Client application reports "no space left on device" when attempting to create file(s) on a Unity File System. There is sufficient available capacity in the File System.

Ενημερωμένοι: May 13, 2026 ID: 000196796

Dell Unity: Unable to enable tree quota for a folder that already exists. (Dell Correctable)

This article describes one of the reasons why an error is generated when trying to enable Tree Quota for an existing folder.

Ενημερωμένοι: May 13, 2026 ID: 000196737

Dell Unity: The NAS Server xxxx in the Domain xxxx Cannot Reach Any Domain Controller. (User Correctable)

This article describes one of the reasons why the following message is generated "The NAS server xxxx in the domain xxxx cannot reach any domain controller."

Ενημερωμένοι: May 13, 2026 ID: 000196735

Storage Performance Analysis and Sizing for the IBM i host platform

How to perform storage performance analysis and sizing of ASP capacity and individual disks for an IBM i host system.

Ενημερωμένοι: May 13, 2026 ID: 000196713

Dell Unity: How to Manage Write Cache During SP Maintenance Activities

This article provides best practices for the management of write cache (disabling, enabling, checking, flushing) during Unity Storage Processor (SP) maintenance activities. (User Correctable)

Ενημερωμένοι: May 13, 2026 ID: 000196684

Dell EMC Unity: System Status Card (SSC) is faulted; Alert Message: 14:60c1f

The System Status Card on a DAE has faulted.

Ενημερωμένοι: May 13, 2026 ID: 000052396

Dell Unity: Cooling Module with Faulted Alert Message 14:605e3 (User Correctable)

A cooling module has faulted, and an alert is generated.

Ενημερωμένοι: May 13, 2026 ID: 000062783

Dell EMC Unity: The CPU module in this Storage Processor (SP) has faulted. You need to replace the SP. Alert Message 14:60455

Dell EMC Unity Storage Processor has failed and must be replaced.

Ενημερωμένοι: May 13, 2026 ID: 000062953

Dell Unity: SFTP connection error "Connection closed by Remote Host".

SFTP disconnection seen post Unity Code Upgrade to OE 5.0.7 version

Ενημερωμένοι: May 13, 2026 ID: 000195892

Dell EMC Unity: SP panic can occur if a rebalance runs during NDU (Dell EMC Correctable)

During an NDU to 5.1.X code, if a rebalance operation is running, SP can panic.

Ενημερωμένοι: May 13, 2026 ID: 000195884

Dell EMC Unity: Using Continuous Availability when upgrading to version 5.1.2 may cause SP panics (User Correctable)

When Continuous Availability (CA) is enabled on an SMB share, upgrading to version 5.1.2 may induce SP panics and SPs going in to service mode.

Ενημερωμένοι: May 12, 2026 ID: 000195010

NetWorker NDMP 2-way backup of Unity may not work if inconsistent block size settings are used

If inconsistent block size settings are used in the 2-way NDMP data transfer path, the NDMP backup will not work and the tapes used during the backup may be marked full prematurely. It has been observed that the NDMP backup will start but the tape loaded in the drive gets marked full immediately, even if there is space remaining on the tape.

Ενημερωμένοι: May 12, 2026 ID: 000192759

Dell Unity: Performance charts are unavailable because the /EMC/backend/metricsluna1 partition is full.

Users found that the performance charts are not available in UnityOS 5.1.0 and 5.1.1.

Ενημερωμένοι: May 12, 2026 ID: 000192659

Dell Unity: How to copy customer data back to system drives from the hotspare used in Traditional Pools. (Dell Correctable)

This article describes how to copy customer data back to system drives from the hotspare used in Traditional pools.

Ενημερωμένοι: May 12, 2026 ID: 000192478

Dell Unity: Upgrade to Unity OE 4.2 fails with error: check_cores_existed_files_2

This article explains an issue where upgrading to Unity OE 4.2 fails with the error "check_cores_existed_files_2." (User Correctable)

Ενημερωμένοι: May 12, 2026 ID: 000052543

Dell Unity: Unexpected SP reboot due to Memory Map issues

A Dell Unity Storage Processor (SP) may unexpectedly reboot due to Memory Map (MMAP) issues.

Ενημερωμένοι: May 11, 2026 ID: 000191697

Dell EMC Unity: Prevention of Multi-bit CRC errors on certain drive types (Dell EMC Correctable)

Drives can experience multi-bit CRC errors and go offline.

Ενημερωμένοι: May 11, 2026 ID: 000191642

Dell EMC Unity: Increased latency on NFS exports lasting about 30 seconds when the export settings are modified (User Correctable)

Increased latency on NFS exports lasting about 30 seconds when the export settings are modified when using DNS names for hosts not IPs.

Ενημερωμένοι: May 11, 2026 ID: 000191522

Dell EMC Unity: Mapped Drive from Windows Shows File System Size Instead of User Quota Size After Reboot SP. (User Correctable)

If User Quota is enabled, when you check the size of the drive-mapped space from Windows client side, it is expected to show the size allocated by User Quota. However, after rebooting SP, the file system size was displayed instead of the User Quota size.

Ενημερωμένοι: May 11, 2026 ID: 000191431

Dell EMC Unity:How to add LDAP Users/Groups, for Unity Authentication, over GUI (User Correctable)

This Knowledge Base Article is to explain how to use Unisphere to configure LDAP Users or Groups, for authentication on a Dell EMC Unity Array.

Ενημερωμένοι: May 11, 2026 ID: 000019613

Dell EMC Unity: Under certain file system out-of-space conditions, an upgrade to 5.1 code may trigger a file system to go offline or rolling SP reboots (User Correctable)

Under certain out-of-space conditions, an upgrade to 5.1 may trigger file system offline or rolling SP reboots.

Ενημερωμένοι: May 11, 2026 ID: 000191205

Minimum, Recommended, and Latest Code Versions for Dell Technologies Servers, Storage, and Networking products

This document highlights minimum, recommended, and latest code versions for Dell Technologies Enterprise and Datacenter Infrastructure products. We carefully evaluate and monitor code deployment data to ensure that product releases meet our stringent expectations to provide our customers with reliable products and solutions.

Ενημερωμένοι: May 11, 2026 ID: 000205512

Dell EMC Unity: After upgrade to 5.1, some LDAP users may have trouble logging in to Unisphere (User Correctable)

After upgrading to 5.1, some users are unable to log in to Unisphere when their accounts are managed by LDAP.

Ενημερωμένοι: May 11, 2026 ID: 000190984

Dell EMC Unity: After upgrade to 5.1, certain Solaris 10 client commands do not complete (Dell EMC Correctable)

Upgrading to 5.1 breaks any calls that are issued using the nfs_v3_readdirplus call from Solaris NFSv3 clients.

Ενημερωμένοι: May 11, 2026 ID: 000190227

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Dell EMC Unity Hybrid

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