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Error and Notification Messages
www.lsi.com/channel/products 261
the 3ware RAID controller (because of an intermittent or poor quality cable
connection) the 3ware RAID controller detects this as a UDMA CRC or cable
error. The 3ware RAID controller then retries the failed command three times
at the current UDMA transfer rate. If the error persists, it lowers the UDMA
transfer rate (for example, from UDMA 100 to UDMA 66) and retries another
three times.
Action
Check for possible causes of UDMA CRC errors such as defective or poor
quality interface cables or cable routing problems through electrically noisy
environments (for instance, cables are too close to the power supply). Also
check for cables which are not standard or exceed the ATA specification. A
list of cables for use with 3ware controllers is available at
http://www.lsi.com/channel/products/ raid_controllers/accessories/cables
.
0022 Upgrade UDMA mode
Event Type
Warning
Cause
During a self-test, the controller found that a drive was not in the optimal
UDMA mode and upgraded its UDMA transfer rate.
Action
None required. The drive and cable are working in optimal mode.
0023 Sector repair completed
Event Type
Warning
Cause
The 3ware RAID controller moved data from a bad sector on the drive to a
new location.
Background Information
The 3ware RAID controller supports a feature called dynamic sector repair
that allows the unit to recover from certain drive errors that would normally
result in a degraded unit situation. For redundant units such as RAID 1, 5, 6,
10, and 50, the 3ware RAID controller essentially has two copies of your data
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