Festplatte überprüfen mit smartctl aus den smartmontools
Draußen waren es heute 31 °C. Im Rechenzentrum war es offenbar ähnlich warm, denn gegen 15:30 Uhr hat sich ein Datenbankserver in den Feierabend verabschiedet. Der Reboot hat dann gut 30min gedauert (aufgrund der Filesystem-Checks). Das blöde ist allerdings, dass das RAID-1 nen Knacks wegbekommen hat und sich nun neu synchronisiert. Beim Support hat man mir empfohlen, die Festplatten mit smartctl einmal zu überprüfen. Das Ganze funktioniert folgendermaßen:
smartctl -son /dev/sda && smartctl -son /dev/sdb
smartctl -t short /dev/sda && smartctl -t short /dev/sdb
wait 120
smartctl -a /dev/sda
smartctl -a /dev/sdb
smartctl befindet sich übrigens im Debian/Ubuntu-Package smartmontools.
Die Ausgabe der Platten schaut aber ganz okay aus:
smartctl 5.40 2010-07-12 r3124 [x86_64-unknown-linux-gnu] (local build)
Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Caviar Green (Adv. Format) family
Device Model: WDC WD15EARS-00MVWB0
Serial Number: WD-WMAZA3507331
Firmware Version: 51.0AB51
User Capacity: 1.500.301.910.016 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: Thu Jul 26 18:51:12 2012 CEST
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: (0x85) Offline data collection activity
was aborted 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: (37560) 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: ( 255) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x3035) 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 253 253 021 Pre-fail Always - 1041
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 11
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 090 090 000 Old_age Always - 7647
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 - 9
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 8
193 Load_Cycle_Count 0x0032 197 197 000 Old_age Always - 10221
194 Temperature_Celsius 0x0022 124 111 000 Old_age Always - 26
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 Short offline Completed without error 00% 7646 -
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.
Laut dieser Webseite gibt es die folgenden wichtigen Attribute:
5 Reallocated_Sector_Ct
196 Reallocated_Event_Count
197 Current_Pending_Sector
Wenn die Raw-Werte auf 0 sind, wurden beim Schreiben keine defekten Sektoren entdeckt.
199 UDMA_CRC_Error_Count
Wenn der Raw-Wert auf 0 ist, wurden keine Übertragungsfehler (Kabel) entdeckt.
3 Spin_Up_Time
10 Spin_Retry_Count
Diese Messwerte zeigen Anlaufprobleme der Festplatte.
1 Raw_Read_Error_Rate
7 Seek_Error_Rate
195 Hardware_ECC_Recovered
Diese Attribute beschreiben Lesefehler.
Hoffen wir mal, dass man den Angaben trauen kann und die Platten noch ein paar Jährchen Ihren Dienst verrichten.