Articles
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This document highlights minimum, recommended, and latest code versions for Dell Technologies Enterprise and Data Center Infrastructure products. Dell carefully evaluates and monitors code deployment data to ensure that product releases meet our stringent expectations to provide our customers with reliable products and solutions.
Updated: September 21, 2026
ID: 000502480
Information about customer replaceable unit (CRU) videos for Dell Technologies Connectrix products
Updated: September 18, 2026
ID: 000262233
Explore the Dell End of Service Life (EOSL) and End of Life (EOL) list for converged infrastructure, storage, and storage networking products. Access End-of-Life documents for hardware, software, and firmware release and service dates
Updated: September 23, 2026
ID: 000185734
Starting in code 4.5.x.x, new performance metrics have been added to help track and diagnose Fibre Channel port related issues. These metrics are available as Real-Time or Historical Metrics through Unisphere, UEMCLI, and AIOPs (formerly CloudIQ).
Updated: September 23, 2026
ID: 000019797
This article explains how to identify supported Fibre Channel fiber optic cables for Dell Unity systems, including cable types, SFP compatibility, and connectivity requirements for supported SAN deployments.
Updated: September 23, 2026
ID: 000020754
This article provides guidance for troubleshooting Fibre Channel port connectivity issues on Dell Unity systems, including verification of port status, error counters, switch configuration, SFPs, cabling, and other common causes of link-related problems.
Updated: September 23, 2026
ID: 000020712
This article explains how to identify the Primary Storage Processor (SP) on a Dell Unity system. It describes how to determine which SP is hosting the ECOM management service by using either the Unisphere GUI or an SSH/SOL session, and how to verify the Primary SP by checking for the active ECOM process.
Updated: September 23, 2026
ID: 000022649
Upgrading ESXi hosts from VMware 6.7 to 7.0 may inadvertently turn on Storage I/O Control (SIOC) and may cause a performance issue if the settings are incorrect.
Updated: September 23, 2026
ID: 000182816
This article provides different methods to safely reboot a Unity Storage Processor (SP).
Updated: September 23, 2026
ID: 000004451
A DAE expansion can generate a burst of I/O activity that, under specific conditions, may exhaust the RMD global write request pool. If this occurs, both Storage Processors (SPA and SPB) can encounter the same panic condition simultaneously, resulting in a temporary loss of data access. Upgrading to Unity OE 5.1.x or later increases the RMD write request pool size and reduces the likelihood of this issue occurring during periods of high I/O activity.
Updated: September 23, 2026
ID: 000184814
After the admin and service passwords are reset using the Non-Maskable Interrupt (NMI) button, and Unisphere is accessed, the user is prompted to change the password. A message window with "Error Code: 0x6400b88" is displayed.
Updated: September 23, 2026
ID: 000365604
A Dell Unity OE upgrade may fail to resume after being paused if management services switch to a different Storage Processor (SP) than the one holding the upgrade files. Reboot the active SP so the SP containing the upgrade image becomes primary, then retry or resume the upgrade.
Updated: September 23, 2026
ID: 000052735
This article displays a list of Dell Software Products and related articles on how to obtain the Software Unique ID (SWUID) for each specific product. The SWUID is required for streamlining the processes related to both the Software License Renewal process and opening a Support Case.
Updated: September 21, 2026
ID: 000296065
This article discusses various ways to check the Drive End Of Life (EOL) status on Dell Unity arrays.
Updated: September 18, 2026
ID: 000267404
The article provides links to Dell Unity All-Flash and Hybrid product documentation and information including configuration, documentation, administration, and specifications. Various links describe how to install, manage, monitor and service a Unity system, and how to add and replace Unity hardware components.
Updated: September 17, 2026
ID: 000126652
In Unity 5.5, File System (FS) access can be provided using a Network File System (NFS) mount using NFSv3 or NFSv4 file sharing protocols. This is typically done for Logical Unity Numbers (LUN) and NFS datastores with specific mounting parameters and then scripted for various groups of hosts.
A directory is created for the mount point when mounting file shares using NFSv4.2. If the directory security label (sec_label) parameter has no data assigned to it, the Unity Service Processors (SP) can panic and reboot unexpectedly.
Updated: September 17, 2026
ID: 000334226
Dell Unity: Alert received: "A new drive firmware file (version XXXX) is now available on the storage system and ready for upgrade."
Updated: September 17, 2026
ID: 000347813
Dell Unity systems may generate a weekly error alert ‘14:640003’ if an automatically downloaded OE image is available but has not yet been installed.
Updated: September 17, 2026
ID: 000330596
In Dell Unity OE 5.3 and later, Periodic ODFU (pODFU) stands for Periodic Online Drive Firmware Update. It is a background service that automatically checks for drives running older firmware revisions and upgrades them using a previously installed drive firmware bundle.
Updated: September 17, 2026
ID: 000218180
This article discusses how to download and upgrade the drive firmware on all Unity arrays except the virtual UnityVSA appliance. UnityVSA is not impacted.
Updated: September 17, 2026
ID: 000021322
This article explains how to obtain, activate, and manage licenses for Dell Unity systems, including UnityVSA Community Edition, UnityVSA Professional Edition, Unity Hybrid, and Unity All Flash platforms. It also covers the UnityVSA Community Edition license request process, Duplicate UUID errors that may occur when requesting a license multiple times, and methods for downloading or regenerating license files through the Dell Licensing Portal.
Updated: September 16, 2026
ID: 000052537
When a storage pool's usage exceeds its high water mark, the automatic snapshot deletion (auto delete) feature pauses. Although it tries to delete snapshots to free up space, it may not be enough to bring the pool's usage below the threshold. As a result, the auto delete function remains paused, displaying an error message, until you manually restart it. Once reenabled, the auto delete feature resumes attempting to delete snapshots and reduce pool consumption.
Updated: September 16, 2026
ID: 000052362
This article explains how to manage admin and service account passwords on Dell Unity systems. It provides instructions for changing passwords, unlocking a locked service account, and resetting admin or service passwords when access is lost.
Updated: September 16, 2026
ID: 000022355
This article explains why a Storage Processor (SP) Panics when a pool reaches 100% consumed and provides remediation options.
Updated: September 16, 2026
ID: 000052729
This article explains how to manually renew the Unity Management SSL certificate when the existing certificate is nearing expiration or has already expired. It provides the steps required to generate, install, and verify a new management certificate to maintain secure access to the Unity management interfaces and prevent certificate-related warnings or connectivity issues.
Updated: September 16, 2026
ID: 000022509
Dell Unity provides file system quota functionality to control and monitor storage consumption on SMB, NFS, and multiprotocol file systems. This article explains user quotas, quota trees, quota policies, quota limits, and how to configure quota trees using Unisphere or UEMCLI.
Updated: September 15, 2026
ID: 000004518
This document highlights minimum, recommended, and latest code versions for Dell Technologies Enterprise and Data Center Infrastructure products. Dell carefully evaluates and monitors code deployment data to ensure that product releases meet our stringent expectations to provide our customers with reliable products and solutions.
Updated: September 15, 2026
ID: 000205512
There are many reasons for not being able to renew or remove a VASA certificate. This article covers only the attempt to renew or remove when the Certificate Validation fails due to "Certificate Chain too long".
Updated: September 09, 2026
ID: 000185269
Dell Unity OE Matrix, release dates, recommended code, and so on.
Updated: September 09, 2026
ID: 000020641
Third-party DHSM applications (non-VNX DHSM) are incompatible with Dell Unity File IMT migration. Parameter changes are required for proper implementation. (Dell Correctable)
Updated: September 09, 2026
ID: 000186807