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Dell PowerEdge Express Flash NVMe PCIe SSD Adapter User’s Guide

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I/O device error on write to NVMe PCIe SSD

Description

Windows event log may report the following entries on the first write attempt to an NVMe PCIe SSD: Event ID 7: The device, \Device\Harddisk\DRX, has a bad block.

When attempting to initialize the device using Computer Management > Storage > Disk Management , the following message is displayed: Virtual Disk Manager, Data Error (cyclic redundancy check) .

Linux messages log may report the following entries on a write attempt to an NVMe PCIe SSD:
  • Buffer I/O error on device nvmeXn1, logical block Y (where X is the number corresponding to the device and Y is the logical block)
  • nvmeXn1: unable to read partition table (where X is the number corresponding to the device)
Cause
NVMe PCIe SSDs have a finite number of write cycles. When an NVMe PCIe SSD exhausts the number of writes, it goes into Write Protect (Read Only) mode.
Solution
By using system management applications, you may check the NVMe PCIe SSD state to confirm if the NVMe PCIe SSD is in Read-Only Mode. For further instructions, contact a Dell Technical Service representative.

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