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April 24, 2017


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Andrew Carr

Hi Chad I don't want to add to your frustration but when we talk about HCI we should also talk about XC Nutanix and Azure Stack.

Positioning the whole portfolio is a great neutral, open conversation to have with a customer.

Howard Marks (@DeepStorageNet)


I know it was a customer tweet so you have some latitude but I have a sneaking suspicion that 2TB SSD wasn't nearly full. Rebuilding 2TB in 98sec is 20GB or 160Gbps.

If that was a full SSD it would have to be a large cluster with 40Gbps Ethernet to rebuild that fast without bottlenecking on the network or PCIe bus within a node.

It's a great line but you know the devil is in the details.

Josh G

I have been equally frustrated as a customer; because of Legacy EMC sales staff that ONLY want to peddle VMAX and Unity I have found myself only dealing with the specialists. The fact of the matter is that no matter what you do, some legacy sales staff will not adapt and get with the program. It is time to trim these older/un-adaptable individuals from the company and bring on fresh talent. I don't care how much VMAX they still sell; they are causing more harm than good.

David Holmes

Disclosure - DellEMC Employee

This is a great post. I've seen the same in the field as well. The key IMHO is to address the "if this then that" mentality. e.g. "if VMWare then (always) VSAN, if Enterprise Block then (always) VMax, if unstructured then (always) Isilon etc. etc." You have a great way of articulating the portfolio so that you don't back yourself into a corner. If more people started sentences with "assume that" and "choose ... based on" they would then have the latitude to help customers make the right choices....



Former team member and now competitor, so I hope you don't see this as a troll...I am genuinely interested. It always seemed like ScaleIO was missing the ability to monitor latency and it still seems visibly missing.

Three legs of storage experience: IOPs, Latency, Bandwidth...some of the posted IOPS are impressive, no question, but determining if it is a fit for customer architectures without the app experience in latency, kinda not really a full picture.

Curious how customers are navigating these differing architectures without all the visibility of latency as it relates to app delivery...perhaps I missed an update (honestly do not follow it much) where this is now in the management experience. If so, sorry for the spam! Hope you and the family are awesome!



@Howard Marks (@DeepStorageNet) - Actually, because of the high level of parallelism, that cluster need only be 8-10 nodes to realistically talk about rebuilding a 2TB SSD in under two minutes.

Remember that, during a rebuild, the entire protection domain participates in the rebuild operation, requiring only a fraction of that '160Gbps' to come from each node to execute the rebuild.

Also remember that any participating node has a certain quantity of the rebuild data, so each node is only sending a small portion of the data requiring re-protection.

If you have not seen this in action, you should ask for a demo from your DEMC account team, because it's staggering to watch a small number of nodes and SSDs rebuild at astounding rates.

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