Archive for the ‘Uptime Bulletin’ Category

Troubleshooting, anyone?

Risa Galant

Risa Galant

Principal Technical Writer at EMC Isilon Storage Division
Risa Galant

Latest posts by Risa Galant (see all)

Looking for Isilon troubleshooting information? We’ve got some great resources for you! Read on.

EMC Isilon Customer Troubleshooting Guides

We’re very pleased to announce the availability of the first set of new EMC Isilon Customer Troubleshooting Guides! These guides provide step-by-step troubleshooting instructions to help you solve issues that may affect Isilon clusters, or to walk you through the steps needed to gather important data to help EMC Customer Support solve your problem quickly.

The initial set of guides covers a wide range of topics including Isilon hardware, networking, protocols, upgrades, authentication, cluster configuration and administration, capacity, quotas, and more!

Visit the Customer Troubleshooting Guides Info Hub for the latest list of published guides. More guides are coming soon!

As we go to press, the following guides are available:

Uptime Info Hub: Best Practice Troubleshooting Information

You can also find best practice troubleshooting information on the Uptime Info Hub. Topics include:

  • Advanced troubleshooting of an Isilon Cluster: a 7-part series covering everything from checking free disk space to managing protocol issues, permissions and access, and managing hardware events
  • OneFS L3 cache performance and best practices
  • Cluster relocation planning considerations
  • The benefits of upgrading to Target Code
  • Best practices for working with Snapshots

And much more.

Check out these troubleshooting resources and let us know what you think. Email us at with your feedback. And thank you!

The EMC Isilon Uptime Bulletin, reinvented

Kirsten Gantenbein

Kirsten Gantenbein

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

When we launched the EMC® Isilon® Uptime Bulletin in 2013, each issue was published in a PDF format that could be downloaded from the EMC Online Support site. Because the Uptime Bulletin contains timely information, such as OneFS target code, tips, and the latest firmware releases, we wanted to deliver this information to our customers in a more direct way.

Beginning this year, new Uptime Bulletin content is published to the Uptime Information Hub on the Isilon online community. You can now locate useful information about best practices, OneFS patches, and the latest OneFS and firmware releases, at a glance. The Uptime Information Hub is continuously updated with new information. So be sure to bookmark this page and check it regularly.

New uptime OneFS topic articles

Every quarter, we develop Uptime Bulletin articles that offer tips and best practice information about using OneFS. Here is a summary of new articles that you can now read on the Uptime Information Hub.

  • OneFS MRs and How We Drive Continuous Improvements

    Todd Dillon

    Todd Dillon, Senior Director of Software Engineering, explains how Isilon Storage Division uses the EMC Total Customer Experience process to triage every customer-impacting event in OneFS that happens worldwide. Learn how this three-phase process helps to drive continuous improvements with quality assurance (QA) and how maintenance releases (MRs) are determined.

  • Planning OneFS Upgrades with Global Namespace Acceleration (GNA) Nodes
    GNA is a OneFS feature that helps you increase performance by using solid state drives (SSDs) to store metadata for read-only purposes. If you use the GNA feature and are planning to upgrade to OneFS 7.0 and later, there are important considerations you need to make. Learn how to verify that your cluster meets minimum requirements for GNA before you upgrade.
  • Performance Monitoring and Planning
    uptime performance article
    Basic performance measurement knowledge of your current Isilon cluster can help you in understanding how adding new volumes or workloads will impact performance. This article walks you through how to perform a workload analysis, and provides best practice information about when to perform this type of analysis.

If you have article feedback or comments, please leave a comment on the Isilon community.  You can also review the PDF versions of past issues of the Uptime Bulletin by visiting the EMC Online Support site.

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, contact us at To provide documentation feedback or request new content, contact


No fooling: A new issue of the EMC Isilon Uptime Bulletin

Kirsten Gantenbein

Kirsten Gantenbein

Principal Content Strategist at EMC Isilon Storage Division
Kirsten Gantenbein
Kirsten Gantenbein
Download the latest issue from EMC Online Support site:

Download the latest issue from the EMC Online Support site:

A new issue of the EMC® Isilon® Uptime Bulletin is now available on the EMC Online Support site (requires login).

Each quarter, the EMC Isilon Uptime Bulletin describes some of the best practices to help you achieve the highest level of operational reliability for your Isilon environment. The latest issue of the Uptime Bulletin covers the following topics:

  • Benefits of the Isilon OneFS Job Engine
    The Job Engine is the OneFS work distribution system. Learn how the Job Engine can make routine cluster maintenance easy and efficient.
  • Best practices for working with snapshots in OneFS
    Snapshots are used to protect data against accidental deletion. Learn best practices that can help improve snapshot management in OneFS.
  • Recommended releases of OneFS
    Get links to the release notes for the latest recommended release versions of OneFS 7.0, 6.5, and 6.0.
  • The latest firmware package releases
    Review the following firmware package release information:

    • Supported drives in drive firmware package 1.6
    • Supported storage platforms in node firmware package 9.0.1

The EMC Isilon Uptime Bulletin is published at the end of each quarter. If you have any suggestions or requests for the next issue, email

A new issue of the EMC Isilon Uptime Bulletin is available

Kirsten Gantenbein

Kirsten Gantenbein

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

It’s a new year! And a new issue of the EMC Isilon Uptime Bulletin (Volume 1, Issue 2) is now available on the EMC Online Support site (log in required). This issue of the engineering newsletter includes the following:

  • A welcome message from John Hayden, Vice President of Engineering, Isilon Storage Division
  • Articles:
  • Recommended Isilon OneFS releases
  • Latest firmware package releases

What do you want to see in 2014?

Have any feedback or thoughts about what you would like to read about in the ISI Knowledge blog in 2014? Email us at

Happy New Year!

What to consider when planning a cluster relocation

Kirsten Gantenbein

Kirsten Gantenbein

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

Moving an EMC Isilon cluster to a new location, whether it’s in your current building or several miles away, can be complicated. If you’re considering a physical move of your cluster, contact your Isilon account representative to have EMC Professional Services help you with the entire process, from planning to reinstalling your cluster at the new location.

This article highlights three important factors to consider before planning your move.


An EMC Project Manager will be assigned to manage your cluster relocation project. Once the project is underway, it’s recommended that you allow at least a four-week window in which to plan and perform your move. Four weeks before the move, you should work with your Project Manager to confirm moving dates, document the serial numbers of all nodes and InfiniBand switches, and determine the shipping packing materials that you might need.

If you want to make configuration changes to the cluster or use new IP addresses at the new location, start planning for how you want the cluster to be reconfigured. An EMC Solutions Architect can assist with this discussion about planning a cluster relocation, and gather the necessary information. Two weeks before the move, you should perform a cluster maintenance check and back up your data. After the move is complete, EMC engineers to reinstall and validate your cluster you should factor in time for.

Site preparation

To help plan for the cluster relocation, read the Isilon Site Preparation and Planning Guide, available through the EMC Online Support site. This guide will help you prepare the destination site for the cluster, and provides guidelines about the following site requirements:

  • Power
  • Square footage
  • Level floors
  • Temperature and humidity
  • Network capacity
  • Cabling
  • IP addresses and cluster configuration
  • Rack space

If you have the original Isilon shipping boxes, they can be used for the cluster relocation. Otherwise, two weeks before the move, your account representative will order Isilon-approved shipping boxes for the move. At this time, you should confirm that the new location will be ready to accept the cluster shipment and has the space and infrastructure necessary for unpacking and reinstalling your cluster.

Data backup and cluster health validation

It is critical to back up your data to a secure location before the move. It is also important to validate your cluster’s health to address any issues before the move. You can open a Service Request (SR) for EMC Isilon Technical Support to review your logs and validate your cluster’s health before the move. Alternatively, a Solutions Architect or Project Manager can assist you with opening the SR.

Both of these steps should be done during a two-week maintenance window preceding the move.

For more information

Professional Services has the expertise to ensure that your cluster move goes as smoothly as possible. If you have questions about the EMC Isilon Cluster Relocation service, please contact your Isilon account representative.

OneFS upgrade tip from the Uptime Bulletin newsletter

Kirsten Gantenbein

Kirsten Gantenbein

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

Each quarter EMC Isilon produces a technical newsletter called the Uptime Bulletin. This newsletter provides product tips and announcements. You can access our first issue of the EMC Isilon Uptime Bulletin (PDF) on the EMC Online Support site (login required).

The first issue includes the following Isilon OneFS tip about upgrading.

Reboot your cluster before an upgrade

Before upgrading to the latest version of OneFS, it helps to be prepared. Assessing compatibility, gathering cluster information, and following best practices during the pre-upgrade window will ensure that the upgrade process goes smoothly.

One of the pre-upgrade steps that EMC Isilon recommends is to reboot your clusters. A reboot ensures a clean state for the upgrade process, and it usually takes fewer than fifteen minutes for simultaneous reboots (where all the nodes in a cluster are restarted at the same time). This recommendation is particularly applicable to clusters that have run a long time without a cluster-wide reboot event.

A cluster reboot can help you to:

  • Identify failing hardware
  • Ensure that cluster configurations, such as share and export configurations, are saved and persist through a reboot
  • Distinguish among problems that might occur either during the reboot process or during the upgrade process

Overall, a pre-upgrade reboot can make it easier for EMC Customer Services to diagnose and resolve any upgrade-related issues quickly. In an ideal upgrade window, you should also test client services after a reboot and before the upgrade. This gives you the opportunity to validate the upgrade verification tests.

For more information about the OneFS upgrade process

Visit the EMC Online Support site to access the following PDF guides (login required), which help you prepare for the upgrade process for OneFS 6.5–7.0:

If you have questions about the upgrade process, please visit the Contact EMC Technical Support site (login required) for contact information.