Disk errors
Leonardo M. Ramé
martinrame at yahoo.com
Wed May 7 10:51:12 UTC 2014
Hi, since a couple or days ago I noted my home server was taking too long to boot. After issuing a dmesg I got this:
...
(ada0:ata2:0:0:0): READ_DMA. ACB: c8 00 27 db 5a 40 00 00 00 00 01 00
(ada0:ata2:0:0:0): CAM status: ATA Status Error
(ada0:ata2:0:0:0): ATA status: 51 (DRDY SERV ERR), error: 84 (ICRC ABRT )
(ada0:ata2:0:0:0): RES: 51 84 27 db 5a 00 00 00 00 01 00
(ada0:ata2:0:0:0): Retrying command
(ada0:ata2:0:0:0): READ_DMA. ACB: c8 00 7f 4b 4f 40 00 00 00 00 11 00
(ada0:ata2:0:0:0): CAM status: ATA Status Error
(ada0:ata2:0:0:0): ATA status: 51 (DRDY SERV ERR), error: 84 (ICRC ABRT )
(ada0:ata2:0:0:0): RES: 51 84 7f 4b 4f 00 00 00 00 11 00
(ada0:ata2:0:0:0): Retrying command
Then I performed a smart control on that drive:
sudo /usr/local/sbin/smartctl -t long /dev/ada0
Here's the output of sudo /usr/local/sbin/smartctl -a /dev/ada0:
--------------------------------------------------------------------------------------------------------------
smartctl 6.1 2013-03-16 r3800 [FreeBSD 9.1-RELEASE amd64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Caviar Green
Device Model: WDC WD7500AADS-00L5B1
Serial Number: WD-WCAU4A883181
LU WWN Device Id: 5 0014ee 101cce510
Firmware Version: 01.01A01
User Capacity: 750,156,374,016 bytes [750 GB]
Sector Size: 512 bytes logical/physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS (minor revision not indicated)
SATA Version is: SATA 2.5, 3.0 Gb/s
Local Time is: Wed May 7 07:05:07 2014 ART
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: (19500) 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: ( 225) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x303f) SCT Status supported.
SCT Error Recovery Control 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 193 156 021 Pre-fail Always - 5333
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 983
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 100 253 000 Old_age Always - 0
9 Power_On_Hours 0x0032 076 076 000 Old_age Always - 17593
10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 981
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 43
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 983
194 Temperature_Celsius 0x0022 105 092 000 Old_age Always - 45
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 - 4455
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% 17584 -
# 2 Short offline Completed without error 00% 17580 -
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.
--------------------------------------------------------------------------------------------------------------
Aparently the disk has no errors, what can be causing the errors shown in dmesg?.
I'm using this: FreeBSD server.rame.local 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243825: Tue Dec 4 09:23:10 UTC 2012 root at farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64
Leonardo M. Ramé
http://leonardorame.blogspot.com
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