Dell EMC Unity XT 880F

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.

Information about customer replaceable unit (CRU) videos for Dell Technologies Unity products

The tables below list the TCP ports required for Unity Replication. These ports enable communication between Unity Replication services and must be accessible across the network for proper replication functionality.

This article describes the procedure for identifying and clearing stuck or suspended batch jobs in Dell Unity when jobs remain in a failed state and cannot be removed through Unisphere.

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

In Unity OE 5.2.0.0.5.173, users with Kerberos tokens larger than 16 KB may be unable to access SMB/CIFS shares hosted on a Unity NAS Server. The issue occurs when SMB authentication uses Kerberos and is caused by a defect in the SMB Session Setup process that incorrectly returns a STATUS_INVALID_PARAMETER error for large Kerberos tokens. The issue is resolved in Unity OE 5.2.1.0.5.013 (5.2 SP1). Until an upgrade can be performed, affected users may reduce their Kerberos token size, use NTLM authentication, or fail over to a Unity OE 5.1.x array if available.

When iozone performs continuous writes to an NFS export, filesystem operations such as ls may appear to hang because the Linux NFS client delays processing these requests until the write workload completes. This behavior is driven by the Linux client implementation and is not caused by the Unity storage system.

Replication Connection creation or verification may fail with Error 0x6500128 even though the remote system is successfully registered. This issue commonly occurs when required replication interfaces are missing, incorrectly configured, or when the selected replication mode requires connectivity that is not available between the source and destination Unity systems. Ensure that all required replication interfaces are configured and operational on both Unity systems before creating or verifying a Replication Connection.

In Dell Unity OE 5.0.x, the Resume confirmation message displayed after a Failover with Sync operation incorrectly states that a full synchronization will be initiated for all selected replication sessions. This is a user interface messaging issue only and does not affect actual replication behavior. Dell Unity Development has identified the issue, and a fix is scheduled for Dell Unity OE 5.1, where the Resume summary message will correctly reflect the replication operation being performed.

This article shows how to find the Dell Unity Serial Number (SN) when looking for CTA Virtual Edition (VE) support, since CTA VE, when implemented with Unity, has no SN to open a case with, instead the Unity SN is used.

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.

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".

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.

This article helps storage administrators to check which Kerberos encryption types are enabled on a NAS server, without having to mount the NAS server.

Hosts keep disconnecting from the Unity storage system.

This KB explains how to manage VNX's unisphere using an LDAP user

The Pre-Upgrade Health Check (PUHC) script fails. The tar reports 'This does not look like a tar archive' and header errors, caused by the browser incorrectly decompressing the tar.gz file.

A Dell Unity software upgrade fails with 'Health Check Error:check_replication_health_2, check_replication_health_5'. The software update could also fail with 'Warning: check_replication_health_4'.

Dell Unity: Error 14:600038" "The maximum number of file-based snapshots allowed will be reached in XX day(s) and XXhour(s). The current percentage is XX of the maximum size."(User Correctable)

A dial home test message is sent via ConnectHome.

When a Unity system initiates a call home to open a service request for a support issue, it sends the customer's contact information along with the alert message. This simplifies the process for Technical Support engineers to contact the appropriate individuals. Up-to-date contact information ensures that Technical Support has the most accurate information for contacting the customer in response to a support issue. Dell Technologies recommends keeping the primary contact's information up to date in Unity Unisphere. This article shows how to do so.

When creating a Proxy NAS Server, if the NAS Server name contains spaces, the addition fails.

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.

This article explains how to configure the file filtering feature on Dell Unity file systems.

Call home alert neo14:601fe

This article explains the "dm::check_filesystems_health_4" warning during a Unity pre‑upgrade health check (PUHC). The PUHC indicates potential file system issues to review before upgrading. It outlines the cause, verification steps, and recommended remediation to ensure that the system is healthy before upgrading.

Dell EMC Unity: Deployment KB: How to enable CEPA on NFS only NAS Server

Storage Processors (SPs) may panic due to a memory leak.

Call home alert 14:170050 The license has expired

A dial home alert (14:38004e) has been generated indicating that the “service” user home directory has exceeded its allocated disk space, potentially impacting system operations such as core dump file storage.