Category Archive for: ‘Primary Storage’

Storage Efficiency and HCI Cluster Size

Storage Efficiency

In this episode of As the Cluster Turns we’re going to look at how HCI cluster size impacts the storage component of an HCI solution. While My Google Sheet from part one compared clusters with the same total SSD capacity that analysis ignored data protection and the impact of cluster size on data protection efficiency. Reviewing HCI protection HCI systems …

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VVols, and the Market, are ready. Why Do I Want Them?


In our last installment we saw that over the past three years, the storage industry (OK, most of them), VMware, and customers have laid the groundwork for a transition from VMFS to VVols. Here’s why you’ll want to make the switch. VVols, VMware’s Virtual Volumes, store each virtual machine, in fact each virtual disk .VMDK file and a bit more, …

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NOW is the time to give VVols another look


We tech industry pundits are a bloodthirsty lot. We declare old technologies like tape or hard disks dead when newer, faster, shinier alternatives come along. We aren’t any easier on new technologies; we’re ready to label fresh products such as Intel’s 3DXpoint or VMware’s VVOLs a failure if they haven’t broken sales records in their first two years on the …

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Eliminating the Analytics Data Silo

Small Business Data Silos 845x321

For budgetary, and risk management, reasons many technologies, like VDI or the subject of today’s blog post big data analytics, enter most corporate data centers as stand-alone islands, complete with dedicated compute, storage and all too frequently rows of racks. The problem with islands, of course, is the cost of moving data back and forth between these islands and the …

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Public Cloud Needs a Data Fabric


Public cloud services like Amazon Web Services (AWS) provide elastic environments for cloud native applications that use its Aurora or DynamoDB database services and EC2 compute instances. When it comes to storage, however, the storage service silos in the public cloud are if anything taller than in a corporate data center even if they’re hidden in the cloudy mists. A …

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Hard Drive Evolution – Part I

Evolution Of Man

Since RAID was originally designed to parallelize disk drives for performance and resiliency, it seems pretty obvious that data protection techniques like RAID are constrained by the technology of the disk, and later solid state, drives they protect. It seems appropriate at this point to take a brief detour from explaining how we protect data from problems with disk drives …

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All About Data Protection – Part One Where Did RAID Come From?


Just about all modern data protection schemes divide data into some arbitrarily sized block. Then, they either duplicate that block across multiple storage devices, or store portions of that data block, which we’ll call strips, in stripes across multiple storage devices, with one or more additional strips in each stripe containing parity or other erasure code data. Those are pretty …

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Unifying Sync ‘n Share

Like most people nowadays I use sync ‘n share services as a central part of my work process. I even wrote a blog post describing the process I used to synchronize my supplemental dictionaries between the various PCs I use on a regular basis. While SnS is a great solution to my personal file problems, DeepStorage Labs still needs more …

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Why Primary Deduplication Is A Different Animal From Backup Dedupe

A decade ago, storage admins took a chance on purpose-built backup appliances (PBBAs) (Insert link to Take a chance on me) and the magical technology that made them cost effective for data deduplication. It took a few years to convince the tape huggers (except maybe Jon Toigo) but the Society of Steely-Eyed Storage Professionals has acknowledged that deduplication is safe …

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