PowerEdge: Toshiba AL15SE Drives May Experience "Drive Not Ready" Failures

Summary: Toshiba AL15SE HDDs may enter a Drive Not Ready (DNR) state and report repeated seek retries associated with sense codes 04-4C-91, 04-4C-95, 04-4C-E0, or 04-44-82.

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

The affected drive may exhibit one or more of the following symptoms:

  • The drive enters a Drive Not Ready (DNR) state and does not become ready during initialization.
  • Multiple seek retries may occur during power-on.
  • The drive may be unable to load or upload its internal microcode.
  • One or more of the following hardware error sense codes may be reported:
    • 04-4C-91: CS1 read error (microcode read error during a read operation)
    • 04-4C-95: Microcode read error during a seek operation
    • 04-4C-E0: Internal calibration failure
    • 04-44-82: Internal reboot triggered by a hardware error

Cause

Voltage sensitivity.

Resolution

Toshiba has released updated firmware that mitigates this issue.

  • Firmware version EF0A applies to the affected AL15SE drive models listed below.
  • Firmware version EF82 applies only to model AL15SEB09EQY.

The firmware packages are available for download from Dell Support.

Dell Part Number Model Number Capacity Fixed Firmware Version
DJY4Y AL15SEB18EPY 1.8TB EF0A
K9GY7 AL15SEB24EPY 2.4TB EF0A
0WRRF AL15SEB18EQY 1.8TB EF0A
F9NWJ AL15SEB24EQY 2.4TB EF0A
GWFRY AL15SEB030NY 300GB EF0A
4WX8Y AL15SEB060NY 600GB EF0A
01M0D AL15SEB120NY 1.2TB EF0A
R04D9 AL15SEB09EQY 900GB EF82

Affected Products

DD3300 Appliance, PowerProtect DP4400, DD6900 Appliance, DD9900 Appliance, Dell EMC XC Core XCXR2, Dell EMC XC Core XC6520, Dell EMC XC Series XC6420 Appliance, Storage Spaces Direct R640 Ready Node, Storage Spaces Direct R740xd Ready Node , Storage Spaces Direct R740xd2 Ready node, OEMR R230, OEMR R240, OEMR R250, OEMR XE R250, OEMR R330, OEMR R340, OEMR R350, OEMR XE R350, OEMR R430, OEMR R440, PowerEdge XR2, OEMR R450, OEMR R530, OEMR R540, OEMR R550, OEMR R5500, OEMR R630, OEMR R640, OEMR XL R640, OEMR R6415, OEMR R650, OEMR R650xs, OEMR R6515, OEMR R6525, OEMR R730, OEMR R730xd, OEMR R740, OEMR XL R740, OEMR R740xd, OEMR XL R740xd, OEMR R740xd2, OEMR R7415, OEMR R7425, OEMR R750, OEMR R750xa, OEMR R750xs, OEMR R7515, OEMR R7525, OEMR R830, OEMR R840, OEMR R920, OEMR R930, OEMR R940, OEMR R940xa, OEMR T140, OEMR T150, OEMR T330, OEMR T340, OEMR T350, OEMR T430, OEMR T440, OEMR T550, OEMR T560, OEMR T630, OEMR T640, OEMR XL T640, OEMR XL R230, OEMR XL R330, OEMR XL R340, OEMR XL R730, OEMR XL R730XD, OEMR XR11, PowerProtect DP5900, PowerProtect DP8400, PowerProtect DP8900, PowerEdge C4130, PowerEdge C6400, PowerEdge C6420, PowerEdge C6520, PowerEdge C6525, Poweredge FC630, PowerEdge FC640, Poweredge FC830, PowerEdge FD332, PowerEdge M630, PowerEdge M630 (for PE VRTX), PowerEdge M640, PowerEdge M640 (for PE VRTX), PowerEdge M830, PowerEdge M830 (for PE VRTX), PowerEdge MX5016s, PowerEdge MX740C, PowerEdge MX750c, PowerEdge MX840C, PowerEdge R230, PowerEdge R240, PowerEdge R250, PowerEdge R330, PowerEdge R340, PowerEdge R350, PowerEdge R430, PowerEdge R440, PowerEdge R450, PowerEdge R530, PowerEdge R530xd, PowerEdge R540, PowerEdge R550, PowerEdge R630, PowerEdge R640, PowerEdge R6415, PowerEdge R650, PowerEdge R650xs, PowerEdge R6515, PowerEdge R6525, PowerEdge R730, PowerEdge R730xd, PowerEdge R740, PowerEdge R740XD, PowerEdge R740XD2, PowerEdge R7415, PowerEdge R7425, PowerEdge R750, PowerEdge R750XA, PowerEdge R750xs, PowerEdge R7515, PowerEdge R7525, PowerEdge R830, PowerEdge R840, PowerEdge R920, PowerEdge R930, PowerEdge R940, PowerEdge R940xa, PowerEdge T140, PowerEdge T150, PowerEdge T330, PowerEdge T340, PowerEdge T350, PowerEdge T430, PowerEdge T440, PowerEdge T550, PowerEdge T560, PowerEdge T630, PowerEdge T640, PowerEdge XR11, PowerFlex appliance R650, PowerFlex appliance R6525, Powerflex appliance R750, PowerFlex custom node R650, PowerFlex custom node R6525, PowerFlex custom node R750, PowerVault MD1200, PowerVault MD1220, PowerVault MD3060e, PowerVault MD3400, PowerVault MD3420, PowerVault MD3460, PowerVault MD3800f, PowerVault MD3800i, PowerVault MD3820f, PowerVault MD3820i, PowerVault MD3860f, PowerVault MD3860i, Dell EMC PowerVault ME4012, Dell EMC PowerVault ME4024, Dell EMC PowerVault ME4084, Dell EMC PowerVault ME412 Expansion, Dell EMC PowerVault ME424 Expansion, Dell EMC PowerVault ME484, PowerVault ME5012, VxFlex Ready Node R640, VxFlex Ready Node R740xd, Dell Storage MD1280, Dell Storage MD1400, Dell Storage MD1420, Dell Storage NX3230, Dell EMC Storage NX3240, Dell Storage NX3330, Dell EMC Storage NX3340, Dell Storage NX430, Dell EMC vSAN C6420 Ready Node, Dell EMC vSAN MX740c Ready Node, Dell EMC vSAN MX750c Ready Node, Dell EMC vSAN R440 Ready Node, Dell EMC vSAN R640 Ready Node, Dell EMC vSAN R6415 Ready Node, Dell EMC vSAN R650 Ready Node, Dell EMC vSAN R6515 Ready Node, Dell EMC vSAN R740 Ready Node, Dell EMC vSAN R740xd Ready Node, Dell EMC vSAN R750 Ready Node, Dell EMC vSAN R840 Ready Node, Dell EMC vSAN T350 Ready Node, PowerFlex appliance R640, PowerFlex appliance R740XD, PowerFlex appliance R7525, PowerFlex appliance R840, VxFlex Ready Node R840 ...
Article Properties
Article Number: 000495316
Article Type: Solution
Last Modified: 07 Oct 2026
Version:  5
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