And again help on deciphering an error

Hello,

Before I ask my question - if there is some documentation that answers what I am asking - I would be thrilled to read it. So far google has not helped me at all.

This being said I need help with understanding what is going on here (full log):

Oct 27 11:33:41 Arzamas kernel: ata6.00: exception Emask 0x10 SAct 0x0
SErr 0x80000 action 0xe frozen
Oct 27 11:33:41 Arzamas kernel: ata6.00: irq_stat 0x01100010, PHY RDY
changed
Oct 27 11:33:41 Arzamas kernel: ata6: SError: { 10B8B }
Oct 27 11:33:41 Arzamas kernel: ata6.00: cmd
ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0
Oct 27 11:33:41 Arzamas kernel: res 06/37:00:00:00:00/00:00:00:00:06/00
Emask 0x12 (ATA bus error)
Oct 27 11:33:41 Arzamas kernel: ata6.00: error: { IDNF ABRT }
Oct 27 11:33:41 Arzamas kernel: ata6: hard resetting link
Oct 27 11:33:46 Arzamas kernel: ata6: SATA link up 3.0 Gbps (SStatus 123
SControl 0)
Oct 27 11:33:46 Arzamas kernel: ata6.00: configured for UDMA/100
Oct 27 11:33:46 Arzamas kernel: ata6: EH complete
Oct 27 11:33:46 Arzamas kernel: sd 6:0:0:0: [sde] 488397168 512-byte
hardware sectors (250059 MB)
Oct 27 11:33:46 Arzamas kernel: sd 6:0:0:0: [sde] Write Protect is off
Oct 27 11:33:46 Arzamas kernel: sd 6:0:0:0: [sde] Mode Sense: 00 3a 00 00
Oct 27 11:33:46 Arzamas kernel: sd 6:0:0:0: [sde] Write cache: enabled,
read cache: enabled, doesn't support DPO or FUA
Oct 27 11:33:46 Arzamas kernel: end_request: I/O error, dev sde, sector
488166955
Oct 27 11:33:46 Arzamas kernel: md: super_written gets error=-5, uptodate=0
Oct 27 11:33:46 Arzamas kernel: raid10: Disk failure on sde2, disabling
device.
Oct 27 11:33:46 Arzamas kernel: raid10: Operation continuing on 3 devices.
Oct 27 11:33:46 Arzamas kernel: RAID10 conf printout:
Oct 27 11:33:46 Arzamas kernel: --- wd:3 rd:4
Oct 27 11:33:46 Arzamas kernel: disk 0, wo:0, o:1, dev:sdc2
Oct 27 11:33:46 Arzamas kernel: disk 1, wo:0, o:1, dev:sdb2
Oct 27 11:33:46 Arzamas kernel: disk 2, wo:1, o:0, dev:sde2
Oct 27 11:33:46 Arzamas kernel: disk 3, wo:0, o:1, dev:sdd2
Oct 27 11:33:46 Arzamas kernel: RAID10 conf printout:
Oct 27 11:33:46 Arzamas kernel: --- wd:3 rd:4
Oct 27 11:33:46 Arzamas kernel: disk 0, wo:0, o:1, dev:sdc2
Oct 27 11:33:46 Arzamas kernel: disk 1, wo:0, o:1, dev:sdb2
Oct 27 11:33:46 Arzamas kernel: disk 3, wo:0, o:1, dev:sdd2

Afterwards I removed sde from all arrays and mounts, and grilled it repeatedly with badblocks and smartctl -t long. Nothing came out for over a day. Below see the smartclt -a output. This happened one day after I upgraded to 2.6.27.4 from 2.6.23.

Can someone please tell me what seems to be dying? Thank you!

root@Arzamas:~# smartctl -a /dev/sde
smartctl version 5.38 [i686-pc-linux-gnu] Copyright (C) 2002-8 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF INFORMATION SECTION ===

Model Family:     Western Digital Caviar Second Generation Serial ATA family
Device Model:     WDC WD2500AAJS-00B4A0
Serial Number:    WD-WCAT11669666
Firmware Version: 01.03A01
User Capacity:    250,059,350,016 bytes
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   8
ATA Standard is:  Exact ATA specification draft version not indicated
Local Time is:    Tue Oct 28 19:52:16 2008 EDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status: (0x82) Offline data collection activity
was completed without error. Auto Offline Data Collection: Enabled.
Self-test execution status: ( 0) The previous self-test routine
completed
without error or no self-test has ever been run.
Total time to complete Offline
data collection: (6180) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support. Suspend Offline collection upon new command.
Offline surface scan supported. Self-test supported. Conveyance Self-test supported. Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 75) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x303f) SCT Status supported.
SCT Feature Control supported. SCT Data Table supported.

SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE
UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always
- 0
3 Spin_Up_Time 0x0027 175 153 021 Pre-fail Always
- 2250
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always
- 17
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always
- 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always
- 0
9 Power_On_Hours 0x0032 100 100 000 Old_age Always
- 694
10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always
- 0
11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always
- 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always
- 17
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always
- 13
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always
- 17
194 Temperature_Celsius 0x0022 106 100 000 Old_age Always
- 37
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always
- 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always
- 0
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age
Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always
- 0
200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age
Offline - 0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num Test_Description Status Remaining
LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 694

     -
# 2  Extended offline    Completed without error       00%       684
     -
# 3  Extended offline    Completed without error       00%       663
     -
# 4  Short offline       Aborted by host               60%       662
     -
# 5  Short offline       Completed without error       00%       662
     -

SMART Selective self-test log data structure revision number 1

 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing

Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

root@Arzamas:~#

Oct 27 11:33:46 Arzamas kernel: end_request: I/O error, dev sde, sector

488166955

Disk is going bad, I had the same problem, a week later, it was another I/O error, a week after that, another I/O error, replace/RMA disk.

Justin.

The saga continues. After replacing the drive (and I didn't make a mistake as the serial numbers don't match) I got _exaclty_ the same error a week later. I have replaced the cable for the drive in question,
will see what happens. The controller is:

02:03.0 Mass storage controller: Silicon Image, Inc. SiI 3124 PCI-X Serial ATA Controller (rev 02)
Subsystem: Silicon Image, Inc. SiI 3124 PCI-X Serial ATA Controller
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV+ VGASnoop- ParErr+
Stepping+ SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-

	Latency: 64, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 25
	Region 0: Memory at fc5fd800 (64-bit, non-prefetchable) [size=128]
	Region 2: Memory at fc5f0000 (64-bit, non-prefetchable) [size=32K]
	Region 4: I/O ports at b000 [size=16]
	Expansion ROM at fc480000 [disabled] [size=512K]
	Capabilities: [64] Power Management version 2
		Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=1 PME-
	Capabilities: [40] PCI-X non-bridge device
		Command: DPERE- ERO+ RBC=512 OST=12
		Status: Dev=ff:1f.0 64bit+ 133MHz+ SCD- USC- DC=simple DMMRBC=2048
DMOST=12 DMCRS=128 RSCEM- 266MHz- 533MHz-
	Capabilities: [54] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0
Enable-
		Address: 0000000000000000  Data: 0000
	Kernel driver in use: sata_sil24

Anyone has any bright ideas?

Thanks

New log follows:

Nov  8 15:41:18 Arzamas kernel: ata6.00: exception Emask 0x10 SAct 0x0
SErr 0x80000 action 0xe frozen
Nov  8 15:41:18 Arzamas kernel: ata6.00: irq_stat 0x01100010, PHY RDY
changed
Nov  8 15:41:18 Arzamas kernel: ata6: SError: { 10B8B }
Nov  8 15:41:18 Arzamas kernel: ata6.00: cmd
ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0
Nov  8 15:41:18 Arzamas kernel: res 06/37:00:00:00:00/00:00:00:00:06/00
Emask 0x12 (ATA bus error)
Nov  8 15:41:18 Arzamas kernel: ata6.00: error: { IDNF ABRT }
Nov  8 15:41:18 Arzamas kernel: ata6: hard resetting link
Nov  8 15:41:22 Arzamas kernel: ata6: SATA link up 3.0 Gbps (SStatus 123
SControl 0)
Nov  8 15:41:22 Arzamas kernel: ata6.00: configured for UDMA/100
Nov  8 15:41:22 Arzamas kernel: ata6: EH complete
Nov  8 15:41:22 Arzamas kernel: sd 6:0:0:0: [sde] 488397168 512-byte
hardware sectors (250059 MB)
Nov  8 15:41:22 Arzamas kernel: sd 6:0:0:0: [sde] Write Protect is off
Nov  8 15:41:22 Arzamas kernel: sd 6:0:0:0: [sde] Mode Sense: 00 3a 00 00
Nov  8 15:41:22 Arzamas kernel: sd 6:0:0:0: [sde] Write cache: enabled,
read cache: enabled, doesn't support DPO or FUA
Nov  8 15:41:22 Arzamas kernel: end_request: I/O error, dev sde, sector
488166955
Nov  8 15:41:22 Arzamas kernel: md: super_written gets error=-5, uptodate=0
Nov  8 15:41:22 Arzamas kernel: raid10: Disk failure on sde2, disabling
device.
Nov  8 15:41:22 Arzamas kernel: raid10: Operation continuing on 3 devices.

smartctl -a of new drive:

smartctl version 5.38 [i686-pc-linux-gnu] Copyright (C) 2002-8 Bruce Allen Home page is http://smartmontools.sourceforge.net/

=== START OF INFORMATION SECTION ===

Model Family:     Western Digital Caviar Second Generation Serial ATA family
Device Model:     WDC WD2500AAJS-08B4A0
Serial Number:    WD-WMAT14036837
Firmware Version: 01.03A01
User Capacity:    250,059,350,016 bytes
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   8
ATA Standard is:  Exact ATA specification draft version not indicated
Local Time is:    Fri Nov 14 13:22:23 2008 EST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status: (0x84) Offline data collection activity
was suspended by an interrupting command from host. Auto Offline Data Collection: Enabled.
Self-test execution status: ( 0) The previous self-test routine
completed
without error or no self-test has ever been run.
Total time to complete Offline
data collection: (5580) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support. Suspend Offline collection upon new command.
Offline surface scan supported. Self-test supported.
Conveyance Self-test supported. Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 68) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x303f) SCT Status supported.
SCT Feature Control supported.
SCT Data Table supported.

SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE
UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always
- 0
3 Spin_Up_Time 0x0027 174 174 021 Pre-fail Always
- 2266
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always
- 9
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always
- 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always
- 0
9 Power_On_Hours 0x0032 100 100 000 Old_age Always
- 329
10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always
- 0
11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always
- 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always
- 7
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always
- 6
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always
- 9
194 Temperature_Celsius 0x0022 106 103 000 Old_age Always
- 37
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always
- 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always
- 0
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age
Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always
- 0
200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age
Offline - 0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num Test_Description Status Remaining
LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 20

     -
# 2  Extended offline    Completed without error       00%        14
     -
# 3  Short offline       Completed without error       00%         1
     -

SMART Selective self-test log data structure revision number 1

 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing

Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

Hm, someone else also has similar problems, maybe we ought to buy new hw or something, I have the same/similar issue as you.

BTW, after that error, if you re-run a short/long test, do they succeed or hang (never complete)?

Justin.

Here is the bugzilla URL he created:
https://bugzilla.redhat.com/show_bug.cgi?id=462425

What type of motherboard do you have?

I have that error and it occurs on sata_mv, Intel ICH8 and sil24, I don't think its related to the card(s) themselves.

Justin.

These posts might be worth sending to linux-ide.

Regards,

Richard

I have a whole bunch, but here is the last one:

[64894.610696] ata9.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[64894.610703] ata9.00: irq_stat 0x00020002, device error via D2H FIS
[64894.610708] ata9.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[64894.610709]          res 51/04:00:34:cf:f3/00:00:00:f3:40/a3 Emask 0x1 (devic
e error)
[64894.610714] ata9.00: status: { DRDY ERR }
[64894.610718] ata9.00: error: { ABRT }
[64894.626437] ata9.00: configured for UDMA/100
[64894.626449] ata9: EH complete
[64894.626654] sd 8:0:0:0: [sdh] 586072368 512-byte hardware sectors (300069 MB)
[64894.637744] end_request: I/O error, dev sdh, sector 586067135
[64894.637759] md: super_written gets error=-5, uptodate=0
[64894.637762] raid5: Disk failure on sdh1, disabling device.
[64894.637763] raid5: Operation continuing on 9 devices.
[64894.638129] sd 8:0:0:0: [sdh] Write Protect is off
[64894.638131] sd 8:0:0:0: [sdh] Mode Sense: 00 3a 00 00
[64894.638148] sd 8:0:0:0: [sdh] Write cache: enabled, read cache: enabled, does

n't support DPO or FUA

Justin.

Here are some more:

Jul 14 05:54:55 p34 kernel: [478107.751877] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Jul 14 05:54:55 p34 kernel: [478107.751883] ata4.00: irq_stat 0x40000001
Jul 14 05:54:55 p34 kernel: [478107.751889] ata4.00: cmd 25/00:f8:08:b0:ee/00:00:22:00:00/e0 tag 0 dma 126976 in
Jul 14 05:54:55 p34 kernel: [478107.751890]          res 51/40:f8:47:b0:ee/00:00:22:00:00/e0 Emask 0x9 (media error)
Jul 14 05:54:55 p34 kernel: [478107.751895] ata4.00: status: { DRDY ERR }
Jul 14 05:54:55 p34 kernel: [478107.751898] ata4.00: error: { UNC }
Jul 14 05:54:55 p34 kernel: [478107.773836] ata4.00: configured for UDMA/133
Jul 14 05:54:55 p34 kernel: [478107.773845] ata4: EH complete
Jul 14 05:54:55 p34 kernel: [478107.844912] sd 3:0:0:0: [sdd] 586072368 512-byte hardware sectors (300069 MB)
Jul 14 05:54:55 p34 kernel: [478107.846321] sd 3:0:0:0: [sdd] Write Protect is off
Jul 14 05:54:55 p34 kernel: [478107.846325] sd 3:0:0:0: [sdd] Mode Sense: 00 3a 00 00
Jul 14 05:54:55 p34 kernel: [478107.849297] sd 3:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

Oct 12 09:25:22 p34 kernel: [1434196.959129] ata6.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Oct 12 09:25:30 p34 kernel: [1434196.959137] ata6.00: irq_stat 0x40000001
Oct 12 09:25:30 p34 kernel: [1434196.959142] ata6.00: cmd 25/00:00:00:af:ee/00:02:22:00:00/e0 tag 0 dma 262144 in
Oct 12 09:25:30 p34 kernel: [1434196.959144]          res 51/40:00:4f:b0:ee/00:02:22:00:00/e0 Emask 0x9 (media error)
Oct 12 09:25:30 p34 kernel: [1434196.959149] ata6.00: status: { DRDY ERR }
Oct 12 09:25:30 p34 kernel: [1434196.959152] ata6.00: error: { UNC }
Oct 12 09:25:30 p34 kernel: [1434196.999110] ata6.00: configured for UDMA/133
Oct 12 09:25:30 p34 kernel: [1434196.999144] ata6: EH complete
Oct 12 09:25:30 p34 kernel: [1434203.096157] ata6.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Oct 12 09:25:30 p34 kernel: [1434203.096165] ata6.00: irq_stat 0x40000001
Oct 12 09:25:30 p34 kernel: [1434203.096171] ata6.00: cmd 25/00:00:00:af:ee/00:02:22:00:00/e0 tag 0 dma 262144 in
Oct 12 09:25:30 p34 kernel: [1434203.096172]          res 51/40:00:4f:b0:ee/00:02:22:00:00/e0 Emask 0x9 (media error)
Oct 12 09:25:30 p34 kernel: [1434203.096177] ata6.00: status: { DRDY ERR }
Oct 12 09:25:30 p34 kernel: [1434203.096181] ata6.00: error: { UNC }
Oct 12 09:25:30 p34 kernel: [1434203.104811] ata6.00: configured for UDMA/133
Oct 12 09:25:30 p34 kernel: [1434203.104819] ata6: EH complete

Nov  9 09:25:19 p34 kernel: [ 3686.460568] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Nov  9 09:25:19 p34 kernel: [ 3686.460574] ata4.00: irq_stat 0x40000001
Nov  9 09:25:19 p34 kernel: [ 3686.460579] ata4.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0
Nov  9 09:25:19 p34 kernel: [ 3686.460580]          res 51/10:00:34:cf:f3/00:00:00:f3:40/a3 Emask 0x81 (invalid argument)
Nov  9 09:25:19 p34 kernel: [ 3686.460585] ata4.00: status: { DRDY ERR }
Nov  9 09:25:19 p34 kernel: [ 3686.460589] ata4.00: error: { IDNF }
Nov  9 09:25:24 p34 kernel: [ 3691.461173] ata4.00: qc timeout (cmd 0xec)
Nov  9 09:25:24 p34 kernel: [ 3691.461183] ata4.00: failed to IDENTIFY (I/O error, err_mask=0x5)
Nov  9 09:25:24 p34 kernel: [ 3691.461187] ata4.00: revalidation failed (errno=-5)
Nov  9 09:25:24 p34 kernel: [ 3691.461192] ata4: hard resetting link
Nov  9 09:25:24 p34 kernel: [ 3691.766178] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
Nov  9 09:25:24 p34 kernel: [ 3691.803834] ata4.00: configured for UDMA/133
Nov  9 09:25:24 p34 kernel: [ 3691.803846] end_request: I/O error, dev sdd, sector 586067135
Nov  9 09:25:24 p34 kernel: [ 3691.803849] md: super_written gets error=-5, uptodate=0
Nov  9 09:25:24 p34 kernel: [ 3691.803853] raid5: Disk failure on sdd1, disabling device.
Nov  9 09:25:24 p34 kernel: [ 3691.803854] raid5: Operation continuing on 8 devices.

Nov 12 01:22:28 p34 kernel: [64894.610696] ata9.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Nov 12 01:22:28 p34 kernel: [64894.610703] ata9.00: irq_stat 0x00020002, device error via D2H FIS
Nov 12 01:22:28 p34 kernel: [64894.610708] ata9.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0
Nov 12 01:22:28 p34 kernel: [64894.610709]          res 51/04:00:34:cf:f3/00:00:00:f3:40/a3 Emask 0x1 (device error)
Nov 12 01:22:28 p34 kernel: [64894.610714] ata9.00: status: { DRDY ERR }
Nov 12 01:22:28 p34 kernel: [64894.610718] ata9.00: error: { ABRT }
Nov 12 01:22:28 p34 kernel: [64894.626437] ata9.00: configured for UDMA/100
Nov 12 01:22:28 p34 kernel: [64894.626449] ata9: EH complete
Nov 12 01:22:28 p34 kernel: [64894.626654] sd 8:0:0:0: [sdh] 586072368 512-byte hardware sectors (300069 MB)
Nov 12 01:22:28 p34 kernel: [64894.637744] end_request: I/O error, dev sdh, sector 586067135
Nov 12 01:22:28 p34 kernel: [64894.637759] md: super_written gets error=-5, uptodate=0
Nov 12 01:22:28 p34 kernel: [64894.637762] raid5: Disk failure on sdh1, disabling device.
Nov 12 01:22:28 p34 kernel: [64894.637763] raid5: Operation continuing on 9 devices.
Nov 12 01:22:28 p34 kernel: [64894.638129] sd 8:0:0:0: [sdh] Write Protect is off
Nov 12 01:22:28 p34 kernel: [64894.638131] sd 8:0:0:0: [sdh] Mode Sense: 00 3a 00 00
Nov 12 01:22:28 p34 kernel: [64894.638148] sd 8:0:0:0: [sdh] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

Drive reporting an uncorrectable error on a read command.

Flush cache returned ID not found (drive couldn't find a sector)

Flush cache returned command aborted, presumably because the write to media failed.

Looks like some sick drives, or some other more global problem (power, temperature, etc.) to me..

But an _identical_ sector number? Looks too unlikely... I might try to crank open hexedit and write repeatedly to this place. Sectors are still 512 bytes right?

Peter

They succeed with flying colors. Moreover I had badblocks -svw running at the same time (so the drive was really loaded). And I did this repeatedly with the first one - no issues.

Peter