Dell Unity: File System Offline with Error "substituteMappingInIndBlk: incorrect BMD weight"

Summary: File system offline with error "substituteMappingInIndBlk: incorrect BMD weight" SymptomCode: neo14:600f4 (Dell Correctable)

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Symptoms

A customers Unity Array may call home and report a file system offline condition.
Customer's production services may be impacted as a result.

Clarify Id:
Vendor:
DeviceType: Unity
Model:
SerialNumber:
EmbedLevel: 1
InternalMaxSize: 0
Ucode_Ver:
IP_Address: Not Available
ConnectNum: UDoctorKH01.40

SymptomCode: neo14:600f4
Category: status
Severity: Critical
Status: Failed
Component: Health
FirstTime:
LastTime:
CDATA:
Device: spa
<CustomerContactInfo>
<CustomerInfo>
<admin>
<admin_email>
<admin_name>
<admin_number>
</admin>
<company>
<company_address>
</company_address>
<company_name>
</company>
</CustomerInfo>
</CustomerContactInfo>

Description:
File system XXXXXX is offline.

 

Cause

The issue is that the file system goes offline with freeing free block error, this is the meta space of the lower deck file system.

 

Resolution

Contact Dell Customer Service And request immediate recovery assistance if your file system is offline.

Permanent Fix:

  • The issue is fixed in the 5.0.2.0.5.009 code. After recovery, upgrade to 5.0.2.0.5.009 or later to have the fix and prevent reoccurrence.

Workaround:

  • There is no workaround for this problem.

 

Affected Products

Dell EMC Unity Family

Products

Dell EMC Unity Family
Article Properties
Article Number: 000063263
Article Type: Solution
Last Modified: 02 Jun 2026
Version:  5
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