3Ware 7506-8 User Guide - Page 114

AEN 029h, AEN_VERIFY_STARTED, AEN_SECTOR_OVERWRITE, RAID 5. Verify = Parity Data = User Data

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Troubleshooting: Problems and Solutions AEN 029h AEN_VERIFY_STARTED The ATA RAID controller allows the user to verify data integrity on an array.The verification functions for different RAID levels are as follows: ■ JBOD. Verify = Media Scan ■ RAID 0. Verify = Media Scan ■ RAID 1. Verify = Compare of Mirror Sides ■ RAID 10. Verify = Compare of Mirror Sides ■ RAID 5. Verify = Parity Data = User Data When the verification starts, this AEN is posted to the user. AEN 02Ah AEN_VERIFY_FAILED This AEN indicates that the data integrity verification function (see AEN 029h) has terminated with an error. For each RAID level being verified, this may mean: ■ JBOD. A single drive returned an error, possibly because of a media defect. ■ RAID 0. A single drive returned an error, possibly because of a media defect. ■ RAID 1. One side of the mirror does not equal the other side. ■ RAID 10. One side of the mirror does not equal the other side. ■ RAID 5. The parity data does not equal the user data. For JBOD and RAID 0, the most likely cause of the error is a grown defect in the drive. For out-of-synchronization mirrors, the error could be caused by improper shutdown of the array. This possibility applies to RAID 1, 10 and 5. A rebuild will re-synchronize the array. AEN 02Bh AEN_VERIFY_DONE This AEN indicates the data integrity verification function (see AEN 029h) was completed successfully. No errors were encountered. AEN 02Ch AEN_SECTOR_OVERWRITE If a read error is encountered during a rebuild and the user chooses to ignore the error, the sector in error is reallocated. The user is notified of the event by this AEN. 106 3ware Escalade ATA RAID Controller User Guide

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Troubleshooting: Problems and Solutions
106
3ware Escalade ATA RAID Controller User Guide
AEN 029h
AEN_VERIFY_STARTED
The ATA RAID controller allows the user to verify data integrity on an
array.The verification functions for different RAID levels are as follows:
■
JBOD. Verify = Media Scan
■
RAID 0. Verify = Media Scan
■
RAID 1. Verify = Compare of Mirror Sides
■
RAID 10. Verify = Compare of Mirror Sides
■
RAID 5. Verify = Parity Data = User Data
When the verification starts, this AEN is posted to the user.
AEN 02Ah
AEN_VERIFY_FAILED
This AEN indicates that the data integrity verification function (see AEN
029h) has terminated with an error. For each RAID level being verified, this
may mean:
■
JBOD. A single drive returned an error, possibly because of a media
defect.
■
RAID 0. A single drive returned an error, possibly because of a media
defect.
■
RAID 1. One side of the mirror does not equal the other side.
■
RAID 10. One side of the mirror does not equal the other side.
■
RAID 5. The parity data does not equal the user data.
For JBOD and RAID 0, the most likely cause of the error is a grown defect in
the drive. For out-of-synchronization mirrors, the error could be caused by
improper shutdown of the array. This possibility applies to RAID 1, 10 and 5.
A rebuild will re-synchronize the array.
AEN 02Bh
AEN_VERIFY_DONE
This AEN indicates the data integrity verification function (see AEN 029h)
was completed successfully. No errors were encountered.
AEN 02Ch
AEN_SECTOR_OVERWRITE
If a read error is encountered during a rebuild and the user chooses to ignore
the error, the sector in error is reallocated. The user is notified of the event by
this AEN.