Archive for May, 2015

EMC Isilon OneFS upgrade content updates

Kirsten Gantenbein

Kirsten Gantenbein

Principal Content Strategist at EMC Isilon Storage Division
Kirsten Gantenbein
Kirsten Gantenbein

When planning for an Isilon OneFS upgrade, there are many documents you can reference. We recently conducted research to learn how these documents help EMC Isilon customers and employees through the OneFS upgrade process. Based on our findings, we made some changes to Isilon OneFS upgrade content that we want to share with you.

OneFS Upgrade Info Hub

To help you find OneFS upgrade documents more quickly, please visit the new OneFS UpgradesInfo Hub. An info hub is a web page on the Isilon Community that serves as a nexus of useful content related to a specific topic. The OneFS Upgrades – Info Hub will be refreshed frequently with new and relevant information, so check this web page often.

OneFS upgrade readiness checklist archive

The content from OneFS Upgrade Readiness Checklists (from OneFS 6.5 through OneFS 7.2 versions) have been merged with the Upgrade Planning and Process Guide. If you bookmarked a link to a OneFS Upgrade Readiness Checklist in the past, you’ll now be redirected to this message.

OneFS Upgrade Readiness Checklist Archive

Our main goal is to reduce the number of documents you need to refer to when planning for a OneFS upgrade. By merging these checklists with the definitive Upgrade Planning and Process Guide, we’re creating a single reference to help you through the entire OneFS upgrade process.

The Upgrade Planning and Process Guide can be applied to any version of OneFS. Because this is a long document, we’ll be incorporating changes over time to help make it easier to navigate. For example, we’ll include a checklist at the beginning of the guide, which is linked to corresponding sections for more information.

If you have feedback about these content updates, please leave a comment or send an email to


Introducing the EMC Isilon External Network Connectivity Guide

Risa Galant

Risa Galant

Principal Technical Writer at EMC Isilon Storage Division
Risa Galant

Latest posts by Risa Galant (see all)

Ever wonder about the best way to set up communication between Isilon clusters and external client applications? Maybe you’d like to learn about Isilon network topology and how IP routing works in OneFS 7.1, or what the best practices are for using source-based routing in OneFS 7.2. Perhaps you’re curious about considerations around Isilon technology refreshes, or what to tell your client system administrators about DNS settings.

We’ve got just the content for you! Check out the EMC Isilon External Network Connectivity Guide: Routing, Network Topologies, and Best Practices for SmartConnect. (You’ll need to log in to the EMC Online Support site to view it.) Developed as a collaborative effort between Isilon Information Development and Isilon Professional Services, the Isilon External Network Connectivity Guide’s scenario-driven content covers your favorite Isilon external networking topics.  Be aware, though, that it isn’t a tutorial. The guide reviews Isilon networking basics, but assumes that as a network or storage architect or administrator, you’re already familiar with general networking concepts and terms.

Here are some highlights from the guide:

  • An easy-to-consume table to help you choose the best load balancing policy for your environment
  • Guidelines for keeping your Isilon cluster running efficiently
  • DNS setting recommendations to pass along to your client system administrators to help ensure that client connections stay fresh
  • Common questions and answers about Isilon in-band network management
  • Guidelines for calculating the number of IP addresses you’ll need for planning your network architecture
  • An illustrated, scenario-based walkthrough that introduces you to the wonders of dynamic SmartConnect zones and IP addresses
  • Recommended strategies for network design for specialized workloads from different industries, such as media and entertainment
  • Best practices for ensuring cluster stability, data integrity, and optimal network performance
  • Another easy-to-consume table describing common data unavailable causes and preventive actions you can take
  • Planning guidelines for technology refresh cycles
  • Recommended IP allocation strategies for SmartConnect Advanced listed by protocol
  • An illustrated discussion of network routing in OneFS 7.1
  • Another illustrated discussion of source-based routing (SBR) in OneFS 7.2, with a bonus discussion of destination-based routing just for comparison

SBR diagram by Andrew Chung

The guide also covers how best to use SyncIQ and SmartConnect Advanced for backup and disaster recovery planning. In fact, there’s a whole section covering SmartConnect best practices. Learn how SmartConnect works, what to check if you have firewalls, and what practices to avoid.  And if you’ve ever wondered how Isilon and SmartConnect handle DNS delegation, the Isilon External Network Connectivity Guide is the guide for you.

As if that weren’t enough information about SmartConnect, there are more scenario-based descriptions of hot networking topics such as where the SmartConnect service runs, what happens when you replace nodes while SmartConnect is active, and how to use SmartConnect in an isolated network environment.

Pretty comprehensive, huh? That’s the idea: to provide an all-inclusive guide to Isilon external network connectivity. We hope that this will be your go-to guide for getting answers to your Isilon external networking questions. It’s sort of a “how to hook up with an Isilon cluster” guide.

You’ll find the guide on EMC Online Support here: EMC Isilon External Network Connectivity Guide. Note that you’ll need to log in to the support site to access it. Let us know what you think!

Start a conversation about Isilon content

Have a question or feedback about Isilon content? Visit the online EMC Isilon Community to start a discussion. If you have questions or feedback about this blog or comments about the video specifically, contact us at To provide documentation feedback or request new content, contact


New EMC Isilon support content for March and April 2015

Kirsten Gantenbein

Kirsten Gantenbein

Principal Content Strategist at EMC Isilon Storage Division
Kirsten Gantenbein
Kirsten Gantenbein

I took a short hiatus last month from posting about new content in March. I’m making up for it in this post, which includes new EMC Isilon customer support content for both March and April. Each month I’ll post a summary of newly published content for Isilon customers, as well as the top 10 most viewed knowledgebase articles.

New Isilon support content

Here are new customer support documents that were published in March and April 2015. For example, you’ll find new Info Hubs on the Isilon Community and new KB articles. Login to the EMC Online Support site is required for all content except Isilon Community content and videos.



ClusterTalk Podcast Episode 2
Isilon Community (ECN) Info Hub OneFS Upgrades
Isilon Community (ECN) Info Hub OneFS 6.5 Upgrade
Isilon Community (ECN) Info Hub SyncIQ
Isilon Community (ECN) Blog SmartPools Storage Pool Changes and New Files
Isilon Community (ECN) Blog Routing and Isilon, how to get from A to B and back again
Isilon Community (ECN) Blog Tiering Snapshots
Isilon Community (ECN) Blog SmartPools Tiering and Legacy File Pool Policies
Isilon Community (ECN) Blog SmartDedupe – Behind the Curtain
Isilon Community (ECN) Blog OneFS Hardware Fault Tolerance
Isilon Community (ECN) Blog Hacker How-To Series: Cluster Capacity
Isilon Community (ECN) Blog OneFS SmartPools – Storage Pools Taxonomy
Isilon Community (ECN) Blog Exploring OneFS Storage Protection Overhead
Isilon Community (ECN) Blog OneFS Job Engine Job Progress Reporting
Isilon Community (ECN) Blog OneFS Node and SSD Compatibility
Flowchart Isilon OneFS Upgrade Process Flowchart
Guides Business Data Lake Protection 1.0 Integration Guide 
KB Article OneFS SMB and Authentication Rollup Patches (196928)
KB Article Editing File Pool policies in gives an error “Invalid storage pool” (191356)
KB Article Patches to provide pre-upgrade configuration checks for OneFS 6.5.4 and – upgrades to OneFS 7.0 or 7.1 (88716)
KB Article ETA 193819: EMC Isilon nodes: Mars-K+ drives may stop responding and be automatically smartfailed from Isilon nodes (193819)
KB Article OneFS SNMP monitoring with Nagios fails when using an Isilon-specific Nagios configuration file (199833)
KB Article EMC Isilon InsightIQ Security Vulnerability for GNU C Library Buffer Overflow (GHOST) Vulnerability (197620)
White Paper Isilon External Network Connectivity Guide – Routing, Network Topologies, and Best Practices for SmartConnect 
Release Notes (Updated) OneFS 7.1.1 MR Release Notes 
Release Notes (Updated) OneFS 7.2.0 MR Release Notes 
Release Notes (Updated) OneFS 7.2.0 Release Notes 

Most viewed knowledgebase (KB) articles

Check out April’s top 10 most viewed KB articles.

  1. OneFS SMB and Authentication Rollup Patch (196928)
  2. OneFS SMB and Authentication Rollup Patch (174372)
  3. OneFS: How to safely shut down an Isilon cluster prior to a scheduled power outage (16529)
  4. Best practices for NFS client settings (90041)
  5. OneFS SMB and Authentication Rollup Patch (172623)
  6. How to configure Windows DNS for SmartConnect zone (183530)
  7. How to reset the CELOG database and clear all historical events (16586)
  8. How to create SPN accounts to allow Kerberos authentication using SmartConnect DNS (16528)
  9. How to create a bootable image (16691)
  10. How to reimage a node using a USB flash drive (16582)


Tell us what you want to know! Contact us with questions or feedback about this blog at To provide documentation feedback or request new content, contact