emc

New whitepaper available: vSphere Metro Storage Cluster Recommended Practices (6.5 update)

Duncan Epping · Oct 24, 2017 ·

I had many requests for an updated version of this paper, so the past couple of weeks I have been working hard. The paper was outdated as it was last updated around the vSphere 6.0 timeframe, and it was only a minor update. I looked at every single section and added in new statements and guidance around vSphere HA Restart Priority for instance. So for those running a vSphere Metro Storage Cluster / Stretched Cluster of some kind, please read the brand new vSphere Metro Storage Cluster Recommended Practices (6.5 update) white paper.

It is available on storagehub.vmware.com in PDF and for reading within your browser. Any questions and comments, please do not hesitate to leave them here.

Playing around with EMC CloudArray on VSAN

Duncan Epping · Jun 14, 2016 ·

Today I figured I would play around with EMC CloudArray a bit on top of VSAN. It comes with a VxRail appliance by default so I figured I would check what it has to offer. For those who don’t know. CloudArray allows you to provide NFS/CIFS and Object based storage to your datacenter leveraging local storage but also integrate it with cloud storage for archival purposes. A pretty cool solution if you ask me, and could be a great way to deliver file and object services in an easy fashion on top of VSAN. (But you could also use this in your lab to serve up NFS or iSCSI etc to your lab for shared storage.)

I signed up for a trial and downloaded the OVF. Deploying it was straight forward so no need to describe that, just like any other OVF. After the boot I grabbed the IP Address (we have DHCP in our lab) and did an “https://<ip of appliance/”. Now a setup screen shows up and it allows me to configure it. Fairly simple:

Click “Setup”
Click “Next”
Ensure “Enable CloudArray Portal” is ticked and click Next
Provide your account details so that the trial license can be pulled from the CloudArray website
Create an Admin account, I used “administrator”
Accept the EULA and click Finish
That was the setup, it will congratulate you and now you can configure it further

EMC and VMware introduce VxRail, a new hyper-converged appliance

Duncan Epping · Feb 16, 2016 ·

As most of you know I’ve been involved in Virtual SAN in some shape or form since the very first release. Reason I was very excited about Virtual SAN is because I felt it would provide anyone the ability to develop a hyper-converged offering. Many VMware partners have already done this, and with the VSAN Ready Node program growing and enhancing every day (more about this soon) customers have an endless list of options to chose from. Today EMC and VMware introduce a new hyper-converged appliance: VxRail.

I am not going to make this an extremely long post, as my friend Chad has already done that of course and there is no point in repeating his blog word for word. I do feel however that VxRail truly is the best both EMC and VMware have to offer. The great thing about VxRail in my opinion is that it can be configured in anyway you like. From 6 all the way up to 28 cores per CPU, from 64GB of memory all the way up to 512GB of memory, from 3.6TB of storage all the way up to 19TB of storage. And yes that was per “node” not per appliance. And considering the roadmap, I can see those numbers increasing fast as well. Also note that we are talking “hybrid” and “all-flash” models here. I have to agree with Chad, I think that all-flash will be preferably to hybrid. The tipping point in terms of economics have definitely been reached, especially when you take the various data services in to account that VSAN has to offer.

These are the models which VCE will offer for All-Flash. Note that you can start with 3 nodes and scale up in 1 node increments.

What I think is great about VxRail is the fact (besides that it comes with vSphere and VSAN) that it comes with additional services like for instance RecoverPoint for VM (15 VMs for free per appliance), which is completely integrated with the Web Client by the way. (For those who don’t know, RecoverPoint provides sync and a-sync replication.) Or for instance S-3 compliant object storage is provided out of the box, 10TB license is included for free per appliance. On top of that there is integration built in with Data Domain.

Must be expensive right? Well actually it isn’t. Smallest configuration starts at $60k list price… Great price point, and I can’t wait for the first boxes to hit the street. Heck I need to talk Chad in to sending me one of those All-Flash models for our lab at some point.

EMC VSPEX Blue aka EVO:RAIL going GA

Duncan Epping · Feb 3, 2015 ·

EMC just announced the general availability of VSPEX Blue. VSPEX Blue is basically EMC’s version of EVO:RAIL and EMC wouldn’t be EMC if they didn’t do something special with it. First thing that stands out from a hardware perspective is that EMC will offer two models a standard model with the Intel E5-2620 V2 proc and 128GB of memory, and a performance model which will hold 192GB of memory. That is the first time I have seen an EVO:RAIL offering with different specs. But that by itself isn’t too exciting…

When reading the spec sheet the following bit stood out to me:

EMC VSPEX BLUE data protection incorporates EMC RecoverPoint for VMs and VMware vSphere Data Protection Advanced. EMC RecoverPoint for VMs offers operational and disaster recovery, replication and continuous data protection at the VM level. VMware vSphere Data Protection Advanced provides centralized backup and recovery and is based on EMC Avamar technology. Further, with the EMC CloudArray gateway, you can securely expand storage capacity without limits. EMC CloudArray works seamlessly with your existing infrastructure to efficiently access all the on-demand public cloud storage and backup resources you desire. EMC VSPEX BLUE is backed by a single point of support from EMC 24×7 for both hardware and software.

EMC is including various additional pieces of software including vSphere Data Protection Advanced for backup and recovery, EMC Recovery Point for disaster recovery, EMC CloudArray gateway and the EMC VSPEX BLUE management software and EMC Secure Remote Service which will allow for monitoring, diagnostics and repair services. This of course will differ per support offering, and there are currently 3 support offerings (basic, enhanced, premium). Premium is where you get all the bells and whistles with full 24x7x4 support.

What is special about the management / support software in this case is that EMC took a different approach then normal. In this case the VSPEX BLUE interface will allow you to directly chat with support folks, dig up knowledge base articles and even the community is accessible from within. Also, the management layer will monitor the system and if something fails then EMC will contact you, also known as “phone home”. Besides the fact that the UI is a couple of steps ahead of anything I have seen so far, it looks like EMC will directly tie in with LogInsight which will provide deep insights from the hardware to the software stack. What also impressed me were the demos they provided and how they managed to create the same look and feel as the EVO:RAIL interface.

EMC also mentioned that they are working on a market place. This market place will allow you to deploy certain additional services, in this example you can see CloudArray, RecoverPoint and VDPA but more should be added soon! Will be interesting to see what kind of services will end up in the market place. I do feel that this is a great way of adding value on top of EVO:RAIL.

One of the services in the market place that stood out to me was CloudArray. So what about that EMC CloudArray gateway solution, what can you do with that? The CloudArray solution allows you to connect external offsite store as iSCSI or NFS to the appliance. It can be used for everything, but what I find most compelling is that it will allow you to replicate your backup data off-site. The CloudArray will come with 1TB local cache and 10 TB cloud storage!

I have to say that EMC did a great job packing the EVO:RAIL offering with additional pieces of software and I believe they are going to do well with VSPEX BLUE, in fact I would not be surprised if they are going to be the number 1 qualified partner in terms of sales really fast. If you are interested, the offering will be shipping on the 16th of February, but can be ordered today!

ScaleIO in the ESXi Kernel, what about the rest of the ecosystem?

Duncan Epping · Jan 6, 2015 ·

Before reading my take on this, please read this great article by Vijay Ramachandran as he explains the difference between ScaleIO and VSAN in the kernel. And before I say anything, let me reinforce that this is my opinion and not VMware’s necessarily. I’ve seen some negative comments around Scale IO / VMware / EMC, most of them are around the availability of a second storage solution in the ESXi kernel next to VMware’s own Virtual SAN. The big complaint typically is: Why is EMC allowed and the rest of the ecosystem isn’t? The question though is if VMware is really not allowing other partners to do the same? While flying to Palo Alto I read an article by Itzik which stated the following:

ScaleIO 1.31 introduces several changes in the VMware environment. First, it provides the option to install the SDC natively in the ESX kernel instead of using the SVM to host the SDC component. The V1.31 SDC driver for ESX is VMware PVSP certified, and requires a host acceptance level of “PartnerSupported” or lower in the ESX hosts.

Let me point out here that the solution that EMC developed is under PVSP support. What strikes me is the fact that many seem to think that what ScaleIO achieved is a unique thing despite the “partner support” statement. Although I admit that there aren’t many storage solutions that sit within the hypervisor, and this is great innovation, it is not unique for a solution to sit within the hypervisor.

If you look at flash caching solutions for instance you will see that some sit in the hypervisor (PernixData, SanDisk’s Flashsoft) and some sit on top (Atlantis, Infinio). It is not like VMware favours one over the other in case of these partners. It was their design, it was their way to get around a problem they had… Some managed to develop a solution that sits in the hypervisor, others did not focus on that. Some probably felt that optimizing the data path first was most important, and maybe even more important they had the expertise to do so.

Believe me when I say that it isn’t easy to create these types of solutions. There is no standard framework for this today, hence they end up being partner supported as they leverage existing APIs and frameworks in an innovative way. Until there is you will see some partners sitting on top and others within the hypervisor, depending on what they want to invest in and what skill set they have… (Yes a framework is being explored as talked about in this video by one of our partners, I don’t know when or if this will be release however!)

What ScaleIO did is innovative for sure, but there are others who have done something similar and I expect more will follow in the near future. It is just a matter of time.