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What is an IOP and why do I care...disk math, and does it matter?

[fa icon="pencil'] Posted by Lewan Solutions [fa icon="calendar'] June 14, 2015 [fa icon="tags'] VMware, Data Storage, NetApp, Cisco, Disk Performance, Nimble Storage

I'll start by answering the title question first. IOP is an acronym standing for Input Output Operation. It does seem like it should be IOO, but that's just not the way it worked out.

A related fact to note: we generally talk either about total IOPs for a given task, or we talk about a rate - IOPs per Second typically, noted as IOPS with a capital "S". And with that, the Wikipedia portion of today's discussion is complete. Let's move on to why we care about IOPs...

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Benefits of Cisco ACI vs. a Traditional SDN Architecture

[fa icon="pencil'] Posted by Lewan Solutions [fa icon="calendar'] April 29, 2015 [fa icon="tags'] Virtualization, Data Storage, Cisco

Cisco ACI, Cisco’s software-defined networking (SDN) architecture, enhances business agility, reduces TCO, automates IT tasks, and accelerates data center application deployments.

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A Brief History of Disk Storage

[fa icon="pencil'] Posted by Lewan Solutions [fa icon="calendar'] April 2, 2015 [fa icon="tags'] Data Storage, Disk Performance

I've told several groups I've spoken to recently that "disk storage hasn't gotten faster in 15 years". Often that statement is met with some disbelief. So let me explain my reasoning...

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Lewan's Denver Data Center achieves 13 years of continuous uptime

[fa icon="pencil'] Posted by Scott Pelletier [fa icon="calendar'] December 29, 2014 [fa icon="tags'] Managed Services, Data Storage, FORTRUST, Cloud Computing

Press Release: FORTRUST Celebrates the Longest Uptime Period in the Rocky Mountain Region

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Export SPCollect Logs from VNX Unisphere GUI

[fa icon="pencil'] Posted by Lewan Solutions [fa icon="calendar'] March 25, 2014 [fa icon="tags'] Data Storage, How To Guide

When working with EMC support, it may become necessary to export and upload SPCollect logs from your array and send to the EMC support team. Below is an easy way to obtain the requested SPCollect information.

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How to Fix Invalid/Greyed Out Virtual Machines in VMware vSphere Client

[fa icon="pencil'] Posted by Lewan Solutions [fa icon="calendar'] December 23, 2009 [fa icon="tags'] Virtualization, VMware, Data Storage, How To Guide, Networking, Disk Performance, VMware vSphere, VMware vCenter

If there are disk array or networking issues in VMware ESX 3.x or vSphere, some virtual machines (VMs) may appear in the vSphere Client as being Invalid and are greyed out. The following steps will fix this issue.

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SAS vs. SATA Differences, Technology and Cost

[fa icon="pencil'] Posted by Lewan Solutions [fa icon="calendar'] September 14, 2009 [fa icon="tags'] Data Storage

Updated 2/4/13
One of the resources at HP (thanks Ben!) made the following comment to one of our customers and I thought it'd be a perfect post for the blog as it contains some useful information that some might not be aware of.

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How To Collect Data From a Fibre Channel (FC) Switch

[fa icon="pencil'] Posted by Lewan Solutions [fa icon="calendar'] June 15, 2009 [fa icon="tags'] Data Storage, How To Guide

Sometimes you will be asked by either the manufacturers support or perhaps by Lewan for data from your Fibre Channel switch. Here is how you can gather that information in a format that helps support and/or Lewan:

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