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本帖最后由 MarkZuckerberg 于 2012-6-3 11:19 编辑
[root@server ~]# dd if=/dev/zero of=test bs=64k count=4k oflag=dsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 116.102 seconds, 2.3 MB/s - [root@server ~]# smartctl -a /dev/sda
- smartctl version 5.38 [x86_64-redhat-linux-gnu] Copyright (C) 2002-8 Bruce Allen
- Home page is ttp://smartmontools.sourceforge.net/
- === START OF INFORMATION SECTION ===
- Device Model: ST1000DM003-9YN162
- Serial Number: W1D0WRTT
- Firmware Version: CC4D
- User Capacity: 1,000,204,886,016 bytes
- Device is: Not in smartctl database [for details use: -P showall]
- ATA Version is: 8
- ATA Standard is: ATA-8-ACS revision 4
- Local Time is: Sun Jun 3 05:19:46 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: (0x00) Offline data collection activity
- was never started.
- Auto Offline Data Collection: Disabled.
- 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: ( 575) seconds.
- Offline data collection
- capabilities: (0x73) SMART execute Offline immediate.
- Auto Offline data collection on/off support.
- Suspend Offline collection upon new
- command.
- No 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: ( 1) minutes.
- Extended self-test routine
- recommended polling time: ( 115) minutes.
- Conveyance self-test routine
- recommended polling time: ( 2) minutes.
- SCT capabilities: (0x3085) SCT Status supported.
- 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 113 099 006 Pre-fail Always - 54427552
- 3 Spin_Up_Time 0x0003 097 097 000 Pre-fail Always - 0
- 4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 24
- 5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0
- 7 Seek_Error_Rate 0x000f 100 253 030 Pre-fail Always - 312202
- 9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 53
- 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
- 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 24
- 183 Unknown_Attribute 0x0032 100 100 000 Old_age Always - 0
- 184 Unknown_Attribute 0x0032 100 100 099 Old_age Always - 0
- 187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
- 188 Unknown_Attribute 0x0032 100 100 000 Old_age Always - 0
- 189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0
- 190 Airflow_Temperature_Cel 0x0022 062 048 045 Old_age Always - 38 (Lifetime Min/Max 34/40)
- 191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 0
- 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 23
- 193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 51
- 194 Temperature_Celsius 0x0022 038 052 000 Old_age Always - 38 (0 26 0 0)
- 197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0
- 198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 0
- 199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0
- 240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 69788923592748
- 241 Unknown_Attribute 0x0000 100 253 000 Old_age Offline - 73669293185
- 242 Unknown_Attribute 0x0000 100 253 000 Old_age Offline - 186694490553
- 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% 14 -
- # 2 Short offline Completed without error 00% 8 -
- # 3 Short offline Completed without error 00% 8 -
- # 4 Short offline Completed without error 00% 7 -
- # 5 Short offline Completed without error 00% 0 -
- 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.
复制代码 怎么这么慢? |
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