How to correct FAILURE - READ_DMA
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Upgraded from 1.2.3 to 2.0RC3, after few days got:
Sep 5 04:02:21 tbfirewall kernel: ad0: FAILURE - READ_DMA status=51 <ready,dsc,error>error=40 <uncorrectable>LBA=3919
Sep 5 04:02:21 tbfirewall kernel: g_vfs_done():ad0s1a[READ(offset=1966080, length=16384)]error = 5
Sep 5 04:02:22 tbfirewall kernel: ad0: FAILURE - READ_DMA status=51 <ready,dsc,error>error=40 <uncorrectable>LBA=3919
Sep 5 04:02:22 tbfirewall kernel: g_vfs_done():ad0s1a[READ(offset=1966080, length=16384)]error = 5
Sep 5 04:02:23 tbfirewall kernel: ad0: FAILURE - READ_DMA status=51 <ready,dsc,error>error=40 <uncorrectable>LBA=3919
Sep 5 04:02:23 tbfirewall kernel: g_vfs_done():ad0s1a[READ(offset=1966080, length=16384)]error = 5SMART Attributes Data Structure revision number: 11
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x0029 100 253 020 Pre-fail Offline - 0
3 Spin_Up_Time 0x0027 080 079 020 Pre-fail Always - 2585
4 Start_Stop_Count 0x0032 096 096 008 Old_age Always - 3044
5 Reallocated_Sector_Ct 0x0033 100 100 020 Pre-fail Always - 2
7 Seek_Error_Rate 0x000b 093 024 023 Pre-fail Always - 1
9 Power_On_Hours 0x0012 087 087 001 Old_age Always - 8787
10 Spin_Retry_Count 0x0026 100 100 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0013 100 100 020 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 096 096 008 Old_age Always - 3035
13 Read_Soft_Error_Rate 0x000b 100 100 023 Pre-fail Always - 0
195 Hardware_ECC_Recovered 0x001a 100 001 000 Old_age Always - 176692277
196 Reallocated_Event_Count 0x0010 100 100 020 Old_age Offline - 0
197 Current_Pending_Sector 0x0032 100 100 020 Old_age Always - 2
198 Offline_Uncorrectable 0x0010 100 253 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x001a 077 077 000 Old_age Always - 123Warning: device does not support Error Logging
SMART Error Log Version: 0
No Errors LoggedWarning: device does not support Self Test Logging
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error1 Extended offline Completed without error 00% 4923 -
2 Short offline Completed without error 00% 4923 -
3 Extended offline Completed: read failure 90% 4922 4872
found this thread http://forums.freebsd.org/showthread.php?t=4508
can't get how fsdb should be installed if I do:
/usr/sbin/pkg_add fsdb>>>>>>pkg_add: can't stat package file 'fsdb'searched with find but got no match.
Can you please kindly help me?</uncorrectable></ready,dsc,error></uncorrectable></ready,dsc,error></uncorrectable></ready,dsc,error>
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Hope this can help others with this stressing problem with IDE disks:
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check the bios, disable LBA mode, set IDE to AHCI.
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disable DMA: in /boot/loader.conf add hw.ata.atapi_dma=0
bye
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To add packages you would need to use something like:
pkg_add -r fsdb
Steve
Edit: However it isn't an available package on the FreeBSD ftp server.
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Backup your data, the drive is likely dying.
You can also check Diagnostics > SMART Status
If it were random LBAs/offsets, I might be inclined to say it could be a driver/cable/controller issue, but to see the same LBA/offset over and over screams "dying disk".