive quarters of single-digit revenue growth, Linux server revenue growth accelerated once again, growing 15.3% to $1.8 billion when compared with Q4 2005. Linux servers now represent 11.9% of all server revenue, up more than one point over Q4 2005. But Linux server shipments declined 0.8% year over year after 18 quarters of double-digit shipment growth, as IT consolidation extends its reach into the open source domain...

Unix servers experienced 2.8% revenue growth year over year when compared with Q4 2006. Worldwide Unix revenues were $5.1 billion for the quarter, representing 33.5% of quarterly server spending."  Itanium, z/OS and blades sold about $3.5B combined."
  10:38:40 PM  permalink  


daily link  Friday, March 16, 2007


The Globus Consortium Journal: Overview of Virtualization Technology in Distributed Computing workshop.  "Among the highlights was an interesting paper from Intel dissecting the performance of Xen networking. A wonderful adoption scenario was represented in the work from the University of Marburg where suspend/resume properties of VMs are being used to improve backfill strategies in the local scheduler - computations running in VMs are simply suspended when a large parallel job is scheduled to run and resumed afterwards. The remarkable part of this work was that it was very much requirement-driven and has been voted into production by users. Another interesting talk came from the Australian Partnership for Advanced Computing (APAC) described their experiences using virtual machines in production Grids for a couple of years now."
  11:20:49 PM  permalink  

Clone your Active Directory in 12 minutes using VMWare:  Short instructions.
  4:18:11 PM  permalink  

TechComparison - Linux Virtualization Wiki:  Interesting comparison chart of virtualization technologies.  Also: a story of a satisfied Xen user.
  4:17:31 PM  permalink  

When to use VDI, when to use server-based computing, and how the Citrix Ardence dynamic desktop fits into all this:  Long and thorough article comparing the different desktop models.  Also profiles Ardence virtual disks, an "iSCSI-lite" for non-persistent disks that can be delivered for PXE boot as well as run time read. 
  3:38:42 PM  permalink  

Copyright 2007 © Ken Novak.
Last update: 3/22/2007; 10:40:03 PM.
0 page reads.