Storage

98 posts

NVMe and NVMe-oF 101 with SNIA: queues everywhere!

SNIA dictionaryDr. J. Metz talked with us about NVMe at Storage Field Day 16 in Boston. NVMe is rapidly becoming one of the new hypes in the storage infrastructure market. A few years ago, everything was cloud. Vendors now go out of their way to mention their array contains NVMe storage, or is at the very least ready for it. So should you care? And if so, why?

SNIA’s mission is to lead the storage industry worldwide in developing and promoting vendor-neutral architectures, standards and educational services that facilitate the efficient management, movement, and security of information. They do that in a number of ways: standards development and adoption for one, but also through interoperability testing (a.k.a. plugfest). They aim to help in technology acceleration and promotion: solving current problems with new technologies. So NVMe-oF fits this mission well: it’s a relatively new technology, and it can solve some of the queuing problems we’re seeing in storage nowadays. Let’s dive in!

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CloudIQ is looking out for your storage system’s health

A few week ago we visited Dell EMC in Boston for Storage Field Day 16. Susan Sharpe presented CloudIQ to us. If you’re unfamiliar with CloudIQ: it keeps track of your storage system performance, health, capacity and notifies you in case of any anomalies. If you’ve got a Dell EMC Unity storage system, you can already use it for free. And it’s also being actively developed, so expect many new features to come into production over time!

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I’m shipping up to Boston for Storage Field Day 16

Taking the train to AMS for Storage Field Day 16Yes, I’m sorry about the title too. But also glad to announce I’m shipping up to Boston for Storage Field Day 16 this week! Just ignore the fact I’m not on a ship but on a train for now, and all should be well… Next stop is AMS, then a direct flight to BOS. It’s going to be a slightly shorter, two-day Storage Field Day this time around. But that doesn’t mean we’re going to receive a lot less content!

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Dell Technologies World 2018: Make it Real

Dell Technologies World 2018Last week I’ve attended Dell Technologies World 2018 in Las Vegas. I was invited by Dell Technologies via the influencer program, which basically means we get access to the same content as the press or analysts. I’ve spent the weeks alternating between general keynotes, briefings, interviews and catching up with friends and colleagues. In this post I’ll try and summarize some of the main topics of the Dell Technologies World 2018, focusing on what appealed most to me.

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Why move to one cloud, if you can move to a multi cloud?

Scality Zenko multi cloudMoving to the cloud comes with many advantages. There’s the obvious advantages: if you put all your servers or services in the public cloud, you do not need your own datacenter. Provisioning rates are typically pretty fast, so this improves the time needed to spin up a new service. Plus pretty much every cloud is based on a “pay as you use/grow” billing model, giving you predictable costs.

Different public cloud providers charge different prices for services. So what if you could use the best value components from each cloud provider? Say hello to the multi cloud.

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XtremIO X2: easier scaling, fewer cables and metadata aware replication

Storage Field Day 14 VMAX and XtremIO X2The Dell EMC High-End Systems Division talked about two systems. First about the VMAX All Flash, and later about the XtremIO X2. This post is about  the latter one. The XtremIO X2 builds upon the foundation of the original “old” XtremIO, but also does a couple of things differently. This post will explore those difference a bit, and will also talk about asynchronous and synchronous replication.

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VMAX All Flash: Enterprise reliability and SRDF at <1ms latency

Storage Field Day 14 VMAX and XtremIO X2Back in October we visited Dell EMC for a few Storage Field Day 14 presentations. Walking into the new EBC building we bumped into two racks. One with a VMAX all flash system and another with a XtremIO X2. Let’s kick off the Storage Field Day 14 report with VMAX All Flash. There’s still a lot of thought going into this enterprise class storage array…

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RecoverPoint Connect Cluster wizard: Internal Error, contact support

RecoverPoint boxToday I visited a customer to connect two RecoverPoint clusters. One RecoverPoint cluster is connected to a Unity array, the other to a VNX. After installing both clusters, we ran the RecoverPoint Connect Cluster wizard and were greeted with an “Internal Error. Contact support” error message. Awesome! Fortunately it turned out to be a pretty basic error which was easy to fix. A short story about RecoverPoint installation types in mixed-array configurations…

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Isilon Tech Refresh – Replacing old NL400 Isilon nodes for NL410’s

Last month I’ve performed a Isilon tech refresh of two clusters running NL400 nodes. In both clusters, the old NL400 36TB nodes were replaced with 72TB NL410 nodes with some SSD capacity. First step in the whole process was the replacement of the Infiniband switches. Since the clusters were fairly old, an OneFS upgrade was also on the list, before the cluster could recognize the NL410 nodes. Dell EMC has extensive documentation on the whole OneFS upgrade process: check the support website, because there’s a lot of version dependencies. Finally, everything was prepared and I could begin with the actual Isilon tech refresh: getting the new Isilon nodes up and running, moving the data and removing the old nodes.

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Linux 101: Extend root partition of an InsightIQ VM

InsightIQ old free spaceWhile upgrading OneFS it’s important to keep the InsightIQ software version compatible with the Isilon systems. In this case, InsightIQ wasn’t updated for a while and I had to upgrade from 3.0 -> 3.1 -> 3.2 -> 4.x. The actual upgrade process isn’t too hard (it just takes a lot of time), but there’s one little prerequisite in the 3.1 -> 3.2 upgrade: a minimum free space in the root partition of 502MB. As you can see in the screenshot, I wasn’t even close to the minimum requirement. I got to 357 MB, and that’s after cleaning up redundant stuff. Time to add some more disk space and extend root partition!

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