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Chapter 9. Troubleshooting
122 3ware Serial ATA RAID Controller User Guide for the Power Mac G5
The fact that a sector repair message has been sent to you is an indication of
the presence of grown defects on a particular drive. While typical modern disk
drives are designed to allow several hundred grown defects, special attention
should be paid to any drive in a unit that begins to indicate sector repair
messages. This may be an indication of a drive that is beginning to fail. You
may wish to replace the drive, especially if the number of sector repair errors
exceeds 3 per month.
0024 Sbuf memory test failed
The 3ware RAID controller, as part of its data integrity features, performs
diagnostics on its internal RAM devices. Once a day, a non-destructive test is
performed on the cache memory. Failure of the test indicates a failure of a
hardware component on the 3ware RAID controller. This message is sent to
notify you of the problem. If the controller is still under warranty, contact
3ware Technical Support for a replacement controller.
0025 Cache flush failed; some data lost
To improve performance, the 3ware RAID controller features caching layer
firmware. For write commands this means that it acknowledges it has
completed a write operation before the data is committed to disk. If the 3ware
RAID controller can not commit the data to the media after it has
acknowledged to the host, this message is posted.
Typically, the Cache Flush Failed notification would be an indication of a
catastrophic failure of the drives in the unit, such as loss of power to multiple
drives in a unit.
To troubleshoot the reasons for the failure, collect the logs for your system
and contact 3ware technical support at http://www.3ware.com/support/
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 121). For non-redundant units (RAID 0 and degraded units), drive ECC
errors result in the 3ware RAID controller returning failed status to the
associated host command.