Legacy storage architectures do not perform very efficiently in virtual
computing environments. The very random, very write-intensive I/O patterns
generated by virtual hosts drive storage costs up as enterprises either add
spindles or look to newer storage technologies like solid state disk (SSD) to
address the IOPS shortfall.
SSD costs are coming down, but they are still significantly higher than
spinning disk costs. When enterprises do consider SSD, how it is used and
where it is placed in the virtual infrastructure can make a big difference in
how much enterprises have to spend to meet their performance requirements. It
can also impose certain operational limitations that may or may not be issues
in specific environments.
Some of the key considerations that need to be taken into account are SSD
placement (in the host or in the SAN), high availability/failover
Last September, Microsoft released some information about what customers
could expect to see in Windows 8, and at the very end of February the Windows
8 beta became available. There's been some interesting activity on the
blogosphere about it (see a good blog from Jason Perlow here).
What Are the Enhancements?
There are a couple of interesting storage enhancements in Hyper-V R3,
including VHDX, ODX, built-in deduplication, support for SMB 2.2 and the
introduction of ReSF (Resilient File System).
VHDX: Larger Capacity VHDs
In Hyper-V R2, VHDs can be up to 2TB in size, but in Hyper-V... (more)
One of the key reasons for moving to a cloud-based infrastructure is to lower
overall infrastructure costs. This is true regardless of whether you are
building an in-house (private) cloud or are a public cloud provider looking
to price your offerings competitively. Because storage comprises such a large
part of the outlay of any cloud-based infrastructure, it's an obvious place
to look for optimizations that can lower overall costs. A lower cost virtual
infrastructure gives cloud providers pricing leeway, which can be used to
either out-price competitors or to increase margins. N... (more)
There's a new segment emerging in the industry around storage hypervisors.
This is a simple idea that makes a lot of sense. We all understand the
benefits that server hypervisor technology brought to servers in terms of
utilization, flexibility and cost savings. The promise of a storage
hypervisor is to do for storage what server hypervisor technology did for
servers, providing the same utilization, flexibility, and cost savings
Keeping with the analogy, a storage hypervisor must meaningfully improve the
utilization of existing storage resources to drive lower costs an... (more)