= SMART monitoring = SMART monitoring bewaakt de gezondheid van uw schijven. In deze pagina kunt u het monitoren en de schijf-selftest in- of uitschakelen per schijf. '''Opmerking''' Wanneer u het monitoren van een schijf uitschakeld, wordt de schijf-selftest ook automatisch uitgeschakeld. [[Image(smartmon.png)]] Met de selftest bent u tijdig op de hoogte van fouten, voordat u hier hinder ondervind. Hierdoor kunt u uw schijf vervangen voordat deze daadwerkelijke problemen geeft. Het uitschakellen van de selftest is nodig bij sommige schijven, omdat de performance van het systeem dan te langzaam word. Ook gebeurd het bij bepaalde schijven dat de selftest blijft hangen, waardoor performance problemen ontstaan. De monitoring check gebeurd ieder uur. De selftest gebeurd elke nacht. == Verkeerde status weergave == Het gebeurd wel eens dat er ten onrechte een foutmelding weergegeven word. In dit geval krijgt u bij een nieuwe schijf meteen al een foutmelding, met bijvoorbeeld absurde temparatuur waarden. Als een schijf echter eerst OK was en later pas fouten geeft, weet u dat er wat aan de hand is. Het word dan tijd om de schijf te vervangen, voordat deze echt crashed. == Status uitlezen via de shell == Dit kan op de volgende manier: {{{ [Syn-3] root@kantoor2.server.nl ~# smartctl -a /dev/sda smartctl version 5.37 [i586-pc-linux-gnu] Copyright (C) 2002-6 Bruce Allen Home page is http://smartmontools.sourceforge.net/ === START OF INFORMATION SECTION === Device Model: WDC WD1600AAJB-00J3A0 Serial Number: WD-WCAV30438479 Firmware Version: 01.03E01 User Capacity: 160,041,885,696 bytes Device is: Not in smartctl database [for details use: -P showall] ATA Version is: 8 ATA Standard is: Exact ATA specification draft version not indicated Local Time is: Mon Apr 6 17:26:37 2009 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: (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: (2880) 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: ( 38) minutes. Conveyance self-test routine recommended polling time: ( 5) minutes. 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 147 147 021 Pre-fail Always - 3633 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 8 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 099 099 000 Old_age Always - 1009 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 - 6 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 4 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 8 194 Temperature_Celsius 0x0022 101 094 000 Old_age Always - 42 196 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 100 253 000 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% 658 - # 2 Extended offline Completed without error 00% 634 - # 3 Extended offline Completed without error 00% 610 - # 4 Extended offline Completed without error 00% 586 - # 5 Extended offline Completed without error 00% 562 - # 6 Extended offline Completed without error 00% 538 - # 7 Extended offline Completed without error 00% 514 - # 8 Extended offline Completed without error 00% 490 - # 9 Extended offline Completed without error 00% 467 - #10 Extended offline Completed without error 00% 443 - #11 Extended offline Completed without error 00% 419 - #12 Extended offline Completed without error 00% 395 - #13 Extended offline Completed without error 00% 371 - #14 Extended offline Completed without error 00% 347 - #15 Extended offline Completed without error 00% 323 - #16 Extended offline Completed without error 00% 299 - #17 Extended offline Completed without error 00% 275 - #18 Extended offline Completed without error 00% 251 - #19 Extended offline Completed without error 00% 227 - #20 Extended offline Completed without error 00% 203 - #21 Extended offline Completed without error 00% 179 - 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. }}} Zo kunt u ook zien of er nog een selftest gaande is en wat er precies aan de hand is. Met ''smartctl -X /dev/sda'' kunt u een selftest onderbreken.