Last week, I presented at the UK National VMUG. I took the opportunity to catch up with Darren Williams (Technical Director, EMEA & APAC) of WHIPTAIL who was also presenting at the event. My first introduction to WHIPTAIL came last year when I first met Darren at another user group meeting, and I posted about their XLR8R array on the vSphere storage blog. Darren & I discussed the changes which WHIPTAIL has undergone in the past 12 months since we last spoke, including the launch of a new range of scale out storage arrays, as well as the new features…
I get a lot of questions around how the vSphere APIs for Array Integration (VAAI) primitives compare from a protocol perspective. For instance, a common question is to describe the differences between the primitives for NAS storage arrays (NFS protocol) and the primitives for block storage arrays (Fibre Channel, iSCSI, Fibre Channel over Ethernet protocols). It is a valid question because, yes, there are significant differences and the purpose of this blog post is to detail them for you.
My first introduction to Atlantis ILIO was at a User Group meeting in the UK last year. I had a chat with Jim Moyle who explained the Atlantis ILIO product to me. Their primary focus is Virtual Desktop Infrastructure (VDI) storage and performance optimization solutions. In a nutshell, the ILIO software appliance sits in the I/O path between your hypervisor and storage and does what is essentially I/O acceleration. Since the appliance sits in the I/O path, it presents an iSCSI or NFS datastore at the front-end to the hypervisor, and at the back-end, it is presented with NFS, iSCSI…
There is no doubt that Flash is hot right now. Over the past number of months, we have seen IBM acquire Texas Memory Systems (TMS), HDS unveil their own flash strategy and HP launch their all flash 3PAR P1000 array. Of course regular readers of my blog will have seen my posts about newer all flash array vendors such as Pure Storage, Violin Memory & Nimbus Data. The purpose of this post is to highlight XtremIO’s flash storage solution which was recently acquired by EMC.
Pure Storage are an all-flash enterprise storage company. I first met these guys at VMworld 2011 and was quite impressed by their product. Like many Flash Array vendors at the time, there wasn’t a great amount of vSphere integration features. However, with this latest release of Purity v2.5, Pure Storage are addressing this and more. I had a chance to meet and discuss these new features with Matt Kixmoeller & Ravi Venkat of Pure Storage recently. Not only are they now VMware-Ready certified, but they’ve got a whole bunch of integration features. Let’s have a look at the features that…
In this post, I want to call out two important matters related to the vSphere 5.1 release & EMC storage. The first is related to Round Robin Path Policy changes, and the second relates to a VMFS5 volume creation issue.
VAAI NAS introduced the ability to create LazyZeroedThick & EagerZeroedThick disks on NFS datastores. Without VAAI NAS, one can only create thin VMDKs on NFS datastores. For those of you who are using VAAI NAS plugins, there is an important note in the 5.0U1 release notes that you should be aware of. ESXi cannot distinguish between thick provision lazy zeroed and thick provision eager zeroed virtual disks on NFS datastores with Hardware Acceleration support