Re: errors on shutdown with PMP

2007-07-31 Thread Petr Vandrovec

Tejun Heo wrote:

Marc Bejarano wrote:

At 03:33 7/28/2007, Tejun Heo wrote:

Device times out write.

odd that it would be able to be part of an lv's filesystem that had
hundreds of gigabytes recently written to it and then choke on flushing
during shutdown.


And then never comes back.

asleep at the wheel ;)


Please post the result of 'smartctl -a /dev/sdX' where sdX is the device
which went offline.

i suppose i should have seen that coming.  here you go:
===
[EMAIL PROTECTED] ~]# /usr/local/sbin/smartctl -a /dev/sdc
smartctl version 5.37 [x86_64-unknown-linux-gnu] Copyright (C) 2002-6
Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF INFORMATION SECTION ===
Model Family: Seagate Barracuda 7200.10 family
Device Model: ST3750640AS

[--snip--]
ID# ATTRIBUTE_NAME  FLAG VALUE WORST THRESH TYPE 
UPDATED  WHEN_FAILED RAW_VALUE

  1 Raw_Read_Error_Rate 0x000f   090   079   006Pre-fail  Always
 -   66902364
  5 Reallocated_Sector_Ct   0x0033   100   100   036Pre-fail  Always
 -   31
  7 Seek_Error_Rate 0x000f   081   060   030Pre-fail  Always
 -   146651228
195 Hardware_ECC_Recovered  0x001a   056   049   000Old_age   Always
 -   102514302
198 Offline_Uncorrectable   0x0010   099   099   000Old_age  
Offline  -   40


Counters don't look too friendly.  Do you happen to have another drive
of the same model?  If so, can you post smartctl -a of the drive?


Offline_Uncorrectable looks bad, as well as Reallocated_Sector_Ct... 
For Raw_Read_Error_Rate/Seek_Error_Rate/Hardware_ECC_Recovered it is how 
Seagates work:


gwy:~# for a in /dev/sd[a-f]; do smartctl -a $a; done | grep 
'\(Raw_Read\|Seek_Error\|Hardware_ECC\|Offline_Uncorr\|Reallocated\|^Device 
M\|^Firmware\)'

Device Model: Hitachi HDT725032VLA380
Firmware Version: V54OA52A
  1 Raw_Read_Error_Rate 0x000b   100   100   016Pre-fail 
Always   -   0
  5 Reallocated_Sector_Ct   0x0033   100   100   005Pre-fail 
Always   -   0
  7 Seek_Error_Rate 0x000b   100   100   067Pre-fail 
Always   -   0
196 Reallocated_Event_Count 0x0032   100   100   000Old_age   Always 
  -   0
198 Offline_Uncorrectable   0x0008   100   100   000Old_age 
Offline  -   0

Device Model: Hitachi HDS721010KLA330
Firmware Version: GKAOA70F
  1 Raw_Read_Error_Rate 0x000b   100   100   016Pre-fail 
Always   -   0
  5 Reallocated_Sector_Ct   0x0033   100   100   005Pre-fail 
Always   -   0
  7 Seek_Error_Rate 0x000b   100   100   067Pre-fail 
Always   -   0
196 Reallocated_Event_Count 0x0032   100   100   000Old_age   Always 
  -   0
198 Offline_Uncorrectable   0x0008   100   100   000Old_age 
Offline  -   0

Device Model: ST3750640AS
Firmware Version: 3.AAE
  1 Raw_Read_Error_Rate 0x000f   110   087   006Pre-fail 
Always   -   201790283
  5 Reallocated_Sector_Ct   0x0033   100   100   036Pre-fail 
Always   -   0
  7 Seek_Error_Rate 0x000f   076   060   030Pre-fail 
Always   -   43520234
195 Hardware_ECC_Recovered  0x001a   059   050   000Old_age   Always 
  -   40212951
198 Offline_Uncorrectable   0x0010   100   100   000Old_age 
Offline  -   0

Device Model: Hitachi HDS721010KLA330
Firmware Version: GKAOA70F
  1 Raw_Read_Error_Rate 0x000b   100   100   016Pre-fail 
Always   -   0
  5 Reallocated_Sector_Ct   0x0033   100   100   005Pre-fail 
Always   -   0
  7 Seek_Error_Rate 0x000b   100   100   067Pre-fail 
Always   -   0
196 Reallocated_Event_Count 0x0032   100   100   000Old_age   Always 
  -   0
198 Offline_Uncorrectable   0x0008   100   100   000Old_age 
Offline  -   0

Device Model: ST3750640AS
Firmware Version: 3.AAD
  1 Raw_Read_Error_Rate 0x000f   114   083   006Pre-fail 
Always   -   121388046
  5 Reallocated_Sector_Ct   0x0033   100   100   036Pre-fail 
Always   -   0
  7 Seek_Error_Rate 0x000f   078   065   030Pre-fail 
Always   -   78605591
195 Hardware_ECC_Recovered  0x001a   066   050   000Old_age   Always 
  -   194670617
198 Offline_Uncorrectable   0x0010   100   100   000Old_age 
Offline  -   0

Device Model: Sans Digital V.36.B0D
Firmware Version: V.36.B0D


BTW, sdb-sde are behind PMP, no problems on shutdown.  Funniest is that 
all these counters are 32bit, so during day you see like your disk is 
estimated to die in 5 days, then suddenly that 32bit counter overflows, 
and your disk is again healthy as possible.  I did not measure what 
these counters actually count on these 750GB drives, but on 100GB 
notebook Seagate drive every sector read counts as 3-5 ECC errors, and 
every Smart data interrogation as 1...


Re: errors on shutdown with PMP

2007-07-31 Thread Marc Bejarano

At 00:32 7/31/2007, Tejun Heo wrote:
Marc Bejarano wrote:
 At 03:33 7/28/2007, Tejun Heo wrote:
Please post the result of 'smartctl -a /dev/sdX' where sdX is the device
which went offline.

 i suppose i should have seen that coming.  here you go:
 ===
 [EMAIL PROTECTED] ~]# /usr/local/sbin/smartctl -a /dev/sdc
 smartctl version 5.37 [x86_64-unknown-linux-gnu] Copyright (C) 2002-6
 Bruce Allen
 Home page is http://smartmontools.sourceforge.net/

 === START OF INFORMATION SECTION ===
 Model Family: Seagate Barracuda 7200.10 family
 Device Model: ST3750640AS
[--snip--]
 ID# ATTRIBUTE_NAME  FLAG VALUE WORST THRESH TYPE
 UPDATED  WHEN_FAILED RAW_VALUE
   1 Raw_Read_Error_Rate 0x000f   090   079   006Pre-fail  Always
  -   66902364
   5 Reallocated_Sector_Ct   0x0033   100   100   036Pre-fail  Always
  -   31
   7 Seek_Error_Rate 0x000f   081   060   030Pre-fail  Always
  -   146651228
 195 Hardware_ECC_Recovered  0x001a   056   049   000Old_age   Always
  -   102514302
 198 Offline_Uncorrectable   0x0010   099   099   000Old_age
 Offline  -   40

Counters don't look too friendly.  Do you happen to have another drive
of the same model?

about 100 or so of them ;)

If so, can you post smartctl -a of the drive?

here are the other two drives in the unhappy lv:
===

[EMAIL PROTECTED] ~]# smartctl -a /dev/sdg
smartctl version 5.33 [x86_64-redhat-linux-gnu] Copyright (C) 2002-4 
Bruce Allen

Home page is http://smartmontools.sourceforge.net/

Device: ATA  ST3750640AS  Version: 3.AA
Serial number: 5QD05VBA
Device type: disk
Local Time is: Tue Jul 31 12:14:00 2007 EDT
Device does not support SMART
Request Sense failed, [Input/output error]

Error Counter logging not supported

Error Events logging not supported

[GLTSD (Global Logging Target Save Disable) set. Enable Save with '-S on']
Device does not support Self Test logging
[EMAIL PROTECTED] ~]# /usr/local/sbin/smartctl -a /dev/sdg
smartctl version 5.37 [x86_64-unknown-linux-gnu] Copyright (C) 2002-6 
Bruce Allen

Home page is http://smartmontools.sourceforge.net/

=== START OF INFORMATION SECTION ===
Model Family: Seagate Barracuda 7200.10 family
Device Model: ST3750640AS
Serial Number:5QD05VBA
Firmware Version: 3.AAE
User Capacity:750,156,374,016 bytes
Device is:In smartctl database [for details use: -P show]
ATA Version is:   7
ATA Standard is:  Exact ATA specification draft version not indicated
Local Time is:Tue Jul 31 12:14:11 2007 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: ( 430) seconds.
Offline data collection
capabilities:(0x5b) SMART execute Offline immediate.
Auto Offline data collection 
on/off support.

Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No 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:(   1) minutes.
Extended self-test routine
recommended polling time:( 202) minutes.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME  FLAG VALUE WORST THRESH 
TYPE  UPDATED  WHEN_FAILED RAW_VALUE
  1 
Raw_Read_Error_Rate 0x000f   091   082   006Pre-fail  Always 
 -   226717799
  3 
Spin_Up_Time0x0003   093   093   000Pre-fail  Always 
 -   0
  4 
Start_Stop_Count0x0032   100   100   020Old_age   Always 
 -   13
  5 
Reallocated_Sector_Ct   0x0033   100   100   036Pre-fail  Always 
 -   15
  7 
Seek_Error_Rate 0x000f   081   060   030

Re: errors on shutdown with PMP

2007-07-31 Thread Tejun Heo
Hello,

Marc Bejarano wrote:
Counters don't look too friendly.  Do you happen to have another drive
of the same model?
 
 about 100 or so of them ;)

Cool.

If so, can you post smartctl -a of the drive?
 
 here are the other two drives in the unhappy lv:
[--snip--]
   5 Reallocated_Sector_Ct   0x0033   100   100   036Pre-fail  Always
  -   15
 198 Offline_Uncorrectable   0x0010   100   100   000Old_age  
 Offline  -   0
[--snip--]
   5 Reallocated_Sector_Ct   0x0033   100   100   036Pre-fail  Always
  -   0
 198 Offline_Uncorrectable   0x0010   100   100   000Old_age  
 Offline  -   0

Offline uncorrectable is zero on both drives.  I think it's likely that
the not-responding drive is faulty.  Note that write command usually
complete right after it fills the buffer, so write errors often show up
on cache flush.  Also, write failure usually means that even
reallocation failed and the drive is in pretty bad shape.

Thanks.

-- 
tejun
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Re: errors on shutdown with PMP

2007-07-30 Thread Marc Bejarano

At 03:33 7/28/2007, Tejun Heo wrote:
Device times out write.

odd that it would be able to be part of an lv's filesystem that had 
hundreds of gigabytes recently written to it and then choke on 
flushing during shutdown.


And then never comes back.

asleep at the wheel ;)

Please post the result of 'smartctl -a /dev/sdX' where sdX is the device
which went offline.

i suppose i should have seen that coming.  here you go:
===
[EMAIL PROTECTED] ~]# /usr/local/sbin/smartctl -a /dev/sdc
smartctl version 5.37 [x86_64-unknown-linux-gnu] Copyright (C) 2002-6 
Bruce Allen

Home page is http://smartmontools.sourceforge.net/

=== START OF INFORMATION SECTION ===
Model Family: Seagate Barracuda 7200.10 family
Device Model: ST3750640AS
Serial Number:5QD05YFC
Firmware Version: 3.AAE
User Capacity:750,156,374,016 bytes
Device is:In smartctl database [for details use: -P show]
ATA Version is:   7
ATA Standard is:  Exact ATA specification draft version not indicated
Local Time is:Mon Jul 30 23:00:27 2007 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: ( 430) seconds.
Offline data collection
capabilities:(0x5b) SMART execute Offline immediate.
Auto Offline data collection 
on/off support.

Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No 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:(   1) minutes.
Extended self-test routine
recommended polling time:( 202) minutes.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME  FLAG VALUE WORST THRESH 
TYPE  UPDATED  WHEN_FAILED RAW_VALUE
  1 
Raw_Read_Error_Rate 0x000f   090   079   006Pre-fail  Always 
 -   66902364
  3 
Spin_Up_Time0x0003   093   093   000Pre-fail  Always 
 -   0
  4 
Start_Stop_Count0x0032   100   100   020Old_age   Always 
 -   13
  5 
Reallocated_Sector_Ct   0x0033   100   100   036Pre-fail  Always 
 -   31
  7 
Seek_Error_Rate 0x000f   081   060   030Pre-fail  Always 
 -   146651228
  9 
Power_On_Hours  0x0032   098   098   000Old_age   Always 
 -   2190
 10 
Spin_Retry_Count0x0013   100   100   097Pre-fail  Always 
 -   0
 12 
Power_Cycle_Count   0x0032   100   100   020Old_age   Always 
 -   25
187 
Unknown_Attribute   0x0032   001   001   000Old_age   Always 
 -   810
189 
Unknown_Attribute   0x003a   100   100   000Old_age   Always 
 -   0
190 
Temperature_Celsius 0x0022   063   057   045Old_age   Always 
 -   68647119028261
194 
Temperature_Celsius 0x0022   037   043   000Old_age   Always 
 -   37 (Lifetime Min/Max 0/32)
195 
Hardware_ECC_Recovered  0x001a   056   049   000Old_age   Always 
 -   102514302
197 
Current_Pending_Sector  0x0012   099   099   000Old_age   Always 
 -   40
198 
Offline_Uncorrectable   0x0010   099   099   000Old_age   Offline 
 -   40
199 
UDMA_CRC_Error_Count0x003e   200   200   000Old_age   Always 
 -   0
200 
Multi_Zone_Error_Rate   0x   100   253   000Old_age   Offline 
 -   0
202 
TA_Increase_Count   0x0032   100   253   000Old_age   Always 
 -   0


SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
100  Not_testing
200  

Re: errors on shutdown with PMP

2007-07-30 Thread Tejun Heo
Marc Bejarano wrote:
 At 03:33 7/28/2007, Tejun Heo wrote:
Device times out write.
 
 odd that it would be able to be part of an lv's filesystem that had
 hundreds of gigabytes recently written to it and then choke on flushing
 during shutdown.
 
And then never comes back.
 
 asleep at the wheel ;)
 
Please post the result of 'smartctl -a /dev/sdX' where sdX is the device
which went offline.
 
 i suppose i should have seen that coming.  here you go:
 ===
 [EMAIL PROTECTED] ~]# /usr/local/sbin/smartctl -a /dev/sdc
 smartctl version 5.37 [x86_64-unknown-linux-gnu] Copyright (C) 2002-6
 Bruce Allen
 Home page is http://smartmontools.sourceforge.net/
 
 === START OF INFORMATION SECTION ===
 Model Family: Seagate Barracuda 7200.10 family
 Device Model: ST3750640AS
[--snip--]
 ID# ATTRIBUTE_NAME  FLAG VALUE WORST THRESH TYPE 
 UPDATED  WHEN_FAILED RAW_VALUE
   1 Raw_Read_Error_Rate 0x000f   090   079   006Pre-fail  Always
  -   66902364
   5 Reallocated_Sector_Ct   0x0033   100   100   036Pre-fail  Always
  -   31
   7 Seek_Error_Rate 0x000f   081   060   030Pre-fail  Always
  -   146651228
 195 Hardware_ECC_Recovered  0x001a   056   049   000Old_age   Always
  -   102514302
 198 Offline_Uncorrectable   0x0010   099   099   000Old_age  
 Offline  -   40

Counters don't look too friendly.  Do you happen to have another drive
of the same model?  If so, can you post smartctl -a of the drive?

-- 
tejun
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Re: errors on shutdown with PMP

2007-07-28 Thread Tejun Heo
Hello, Marc.

Marc Bejarano wrote:
 hi, tejun.  i've been using your libata-tj-2.6.22-rc6-20070702 kernel on
 a centos 4 machine for a while with some 3124's and 3726's.  up until
 today, i hadn't seen any issues.
 
 while trying to shut the machine down, this happened:
 ===
 Jul 27 14:58:44 dell shutdown: shutting down for system halt
 Jul 27 14:59:15 dell kernel: ata8.00: exception Emask 0x0 SAct 0x1 SErr
 0x0 action 0x2 frozen
 Jul 27 14:59:15 dell kernel: ata8.00: cmd
 61/10:00:a7:0a:00/00:00:00:00:00/40 tag 0 cdb 0x0 data 8192 out
 Jul 27 14:59:15 dell kernel:  res
 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)

Device times out write.

 Jul 27 14:59:15 dell kernel: ata8.15: hard resetting link
 Jul 27 14:59:17 dell kernel: ata8.15: SATA link up 3.0 Gbps (SStatus 123
 SControl 0)
 Jul 27 14:59:17 dell kernel: ata8.00: hard resetting link
 Jul 27 14:59:27 dell kernel: ata8.00: softreset failed (timeout)
 Jul 27 14:59:27 dell kernel: ata8.00: hard resetting link
 Jul 27 14:59:28 dell kernel: ata8.00: COMRESET failed (errno=-5)
 Jul 27 14:59:28 dell kernel: ata8.00: reset failed, giving up
 Jul 27 14:59:28 dell kernel: ata8.15: hard resetting link
 Jul 27 14:59:38 dell kernel: ata8.15: softreset failed (timeout)
 Jul 27 14:59:38 dell kernel: ata8.15: hard resetting link
 Jul 27 14:59:40 dell kernel: ata8.15: SATA link up 3.0 Gbps (SStatus 123
 SControl 0)
 Jul 27 14:59:40 dell kernel: ata8.00: hard resetting link
 Jul 27 14:59:50 dell kernel: ata8.00: softreset failed (timeout)
 Jul 27 14:59:50 dell kernel: ata8.00: hard resetting link
 Jul 27 14:59:51 dell kernel: ata8.00: COMRESET failed (errno=-5)
 Jul 27 14:59:51 dell kernel: ata8.00: reset failed, giving up
 Jul 27 14:59:51 dell kernel: ata8.15: hard resetting link
 Jul 27 15:00:01 dell kernel: ata8.15: softreset failed (timeout)
 Jul 27 15:00:01 dell kernel: ata8.15: hard resetting link
 Jul 27 15:00:03 dell kernel: ata8.15: SATA link up 3.0 Gbps (SStatus 123
 SControl 0)
 Jul 27 15:00:03 dell kernel: ata8.00: hard resetting link
 Jul 27 15:00:13 dell kernel: ata8.00: softreset failed (timeout)
 Jul 27 15:00:13 dell kernel: ata8.00: hard resetting link
 Jul 27 15:00:14 dell kernel: ata8.00: COMRESET failed (errno=-5)
 Jul 27 15:00:14 dell kernel: ata8.00: reset failed, giving up
 Jul 27 15:00:14 dell kernel: ata8.00: failed to recover link after 3
 tries, disabling
 Jul 27 15:00:14 dell kernel: ata8.00: disabled

And then never comes back.

Please post the result of 'smartctl -a /dev/sdX' where sdX is the device
which went offline.

-- 
tejun
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errors on shutdown with PMP

2007-07-27 Thread Marc Bejarano
hi, tejun.  i've been using your libata-tj-2.6.22-rc6-20070702 kernel 
on a centos 4 machine for a while with some 3124's and 3726's.  up 
until today, i hadn't seen any issues.


while trying to shut the machine down, this happened:
===
Jul 27 14:58:44 dell shutdown: shutting down for system halt
Jul 27 14:59:15 dell kernel: ata8.00: exception Emask 0x0 SAct 0x1 
SErr 0x0 action 0x2 frozen
Jul 27 14:59:15 dell kernel: ata8.00: cmd 
61/10:00:a7:0a:00/00:00:00:00:00/40 tag 0 cdb 0x0 data 8192 out
Jul 27 14:59:15 dell kernel:  res 
40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)

Jul 27 14:59:15 dell kernel: ata8.15: hard resetting link
Jul 27 14:59:17 dell kernel: ata8.15: SATA link up 3.0 Gbps (SStatus 
123 SControl 0)

Jul 27 14:59:17 dell kernel: ata8.00: hard resetting link
Jul 27 14:59:27 dell kernel: ata8.00: softreset failed (timeout)
Jul 27 14:59:27 dell kernel: ata8.00: hard resetting link
Jul 27 14:59:28 dell kernel: ata8.00: COMRESET failed (errno=-5)
Jul 27 14:59:28 dell kernel: ata8.00: reset failed, giving up
Jul 27 14:59:28 dell kernel: ata8.15: hard resetting link
Jul 27 14:59:38 dell kernel: ata8.15: softreset failed (timeout)
Jul 27 14:59:38 dell kernel: ata8.15: hard resetting link
Jul 27 14:59:40 dell kernel: ata8.15: SATA link up 3.0 Gbps (SStatus 
123 SControl 0)

Jul 27 14:59:40 dell kernel: ata8.00: hard resetting link
Jul 27 14:59:50 dell kernel: ata8.00: softreset failed (timeout)
Jul 27 14:59:50 dell kernel: ata8.00: hard resetting link
Jul 27 14:59:51 dell kernel: ata8.00: COMRESET failed (errno=-5)
Jul 27 14:59:51 dell kernel: ata8.00: reset failed, giving up
Jul 27 14:59:51 dell kernel: ata8.15: hard resetting link
Jul 27 15:00:01 dell kernel: ata8.15: softreset failed (timeout)
Jul 27 15:00:01 dell kernel: ata8.15: hard resetting link
Jul 27 15:00:03 dell kernel: ata8.15: SATA link up 3.0 Gbps (SStatus 
123 SControl 0)

Jul 27 15:00:03 dell kernel: ata8.00: hard resetting link
Jul 27 15:00:13 dell kernel: ata8.00: softreset failed (timeout)
Jul 27 15:00:13 dell kernel: ata8.00: hard resetting link
Jul 27 15:00:14 dell kernel: ata8.00: COMRESET failed (errno=-5)
Jul 27 15:00:14 dell kernel: ata8.00: reset failed, giving up
Jul 27 15:00:14 dell kernel: ata8.00: failed to recover link after 3 
tries, disabling

Jul 27 15:00:14 dell kernel: ata8.00: disabled
Jul 27 15:00:14 dell kernel: ata8: failed to recover PMP, retrying in 5 secs
Jul 27 15:00:19 dell kernel: ata8.15: hard resetting link
Jul 27 15:00:29 dell kernel: ata8.15: softreset failed (timeout)
Jul 27 15:00:29 dell kernel: ata8.15: hard resetting link
Jul 27 15:00:32 dell kernel: ata8.15: SATA link up 3.0 Gbps (SStatus 
123 SControl 0)

Jul 27 15:00:32 dell kernel: ata8.01: hard resetting link
Jul 27 15:00:33 dell kernel: ata8.01: SATA link up 3.0 Gbps (SStatus 
123 SControl 300)

Jul 27 15:00:33 dell kernel: ata8.02: hard resetting link
Jul 27 15:00:33 dell kernel: ata8.02: SATA link up 3.0 Gbps (SStatus 
123 SControl 300)

Jul 27 15:00:33 dell kernel: ata8.03: hard resetting link
Jul 27 15:00:34 dell kernel: ata8.03: SATA link up 1.5 Gbps (SStatus 
113 SControl 300)

Jul 27 15:00:34 dell kernel: ata8.04: hard resetting link
Jul 27 15:00:35 dell kernel: ata8.04: SATA link down (SStatus 0 SControl 300)
Jul 27 15:00:35 dell kernel: ata8.05: hard resetting link
Jul 27 15:00:35 dell kernel: ata8.05: SATA link up 1.5 Gbps (SStatus 
113 SControl 300)

Jul 27 15:00:35 dell kernel: ata8.01: configured for UDMA/100
Jul 27 15:00:35 dell kernel: ata8.02: configured for UDMA/100
Jul 27 15:00:35 dell kernel: ata8.03: configured for UDMA/100
Jul 27 15:00:35 dell kernel: sd 7:0:0:0: [sdc] Result: 
hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
Jul 27 15:00:35 dell kernel: sd 7:0:0:0: [sdc] Sense Key : Aborted 
Command [current] [descriptor]
Jul 27 15:00:35 dell kernel: Descriptor sense data with sense 
descriptors (in hex):
Jul 27 15:00:35 dell kernel: 72 0b 00 00 00 00 00 0c 00 0a 80 
00 00 00 00 00

Jul 27 15:00:35 dell kernel: 00 00 00 00
Jul 27 15:00:35 dell kernel: sd 7:0:0:0: [sdc] Add. Sense: No 
additional sense information

Jul 27 15:00:35 dell kernel: end_request: I/O error, dev sdc, sector 2727
Jul 27 15:00:35 dell kernel: ata8: EH complete
Jul 27 15:00:35 dell kernel: sd 7:0:0:0: rejecting I/O to offline device
Jul 27 15:00:35 dell kernel: Buffer I/O error on device dm-4, logical 
block 1055

Jul 27 15:00:35 dell kernel: lost page write due to I/O error on dm-4
Jul 27 15:00:35 dell kernel: Aborting journal on device dm-4.
Jul 27 15:00:35 dell kernel: journal commit I/O error
Jul 27 15:00:36 dell kernel: sd 7:0:1:0: [sdd] 488397168 512-byte 
hardware sectors (250059 MB)

Jul 27 15:00:36 dell kernel: sd 7:0:1:0: [sdd] Write Protect is off
Jul 27 15:00:36 dell kernel: sd 7:0:1:0: [sdd] Write cache: enabled, 
read cache: enabled, doesn't support DPO or FUA
Jul 27 15:00:36 dell kernel: sd 7:0:2:0: [sde] 488397168 512-byte 
hardware sectors (250059 MB)

Jul 27 15:00:36 dell kernel: sd