PowerStoreOS 4.3.1.x Service Pack and Patch Release Notes
Summary: This document describes the issues resolved in the service pack and patch releases of PowerStoreOS.
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This article is not tied to any specific product.
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Instructions
The known issues, environmental and system requirements, and installation or update considerations associated with these service pack and patch releases are the same as the parent release. For more information, see the Dell PowerStoreOS 4.3.0.0 Release Notes on the PowerStore Info Hub.
Release Revision History
| Release | Description |
| 4.3.1.0 |
|
| 4.3.0.0 |
|
PowerStoreOS 4.3.1.0 (Build: 2662695)
Resolved issues
| Issue ID | Description |
| PSSLDF-51435 | Manually licensing a PowerStore cluster using a Transformational License Agreement (TLA) license may fail with the error Failed to obtain the product registration data (0xE0D010030008) because the license type is unrecognized. |
| PSSLDF-47625 | The Dell PowerStore Plug-In for Veeam Backup & Replication may stop working after upgrading to PowerStoreOS 4.3. |
| PSSLDF-46070 | When recovering from a failed non-disruptive upgrade (NDU), performing the NDU again may cause the PowerStore cluster to incorrectly report that the upgrade ended in a Cluster Rollback state. However, the cluster is still in a failed upgrade state. |
| PSSLDF-45492 | A PowerStore system may experience authentication failures when connecting to a Data Domain system that is configured as an Encryption Disabled Project (EDP) device. |
| PSSLDF-39570 | Evicting a drive and replacing it with a higher capacity drive may cause the Data Path (DP) to restart, resulting in a Data Unavailable (DU) condition. |
| PSSLDF-39498 | If a cluster was originally deployed with PowerStoreOS 2.1 or earlier, the secondary node of an appliance may enter service mode during a non-disruptive upgrade (NDU) from PowerStoreOS 4.2.x to a later version. |
| PSSLDF-39003 | An error may occur while accessing an appliance performance chart after performing a non-disruptive upgrade (NDU) from PowerStoreOS 4.2 to 4.3. This error can occur if the charting preferences in the appliance performance chart were modified and saved while running an older version of PowerStoreOS. |
| PSSLDF-37601 | If a node on the preferred side of a Metro session goes down or reboots, the status of the Metro session may change to Fractured. |
| PSSLDF-33876 | A node may fail to boot if a non-disruptive upgrade (NDU) from PowerStoreOS 3.6 or earlier to PowerStoreOS 4.0 or later is rolled back. |
| PSSLDF-32566 | Issuing an NVMe command on a volume without valid mappings can cause the command to fail, which may lead to a Data Path (DP) failure and cause the node to enter Service Mode. |
| PSSLDF-27370 | After performing a non-disruptive upgrade (NDU) to PowerStoreOS 4.1 or replacing the internal M.2 boot module, the local NTP servers on the appliance nodes may enter an unsynchronized state when the external NTP server is inaccessible. |
Known issues
| Issue ID | Description | Workaround |
| PSSLDF-52127 | After performing a non-disruptive upgrade (NDU) to PowerStoreOS 4.3, NAS server access may be impacted when an Active Directory Restricted Groups group policy object (GPO) is used to add external users or groups as members of a local group on the NAS server. | Disable the Restricted Groups GPO and manually add the external users or groups to the local group on the NAS server using the Microsoft Management Console (MMC) snap-in. For more information, see KB article 000424100. |
| PSSLDF-35277 | In rare cases, the Historical Capacity widget on the Capacity dashboard may fail to display data when Last 24 hours is selected from the View menu. | Select a different value from the View drop-down, go to a different page and then go back to the Capacity dashboard page, or refresh the Capacity dashboard page. |
| PSSLDF-32866 | When Windows Server Failover Clustering (WSFC) is used with Metro volumes that are configured on ESXi hosts using Raw Device Mappings (RDMs), arbitration errors may appear in the Windows host log if a WSFC disk fails over. If a Windows node fails over, I/O may be interrupted. | Use Windows Cluster Failover Manager to bring the failed disk online. |
Upgrade package
If automatic download is not enabled on your PowerStore cluster, download the PowerStore upgrade package from the Dell Technologies Support site.
The name of the upgrade package on the support site is PowerStore T OS Upgrade LTS2026-4.3.1.0-2662695, and the file name of the downloadable upgrade package is PowerStoreT-LTS2026-4.3.1.0-2662695-retail.tgz.bin.
PowerStoreOS 4.3.0.0 (Build: 2611831)
See the Dell PowerStoreOS 4.3.0.0 Release Notes on the PowerStore Info Hub.
Affected Products
PowerStore, PowerStore 1000T, PowerStore 1200T, PowerStore 3000T, PowerStore 3200Q, PowerStore 3200T, PowerStore 5000T, PowerStore 500T, PowerStore 5200Q, PowerStore 5200T, PowerStore 7000T, PowerStore 9000T, PowerStore 9200TArticle Properties
Article Number: 000427228
Article Type: How To
Last Modified: 24 Feb 2026
Version: 3
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