PowerEdge: Seagate Lange SSDs May Experience Timeouts Under Certain Conditions

Summary: Under certain use-case conditions Seagate (STX) Lange SSDs may begin to timeout on operations. This article explains the root cause and provides steps to resolve this issue.

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

Dell Seagate Lange SSDs may encounter timeouts six (6) months or longer after deployment. Of note is that this condition will only occur in environments with low write workloads where the SSD is largely unused (unmapped).

Cause

The SSD Garbage Collection activity is handling empty cells in addition to cells with data.
 
An investigation found that Garbage Collection was queuing unused, empty flash areas for maintenance activities. The cumulative effect of this significantly increased garbage collection activities over time, eventually leading to timeouts.

Resolution

Upgrade firmware to correct garbage collection functionality.
 
Dell identified and implemented a firmware change which prevents the inclusion of  empty areas of the SSD in garbage collection. This change was implemented beginning with firmware version EC16 for Lange SSDs. Upgrade to firmware version EC16 or later to correct this issue.
 
Once flashed the drive will complete an initial cycle of data refresh followed by the completion of garbage collection and no longer encounter the issue.
 
Part numbers for affected Lange SSDs:

  • Model XS960SE70074: Dell Part Number TM62W
  • Model XS1920SE70074: Dell Part Number 8G4YC
  • Model XS3840SE70074: Dell Part Number PMX4N
  • Model XS7680SE70074: Dell Part Number 2PKRH

Affected Products

PowerEdge R530, PowerEdge R530xd, PowerEdge R540, PowerEdge R630, PowerEdge R640, PowerEdge R6415, PowerEdge R6515, PowerEdge R730, PowerEdge R730xd, PowerEdge R740

Products

PowerEdge R740XD, PowerEdge R740XD2, PowerEdge R7415, PowerEdge R7425, PowerEdge R830, PowerEdge R840, PowerEdge R930, PowerEdge R940, PowerEdge R940xa, PowerEdge T630, PowerEdge T640
Article Properties
Article Number: 000183657
Article Type: Solution
Last Modified: 08 Sept 2026
Version:  6
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