Error and Notification Messages
www.3ware.com 233
index.asp. For information on what error logs are and how to collect them, see
http://www.3ware.com/KB/article.aspx?id=12278.
0026 Drive ECC error reported
This message may be sent when a drive returns the ECC error response to n
3ware RAID controller command. The message may or may not be associated
with a host command. Internal operations such as Verify post this message
whenever drive ECC errors are detected.
Drive ECC errors are an indication of a problem with grown defects on a
particular drive. For redundant units, this typically means that dynamic sector
repair would be invoked (see message “0023 Sector repair completed” on
page 232). For non-redundant units (JBOD, RAID 0 and degraded units),
drive ECC errors result in the 3ware RAID controller returning failed status to
the associated host command.
0027 DCB checksum error detected
The 3ware RAID controller stores certain configuration parameters on a
reserved area of each disk drive called the Drive Configuration Block (DCB).
As part of power-on initialization, the 3ware RAID controller performs a
checksum of the DCB area to ensure consistency. If this error occurs, please
contact 3ware technical support. The drive’s DCB has been corrupted.
0028 DCB version unsupported
During the evolution of the 3ware product line, the format of the DCB has
been changed to accommodate new features. The DCB format expected by
the 3ware RAID controller and the DCB that is written on the drive must be
compatible. If a unit that was created on a very old 3ware product is
connected to a newer 3ware RAID controller, this message is posted and the
3ware RAID controller rejects the drive. Please contact 3ware technical
support if this event occurs.
0029 Verify started
The 3ware RAID controller allows you to verify data integrity on a unit. The
verification functions for different RAID levels are as follows:
• Single, JBOD, and Spare. Verify = Media Scan
• RAID 0. Verify = Media Scan
• RAID 1. Verify = Compare of Mirror Sides
• RAID 10. Verify = Compare of Mirror Sides
• RAID 5 and 50. Verify = Compare of Parity Data with User Data
For information on scheduling verifications, see “Scheduling Background
Tasks” on page 161
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