In the world of virtualization storage it seems all we talk about lately is flash and SSD. There is a good reason for that. Traditionally, storage capacity and storage performance were directly linked. Sure, you could choose different disk capacities, but in general you needed to add capacity in order to add performance because each disk, each “spindle” could only support a certain number of I/Os per second, or IOPS. This was governed by the mechanical nature of the drives themselves, which had to wait for the seek arm to move to a different place on disk, wait for the seek arm to stop vibrating from the move, wait for the desired sector to rotate underneath the read head, etc. There’s only so much of that type of activity that can be done in a second, and in order to do more of it you needed to add more drives. Of course that has drawbacks, like increased power draw, more parts so more chance of failure, and increased licensing costs since many storage vendors charged based on capacity.
Flash memory takes most of what we know about the physics of storage and throws it away. Because there are no moving parts, the act of seeking on a solid state disk is a completely logical one. There are no heads, no sectors, no rotation speeds. It’s all the speed of light and however fast the controller can go. As such, flash memory can do enormous numbers of IOPS, and if implemented well, it decouples storage performance from storage capacity. You save power, you save data center space, you save money in licensing fees, and your workloads run faster. Continue reading SanDisk FlashSoft for VMware vSphere
Tintri Sets a New Bar in Storage: Tintri announced the next generation Tintri VMstore T600 series that has the capability to support twice the number of virtual machines per system when compared to the previous generations. In addition to the new T600 series, Tintri also announced the new Tintri Global Center, which is a new platform that enables global scaling of multiple Trintri VMstore systems and will seamlessly function as one global unit. Continue reading Tintri Sets a New Bar in Storage
As the SSD invasion of the data center continues unabated, we are seeing more host-side caching solutions emerge. These solutions purport to be easier and way less expensive to implement than array-side SSD and flash, and they promise decent performance gains. The Proximal Data AutoCache is one of these products. Continue reading Proximal Data AutoCache 2.0
On the 9/5 Virtualization Security Podcast we discussed Hyper-V Security and were joined by Alex Kibkalo, a former senior architect at Microsoft who works as a Director of Product Management in 5nine Software. 5nine Software has developed the first introspective virtualization security device for Hyper-V. Introspective security has been missing from Hyper-V for a number of years, while it was possible to implement, the market has been so small that is was not feasible until now. Which implies Hyper-V is gaining adherents so has a need for better security measures. Continue reading Hyper-V Security: 5nine Software
Just entered my mailbox, there is a new rev of the vSphere 5.1 hardening guide which was spoken about on the last Virtualization Security Podcast. This version of the hardening guide adds a much needed new feature: Profiles. Profiles define the level of security requirements based on small and medium business, enterprises, and government agencies. There is a public review for the guide over the next two weeks, so if you want to comment or read the latest draft of the vSphere hardening guide please visit http://communities.vmware.com/docs/DOC-22783. Continue reading News: Public Comment for VMware Hardening Guide
Does your hardware keep up with technology? Technology advancements have been and are moving at an incredible pace with new and exciting features getting added with each new release or update of a product. Unfortunately, technology can outpace are physical hardware which can leave us in a true troubleshooting nightmare. There is one specific example that I have seen a few times and is worth sharing. Continue reading Does Your Hardware Keep Up With Technology?