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Observed Drive Errors Across Multiple PowerEdge Installations. Background Media Scanning (BMS) becoming uninterruptible, leading to drive unresponsiveness. I/O errors observed during normal operation. Host‑initiated timeouts, including a 12‑second timeout value
Firmware Issue Leading to Uninterruptible Background Media Scanning (BMS) The root cause is a defect in the Toshiba MG08 and MG09 firmware that allows the BMS routine to become uninterruptible. When BMS resumes after an idle period, subsequent host media‑access commands are no longer able to suspend the scan, causing the drive to remain busy until the system‑wide 12‑second timeout expires. Affected Firmware Revisions Product Firmware MG08 Air SAS EL01 MG08 Air SATA GE01 MG09 SAS EM05 and earlier MG09 SATA GF07 and earlier
Update firmware on Toshiba MG08 and MG09 drives at the earliest available opportunity to avoid impact to data. Caution: Perform firmware updates during a scheduled maintenance window. Ensure that all data is fully backed up, as a power loss during the update can render the drive inoperable. Importance: Urgent: Dell Technologies highly recommends applying this important update as soon as possible. The update contains critical issue fixes and changes to improve the functionality, reliability, and stability of your Dell system. It may also include security fixes and other feature enhancements. The minimum firmware versions in which this issue is resolved are listed below: Family Drive Part Number Capacity Fixed Firmware Part Number Fixed Firmware Revision Firmware Release Date MG08 Air SAS NJWMG 8 TB F95CX EL02 October 20, 2025 MG08 Air SATA T5XR5 8 TB 65CDF GE02 October 20, 2025 MG09 SAS 0N96X 12 TB 20Y02 EM06 December 02, 2025 MG09 SAS MXC46 16 TB 20Y02 EM06 December 02, 2025 MG09 SAS HKR0D 18 TB 20Y02 EM06 December 02, 2025 MG09 SATA 5C2XG 12 TB KMTGF GF08 December 02, 2025 MG09 SATA WNXKJ 16 TB KMTGF GF08 December 02, 2025 MG09 SATA MN6V8 18 TB KMTGF GF08 December 02, 2025
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