OneFS Upgrades Info Hub


OneFS Upgrades Info Hub




Welcome to the Dell EMC PowerScale OneFS Upgrades Info Hub. Here you can find links to important OneFS upgrade resources and product announcements.

The following sections provide an overview of the upgrade process and the documentation and resources that are required to complete each step of the upgrade process. To successfully plan for and perform a OneFS upgrade, you must follow the procedures detailed in the OneFS Upgrade Planning and Process Guide. There are two versions of this guide. Choose the version that applies to the version of OneFS that you are upgrading from:

Upgrade Planning and Process Guides


IMPORTANT: If you have a performance-sensitive workload, consult your Sales Engineer during the pre-upgrade planning process.

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OneFS upgrades require the following phases:
  1. Planning for an upgrade
  2. Pre-upgrade tasks
  3. Performing the upgrade process
  4. Post-upgrade tasks

Phase 1: Planning for an upgrade

IMPORTANT: You might need to upgrade to an intermediate verion of OneFS before you can upgrade to the desired target version. In this scenario, complete the pre-upgrade and post-upgrade steps in the OneFS Upgrade Planning and Process Guide first for the intermediate upgrade, and then again for the upgrade to the target version.


Recommended: Dell Technologies recommends that you engage the services of the Dell EMC Remote Proactive team (link requires login to Dell EMC Online Support) to assist with the upgrade process. The Dell EMC Remote Proactive team provides the expertise for a safe and smooth remote upgrade. Contact your Isilon account team for more information.

If you choose not to request this service, you must follow all of the procedures detailed in the OneFS Upgrade Planning and Process Guide.

Required documentation

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Phase 2: Pre-upgrade tasks

Before upgrading OneFS, you must complete several pre-upgrade tasks. If you don't complete these pre-upgrade tasks, there is an increased risk of failure during your upgrade.

Pre-upgrade tasks to complete: check cluster readiness, verify configuration settings, upgrade compatibility check, back up data, collect cluster data, complete or stop jobs in progress, update drive firmware, disconnect client connections, and activate a Support gateway.

Important: If your cluster is running Drive Firmware Package 1.7 or earlier, you must update the drive firmware to 1.8 or later before upgrading OneFS. For details, see ETA 193819. For the latest firmware versions and release notes, see the OneFS Uptime Info Hub.
Important: SMB1 is disabled during the upgrade process, which might cause some clients to have authentication issues. SMB1 requires NTLM authentication.


Phase 3: Performing the upgrade process

OneFS can be upgraded in one of three ways:

  • Parallel upgrades. Dell Technologies recommends using a parallel upgrade to upgrade your OneFS cluster. A parallel upgrade upgrades OneFS and restart groups of nodes in the cluster at the same time. Parallel upgrades are a fast option while still attempting to maintain client connections.
  • Rolling upgrades. A rolling upgrade upgrades OneFS and restarts each node in the cluster sequentially. Rolling upgrades are the slowest upgrade option while attempting to maintain client connection.
  • Simultaneous upgrades. A simultaneous upgrade upgrades OneFS and restarts all of the nodes in the cluster at the same time. Simultaneous upgrades are the fastest upgrade option, but all clients will lose connection.

Note: Parallel and Rolling upgrades are not available for some OneFS versions. To determine what upgrade options are available to you, see the Upgrade Planning and Process Guide.

Download the OneFS image

Perform the upgrade


Phase 4: Post-upgrade tasks

After an upgrade, you should perform a number of restoration and change management tasks to help ensure that your cluster performs and behaves as expected.

IMPORTANT: You must allow upgrade-related jobs to run to completion. After the upgrade, a number of upgrade-related jobs will continue to run for a while. These jobs might include an important Upgrade job that redistributes, or stripes, data more efficiently.

Post-upgrade tasks to complete: reestablish user privileges; restore client connections and custom settings; configure base directories for access zones; reconfigure SMB shares, home directory templates, and HDFS settings within access zones; verify Kerberos migration; update SMB auditing; re-install Aspera, and update custom scripts.

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Related knowledge base articles

The following knowledge base articles require login to Dell EMC Online Support.

  • Article 483840, ETA 483840: Isilon OneFS: Isilon OneFS: Non-UTF-8 encoded files or directories may be inaccessible to NFSv3 and NFSv4 clients after upgrading OneFS clusters from version 7.1.x or earlier to 7.2.0.0 or later
  • Article 480672, After upgrading to OneFS 8.0.0.0, clients that rely on Kerberos authentication cannot be authenticated to the cluster
  • Article 480190, After upgrading to OneFS 8.0.0.0, SMB shares and NFS exports are no longer available
  • Article 462759, Configuring sysctls and making sysctl changes persist through node and cluster reboots and upgrades


Other resources


PowerScale Info Hubs

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Article ID: SLN318833

Last Date Modified: 06/30/2020 05:44 PM

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