SCSI error: return code = 0x08000002 with "<<vendor>> ASC=0x95 ASCQ=0x50"

Solution In Progress - Updated -


  • Red Hat Enterprise Linux Any Version


  • /var/log/messages reports SCSI errors that contain;

    kernel: sd X:X:X:X: SCSI error: return code = 0x08000002
    • and;
    kernel:     <<vendor>> ASC=0x95 ASCQ=0x50ASC=0x95 ASCQ=0x50


Next Actions

  • In most cases, these messages are hardware errors
    1. Open a Support Case with the hardware vendor
    2. If requested by the hardware vendor, open a new Support Case for collaboration with Red Hat, quoting the ticket number from them.

About Vendor Specific Error Codes

  • The SCSI specification reserves a number of codes above 0x08 for use by hardware vendors.
  • The meanings of these error codes are dependent on deployed hardware and vary between vendors.

Learn More

Understanding <<vendor>> Descriptions

SCSI Error Codes Deep Dive

Matching an address to a device

Diagnostic Steps

  • Vendor specific SCSI errors are used by manufacturers to provide detailed support information about events on their products.

This solution has been reviewed for technical accuracy, optimized for search, and integrated with Product Documentation and/or Red Hat Access Labs. Much like when a software package is accepted upstream, this content has moved from the general KCS editing workflow into the responsibility of Customer Content Services as maintainers.